ISTOK JSC has been working in the market for creating current production facilities since 1959, the potential accumulated over the years allows us to offer our customers a wide range of facilities for providing autonomous or backup power to facilities. There are no standard solutions that would suit everyone, and our specialists will make a project just for your object, saving your money.

We are interested in long-term, productive and fruitful cooperation. Contact our company. We are always ready for mutually beneficial work!

Autonomous and backup power

The fact of the alarming state of affairs in the Russian energy sector is recognized at the highest level. Frequent accidents on power lines, chronic power shortages, outdated equipment that is morally and physically constantly remind of themselves with unplanned outages.

As electrical appliances and machines spread, it becomes increasingly urgent to use backup power sources. Climate change leads to more frequent natural disasters, which in turn cause interruptions in power supply. Disruption of power supply can lead to economic and industrial damage, as well as create a risk to the life and health of citizens. To prevent or minimize damage of this nature use backup power sources.

Existing problems in the energy industry highlight the installation of independent power supplies. An autonomous power plant plays the role of a reserve source of electricity, providing the opportunity to maximize protect consumers from emergency power outages.
In a country house there are often power outages: who among us did not pass the evening with a candle, in an unusual silence without a TV? How to solve this problem? Many zealous owners of country houses and country houses acquire various generators for autonomous power, usually diesel or gasoline mini-power stations.

However, what is clear to private owners is not always clear to those who have been appointed as the owner by order from above, that is, to managers of objects of increased importance. It is noteworthy that, according to the results of the inspection of Rostekhnadzor, in almost all areas of the center of Russia, more than 50% of socially significant objects do not have emergency power. For example, in the Moscow region only 60 of the 148 objects have their own micro-turbines or other sources of autonomous power.
The statistics are sad and require decisive action. There is a corresponding decree according to which all objects of heightened importance must have autonomous sources of electricity.

Let's consider what requirements are attached to the autonomous power supply sources for objects of higher importance.
Since an autonomous power plant comes into action when the current supply is stopped from the main source, automation plays a significant role. This is the ability of the backup generator to automatically start and stop when the power is turned off or resumed, as well as when certain parameters fall. In addition, an autonomous power source should automatically replenish stocks of fuel and lubricants and have a host of other useful functions.

This reasonable requirement is often ignored when installing mini-power plants in facilities of high importance. In many cases, they are triggered after the start button is pressed. It is hard to imagine the consequences of a ten-minute interruption in the supply of electricity in the life support systems of a hospital or an operating room equipment.

The required power of the backup power source must be determined at the design and construction stage, and then electrical wiring is performed. It all depends on what electrical devices you want to connect to a backup power source.

Equally important requirements are the reliability and efficiency of an autonomous source. And the most important is the reliable operation of an autonomous power plant. That is what should be in the forefront in the process of her choice.

Accumulative uninterruptible power supply high capacity

Uninterruptible power systems (UPS Systems) today are very popular in Russia. If long-term power outages are most often used autonomous power plants, the uninterruptible power supply (UPS) is the most efficient and, importantly, cost-effective way to provide a country house with electricity in the short-term, but frequent disruptions in the mains. It is this circumstance that makes them an indispensable attribute of modern suburban housing.

Uninterruptible power supplies use battery power to maintain the mains voltage. In the presence of a UPS, electrical appliances that are in the house at the time of a power outage, switch to the consumption of electricity accumulated by the batteries.

Such a system is indispensable for a computer, because an unexpected power outage can lead to the loss of important documents, or, say, a refrigerator, if unexpected surprises occur on hot days. In addition, many country houses are equipped with autonomous heating systems, as well as water supply, which work only with the presence of electricity.

Compared with stand-alone power plants, uninterruptible power systems have many advantages. First of all, they are considered to be much more reliable (their service life exceeds 10–20 years) and do not require operating costs, unlike, say, diesel, gasoline or gas generators. In addition, the uninterruptible power supply does not burden its owner with the need for periodic maintenance, with the exception of replacing batteries whose service life is 3–10 years, depending on the type of battery and mode of operation.

Lack of uninterruptible power supply systems can be called limited resources. In other words, if the voltage in the electrical network often disappears for more than a few hours, then it is best to think about purchasing an autonomous power station.

The prospect of protecting yourself from power outages by buying an uninterruptible power supply can be easily illustrated with figures. So, in only 5 years of operation, the UPS can save up to 6 times in comparison with a gas generator with automatic start-up. For the purity of calculations, we assume that the voltage disappears once a week for 10 hours. As a result, the use of uninterruptible power supply systems is not only cheaper, but also involves less hassle.

Power supply comparison:

UPS		Petrol generator
Item of expenditure	Costs, rub.	Item of expenditure	Costs, rub.
DPK-1 / 1-1-220M	13 000	Petrol with ABP GESAN G5000H	55 000
Battery (12 V, 100 Ah) - 3 pcs.	21 000	Fuel	93 600
		Motor oil	3 150
		Filter replacement	7 700
		Spark Plug Replacement	500
		Engine overhaul	20 400
Total:	34 000	Total:	180 350

Our specialists carry out installation of equipment, before we carry out the work, we carry out the design of an uninterruptible power system, during which we try to take into account all the wishes of customers.

Despite the limited resources, an uninterruptible power supply can freely provide electricity to a large cottage. Moreover, as a result of his work, the sudden disappearance of the voltage in the network does not affect the operation of the autonomous heating system (gas boiler), water supply, refrigerator, fire safety and security systems, as well as all lamps and appliances connected to the power grid.

In this case, however, in the event of a failure in the supply of electricity it is better to refrain from using powerful electrical equipment. So, you can move the laundry the next day, as well as temporarily stop using the dishwasher, as well as the iron. However, it is best to buy an uninterruptible power supply, clearly calculate the maximum load, and, consequently, the need for electricity.

In addition, it is possible to design a home power supply system in such a way that the power supply to powerful consumers is by-passing the UPS, for example, directly to the power supply network or through a gas generator with an automatic start system. Thus, consumers sensitive even to short-term outages (computers, home electronics, lighting, gas or diesel boiler, refrigerator) will be reliably protected. And consumers who allow power outages will be powered in a few seconds using an autonomous power station with an automatic start system.

The time during which the UPS can supply the house with electricity will depend on the power of the load and the capacity of the batteries. What is interesting, although the factors are closely related, there is no linear relationship between them. In other words, if the load unexpectedly increases by 2 times, this does not mean that the uninterruptible power supply will stretch half as much.

To calculate the backup time, you need to take into account many parameters, in particular, the efficiency of a particular UPS, the ambient temperature, the condition of the batteries and the degree of wear of the batteries. You can calculate the approximate time in the case of the use of batteries of a particular capacity.

So, at a voltage of 36 V in the DC circuit, the UPS is usually installed 3 batteries with a voltage of 12 V each. In this case, if, for example, the battery capacity reaches 100 Ah, and the load power is 100 W, then the system will work for 29 hours.

Load power, W	100	200	300	400	500	600	700
Battery Capacity, Ah	100	200	300	400	500	600	700
18	4,6	1,9	1,2	0,8	0,6	0,4	0,3
27	7,8	3,2	1,9	1,4	1,1	0,8	0,6
42	12	5,8	3,4	2,4	1,8	1,4	1,2
70	20	10	6,7	4,5	3,4	2,7	2,3
100	29	15	10	7,3	5,4	4,1	3,5

At a voltage of 96 V in the DC circuit, the UPS will need to install 8 batteries of 12 V each. However, the reserve time in this case is significantly increased.

Load power, W	200	300	400	500	600	700	800	900	1000	1100	1200	1300	1400
Battery Capacity, Ah	200	300	400	500	600	700	800	900	1000	1100	1200	1300	1400
18	7,4	4,3	3	2,3	1,8	1,5	1,3	1,2	0,9	0,8	0,7	0,6	0,5
27	11	7,4	5	3,8	3	2,5	2,1	1,8	1,5	1,4	1,3	1,2	1,1
42	16,5	11	8,7	6,9	5,3	4,3	3,6	3,1	2,8	2,5	2,2	2	1,8
70	27	18	14	11	9,7	8,3	7,2	6,3	5,3	4,6	4,1	3,8	3,5
100	39	26	19,2	15,4	13,5	12	11	9,3	8,3	7,5	6,8	6,1	5,5

If the absence of electricity is caused by a periodic voltage deviation, then you can use a stabilizer. These devices convert electrical energy with large voltage fluctuations.

In the case of a complete failure in the supply of electricity, voltage regulators are useless. On the other hand, their use as part of an uninterruptible power system reduces the load on the UPS, that is, to use it only when the power supply in the network has completely disappeared.

However, when choosing a battery capacity, you should not forget that the pursuit of maximum values may be useless, since the capabilities of the uninterruptible power supply are limited by the current limit of the charger. It, however, can be increased if you install additional charging cards.

In any case, in order to buy a UPS that would most closely meet current needs, it is preferable to seek help from specialists. Installing the system yourself is quite risky, since the slightest mistake can lead to undesirable consequences and costly equipment repairs.

self-powered
-
[Ya.N.Luginsky, M.S.Fesi-Zhilinskaya, Yu.S.Kabirov. English-Russian Dictionary of Electrical and Power Engineering, Moscow]

electrical engineering, basic concepts

self-contained supply
self-contained power supply

Handbook of technical translator. - Intent. 2009-2013.

See what “self-contained power” is in other dictionaries:

self-powered - savarankiškasis maitinimas statusas T sritis radioelektronika atitikmenys: angl. self contained supply vok. Einzelspeisung, f, unabhängige Stromversorgung, f rus. self-powered, n pranc. alimentation individuelle, f ... Radioelektronikos terminų žodynas

NUTRITION - provision of electronic devices and electrical equipment with electricity for their uninterrupted normal and long-term operation. Distinguish the power supply of consumers from the centralized energy system and autonomous, in this case (see ... ... The Big Polytechnic Encyclopedia

Truck Grounding Device - Check neutrality. There should be details on the talk page. Grounding devices for tank trucks (abbreviation UZA) are designed to remove the charges of static electricity at any technological ... Wikipedia

Dosimetry of ionizing radiation - The section of applied nuclear physics, which examines the properties of ionizing radiation, physical quantities characterizing the radiation field and the interaction of radiation with matter (dosimetric values). In a narrower sense, the words D. and. and ... Medical Encyclopedia

DTS - (Digital Theater System, DTS), multichannel system for playing digital sound in cinema. By 2001, DTS had become one of the world standards for the quality of cinema sound, faithfully reproducing in the cinema a recording made at a studio. Quality ... ... Encyclopedia of Cinema

TRUCK UNIT - coupled sections of locomotives (control electric locomotives) and trucks of dump trucks (dumpcars) equipped with traction electric motors of the same type with engines of electric locomotives, which makes it possible to increase coupling weight by 2 3 times and include into the composition ... ... Large encyclopedic polytechnical dictionary

PACEMAKER - (from electro. Greek. kardia heart and Latin. stimulo I push, excite) an electronic apparatus for replenishing nervously energetich. cardiac muscle function. E. generates pulses with an amplitude of 5 6 V, a duration of 1 1.2 ms with a frequency of 60 70 pulses in 1 ... ... Large encyclopedic polytechnic dictionary

Spacewalk - Cosmonaut Oleg Kotov in the open space during the space flight of the ISS 22. The cosmonaut's work in outer space ... Wikipedia

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Anechoic chamber - Acoustic anechoic chamber ... Wikipedia

Autonomous power
autonomous food autonomous food - [Y.N. Luginsky, M.S. Fezi-Zhilinskaya, Yu.S.Kabirov. English-Russian Dictionary of Electrical and Power Engineering, Moscow] electrical engineering, basic

Al food - what does it mean? All about food types

Types of food - a fairly broad concept. Under them can be meant the consumption of energy sources and nutrients in general, the particular eating habits of a person, as well as certain moments - types of food in hotels, airplanes, etc. In this article we will try to make out all the classifications in detail and answer some questions. Al food - what does it mean? What kind of it can be? What does autonomous power mean? Consider many other nuances.

Food in the scale of the biosphere

Food is a process of consumption of substances and energy, which is characteristic of absolutely all organisms inhabiting the globe. It is divided into two large groups - autotrophic and heterotrophic nutrition. Within themselves, they have smaller species.

Autotrophic. This is the ability to create organic elements from inorganic - carbon dioxide, mineral salts and water. Not to be confused with autonomous power. The latter concerns power supply. Autotrophic "skill" characterizes plants, some of the simplest, bacteria. Autotrophs are divided, in turn, into two categories:

Phototrophs use the energy of the sun for the biosynthesis of substances. These are plants, cyanobacteria.
Chemotrophs are used for the formation of organic elements of the energy of chemical reactions resulting from the oxidation of inorganic compounds. These include nitrifying, hydrogen, sulfur, iron bacteria.

Heterotrophic. These are organisms that consume ready-made organic substances, because they themselves are not able to form them from inorganic. This is the majority of bacteria, viruses, fungi, animals, including and we are with you. These living things are classified according to two criteria:

You can also highlight creatures such as mixotrophs. They can and consume ready-made organic substances, and synthesize them independently. These include euglenian algae, insectivorous plants, etc.

Types of human nutrition

In the light of recent trends, human nutrition is divided into the following categories:

Omnivorous. This type of food historically characterizes us. This refers to a person who eats the most diverse, but at the same time allows in his modern diet fast food, products containing preservatives, dyes.

Separate (healthy, proper) food. What is meant by this term? What does "proper nutrition" mean? This is a strict combination of various types of foods, food consumption time, caloric content of dishes.

Vegetarianism, including Lacto-Eggs, Oviet. People loyal to this type of food refuse to eat the flesh of animals. However, dishes from fish, shellfish, eggs, milk and its derivatives for many of them are not taboo.

Veganism Vegans eat only herbal products. Like vegetarians, they allow for heat treatment of food.

Raw foods (including veganosyroedenie, laktoovosyroedenie, syromonoeedie, etc.). People who adhere to this type of food, which in many respects is a certain worldview, use only vegetable food and only raw food - without cooking. It is important to note fruitorians here: they exclude plant seeds (beans, seeds, nuts, etc.) from their diet, eating only fruits and vegetables.

The most recent stage is the so-called Bigu state (sun-study, prano-studies, bretharism) - “failure”, the rejection of solid, and subsequently liquid food. Needless to say, it is achieved through lengthy spiritual practices.

The main categories of food in hotels

Now let's get to the bottom of what it means - powering Al, FB, RO, BF, etc.

Al food - what does it mean? All about food types
An article about healthy eating and sports. Useful recipes and exercises. News, photos and videos.

Autonomous power supplies

With the situation when the power is turned off, everyone has probably come across. And sometimes there is no electricity at the most inopportune moment. In country houses problems with electricity supply is also not uncommon. But what if such situations occur quite often?

Modern technologies have developed so well that a way out of this situation was found - these are autonomous power sources that can be bought from us.

Voltage drops? Autonomous sources of electricity will help!

Sources of backup power also relevant when stretching the power line is simply impossible, or the power supply is simply of poor quality. Each owner of a country house wants to relax and have a great weekend, and without electricity in such situations just can not do. Constant and systematic voltage drops, accompanied by "flashing" of lighting devices, adversely affect the equipment, significantly reducing their service life. Too much spikes can destroy the chips and power supplies.

Functions of autonomous power sources.

In order for all the equipment to work long and smoothly, it is better to use independent sources of electricity. Their main task is to ensure a normal, proper shutdown of electrical appliances in the event of an unexpected power outage. They must also reliably protect the equipment from all types of interruptions that occur in electrical networks, namely:

voltage spikes
high voltage emissions
the so-called "subsidence" voltage
in case of power failure,
replanting
run out of frequency.

Today, almost every home has a personal computer. According to studies, it is he who is exposed to about 120 abnormal situations every month, the cause of which is precisely the voltage drops.

Uninterrupted power helps to completely forget about all the above problems. The tasks of the UPS are as follows:

absorb a small amount of short-term surge voltage,
filter the supply voltage, reduce noise,
provide backup power to the load for a certain amount of time after loss of voltage in the network,
protect devices connected to the network from overload and short circuit.

But in order to provide full protection, backup power sources must be connected to the network. The devices themselves are already connected to them. UPS converts the flow of electricity in such a way that it is optimal for the full operation of the device.

Personal power supply system is the best option for a country house.

Autonomous sources of electricity are relevant if it is simply unprofitable for a person to hold a power line and connect to the centralized power supply networks. For example, if you have a cottage that is located too far from the centralized power supply networks, and you go to rest in these places as far as possible, it is better to create your own autonomous power supply system. She will be able to provide you with a number of advantages, namely:

no need to pay for network connection
You will not depend on the price of electricity,
You will generate electricity when you need it.

What should the autonomous power supply system include?

Source of energy. As a rule, there may be several or one sources at once. This may be a photovoltaic battery, a liquid-fuel generator GTK, working on gasoline or diesel fuel, or a wind power plant. The main can be any of the above sources, others can be used as additional.
Battery is a necessary element in the system of autonomous power supply. Even though the main source of energy is available in the system, the presence of a battery will allow it to be turned on for a certain amount of time, and electricity will flow continuously.
Inverter. It is a device that commutes DC to AC. It is necessary in cases where the equipment in the house consumes 220 V or if consumers are located at a considerable distance. In this case, there are so-called interference and loss.
AB charge controller. Needed in order to prevent overdischarge and overcharge. Very often, such a controller is built into the inverter.
Load. During connection to the autonomous power supply system of various devices, it is necessary to know that the devices must be energy efficient. As an example, fluorescent lamps. They are recommended to use for the reason that incandescent bulbs consume 4 times more electricity.

If you want to forget about the problems with voltage once and for all, extend the life of the devices installed in your cottage or house, autonomous power supply systems, uninterruptible power supplies and electric generators - this is what you need.

Sometimes it is very difficult to find a company that can offer everything at once. But if you did not find what you were looking for, it is enough to contact our consultant, who will give answers to all your questions.

With us, your devices, even with strong voltage drops, will work stably, and in the event of a total power outage, you will be able to correctly complete the session of the personal computer and have time to save all the data that might be lost.

Autonomous power supplies
Autonomous power sources - a pledge of stable and durable operation of your equipment!

Today, both private users and large industrial enterprises are striving to have an autonomous source of electricity supply. This is due, primarily, to the possible difficulties of electricity supplying organizations with ensuring uninterrupted supply of electricity. Prolonged interruptions in power supply not only lead to financial costs, but can also be a threat to human life if outages occur in medical institutions or in hazardous and harmful technological production.

The main reasons for the presence of independent sources of electricity

Low quality of current (sharp jumps, drops, fluctuations, etc.) received from the energy supplying organization,

The presence of consumers of the special and first category requiring uninterrupted power supply,

Lack of connectivity to existing power grids.

The main advantage of autonomous power supply is the uninterrupted operation of technological equipment. Autonomous sources can be used both as a primary and as a backup source. An emergency source is equipped with an ATS device capable of supplying voltage to a de-energized section of the power grid in a few fractions of seconds.

Varieties of autonomous sources

The source of electrical energy may be:

Diesel or gasoline generators,

Engines in power plants can be used, both gasoline and diesel. The first, as is known, are more economical, start up easier, and are characterized by a more significant service life. But their cost is about 2-3 times higher than gasoline ones of similar power. Therefore, diesel power plants are recommended to be used in cases when interruptions in power supply occur frequently enough, which requires long-term station operation. Otherwise, it is better to use gasoline generators.

Solar panels today are installed on private homes and cottages, as a home power plant, and can be used as a primary or backup source of electricity. They do not require significant costs for the production of electricity, the generation of electricity in them occurs almost "for nothing". The disadvantages of these devices include a large amount of start-up financial investments, besides the peculiarities of saturation with solar energy create some difficulties in their operation. This is due to the fact that the Sun is able to shine not all year round, but only during the day and only in clear weather, therefore, complete with photovoltaic batteries, batteries are used to accumulate electricity, and converters are devices that convert DC voltage from batteries to alternating 220V, 50 Hz.

Wind and hydrogenerators are equipment that has been used for a long time to generate electricity. Their use is limited by various wind activity of the area and the presence of reservoirs with active moving water flow. Also, their effective operation involves the use of additional equipment (batteries, converters, etc.).

Almost 100% reliability of the power supply system is ensured when working in parallel with external power grids. Own generator set provides energy independence, which allows to increase the service life, the duration of the equipment operation period by 25-30%.

Autonomous power supply sources
Autonomous power supply sources Today, both private users and large industrial enterprises are striving to have an autonomous power supply source. This is due, in

Autonomous power supply is a hot topic for Russia. In the majority of small settlements, the existing networks have reached a high degree of deterioration and cannot provide electricity to all consumers. There are more disappointing data - 60% of the country’s territory cannot be connected to the network in principle. The very first lack of energy felt by the owners of private houses and villas. But they are not the only ones who need it. Meteorological stations, farms, cellular base stations, research stations, etc. are facing this problem.

Previously, autonomous power supply to the house was provided by gasoline generators. But this solution is not optimal, since the generators require constant refueling, they need to carry out regular maintenance, and their resource is not as long as we would like. Another significant drawback is the poor quality of the output current.

Inverters as a source of autonomous power supply for a private house

Significantly improve the performance of the system is able to connect to the generator of power inverters with chargers and capacious rechargeable batteries, which work as a source of autonomous power supply of a private house at a high level.

In this case, the generator does not function all day, but only the time that is needed to recharge the batteries. The rest of the clock all the country house systems are powered by battery power, which is converted by the inverter into alternating current with a pure sine.

As soon as the batteries are discharged, the inverter reconnects to the generator, providing the alternating current to the load and at the same time replenishing the battery charge. Autonomous power supply, organized according to this principle, ensures reliable operation of the equipment, since switching between the power supply of the load from the batteries and the generator occurs automatically.

The inverter regulates the operation of all devices, the control of which is possible in the presence of special branded system controllers. You can program the system by writing several scenarios for the scenario:

the generator turns on when the voltage level or the charge level of the batteries drops;
generator connection can also be associated with an increase in load;
autonomous power supply from the generator can be programmed for certain hours (for example, to allow it to work during the daytime and to prohibit it at night).

The use of inverters and batteries allows you to extend the life of the generator and reduce the cost of maintaining the object, significantly reducing the cost of fuel purchase and maintenance. In this case, maintenance of components of the inverter system is not required.

Operation of inverters with alternative backup power sources

Modern power inverters with batteries allow for the autonomous operation of all household appliances through the use of alternative sources of power supply. In this case, besides the generator, solar panels and a wind generator are included in the hybrid system. Also, the backup power supply system can operate only with renewable energy sources.

The energy of the sun or wind batteries can accumulate with the help of special charge controllers in those moments when it is available. With a sufficient level of battery charge, the inverters convert the direct current of the batteries into an alternating one with a pure sine wave, which is used to maintain the efficiency of household appliances and appliances.

Another option for the use of inverters - building uninterruptible power systems in situations where there is a network connection, but is not stable. In this situation, an autonomous power source based on inverters with batteries and solar panels is used not only when the voltage in the fixed network disappears, but also for the priority use of solar energy in order to save network electricity.

Victron inverters of the Phoenix Inverter series with a capacity from 1.2 kVA to 5 kVA are well suited for use with alternative energy sources: solar panels and wind turbines.

Victron inverter series Phoenix is a professional technical device for converting direct current into alternating current. Designed using hybrid RF technology, it is designed to meet the highest requirements. Its function is to provide power to any autonomous power supply system with the need to obtain high quality output current with a stable voltage in the form of a pure sinusoid. In everyday life, voltage with a pure sine requires such instruments as a gas boiler, a refrigerator, a microwave, a TV, a washing machine, and so on.

Fully autonomous power supply of a private house with various household appliances requires both high voltage quality and the ability of the inverter to cope with the starting currents of difficult loads (refrigerator compressor, pump electric motor, etc.). The SinusMax Phoenix Inverter function can satisfy this need. It provides double short-term overload capacity of the system. Simpler and earlier voltage conversion technology is beyond its power.

Inverter power consumption:

at idle: from 8 to 25 W, depending on the model;
in the load search mode: from 2 to 6 W, this mode is accompanied by the regular switching on of the system every two seconds for a short period of time.
with continuous operation in power saving mode (AES): from 5 to 20 watts.

Autonomous power supply systems allow for their own control and monitoring by connecting the inverter to a computer. Victron Energy has developed VEConfigure software for its inverters. Connection is made via the MK2-USB interface.

The inverters Phoenix Inverter and Phoenix Inverter Compact can operate both in parallel configurations (up to 6 inverters per phase) and in 3 phase. Optimal in the "price / quality" ratio, they are suitable not only for the home, but also for the autonomous power supply of transport and mobile complexes.

Autonomous power supply system of a private house

The autonomous power supply system at home can include not only an inverter and alternative energy sources, but also a generator. The inverter system will turn on the generator in case of need to recharge the batteries. To start the generator, you can use either the built-in relay of the inverter or the relay of the battery monitor BMV-700. Upon reaching the required level of charge, the generator turns off. Then the batteries again begin to provide power to the loads. Such a scheme will allow you to fully provide electricity to a remote house, even in the temporary absence of the sun or wind.

Batteries for autonomous power supply

The company "Vega" offers lead-acid batteries for self-contained power supply of well-recommended brands:

These batteries are made by GEL technology, are resistant to deep discharges, do not require maintenance and topping up of water, have more cycles than AGM-batteries.

With a properly selected system and ensuring a discharge of not more than 50%, the battery life can reach about 1000 cycles. By installing such a system at home or at a controlled facility, you will be convinced of its impeccable long-term service.

Variants of basic inverter backup power systems PracticVolt based on Victron Energy inverters

Price: 41 236 rub.

Recommended for uninterrupted power supply of a gas boiler and circulation pumps of a country house, cottage or other objects with a load power up to 800 VA. The PracticVolt system includes a Victron inverter and maintenance-free high-capacity batteries.

Price: from 110 335 rub.

Recommended for uninterrupted power supply of a gas boiler, circulation pumps and household appliances of a country house, cottage or other objects with a load power up to 1600 VA. The PracticVolt system includes a Victron inverter and maintenance-free high-capacity batteries.

Price: from 174 827 rub.

Recommended for uninterrupted power supply of electrical appliances and household appliances of a country house, cottage or other objects with a load capacity of up to 5000 VA. The PracticVolt system includes a Victron inverter and maintenance-free high-capacity batteries.

Brand:	Victron

Price: from 449 886 rubles.

Construction in a rarely populated area is accompanied by a number of difficulties. On the one hand, living on the outskirts is a pledge of peace, tranquility and a positive environmental situation. At the same time, in such places there are problems with infrastructure and communications. Lack of electricity is the main problem that needs to be addressed first. The laying of the electric line from the central network is expensive, so an autonomous power supply of the site will be a cost-effective solution.

Advantages and disadvantages of the introduction of autonomous power

The indisputable advantages of switching to your own grid are:

Full independence from the centralized power supply.
Lower cost of 1 kW of electricity when using alternative energy sources.
Power supply stability.
The possibility of selling over-generated electricity to the network.

Having at its disposal an autonomous power supply system at home, it is possible to get uninterrupted electricity, even at those moments when those around it are temporarily deprived due to the performance of repair work on power transmission lines. Autonomous systems have disadvantages. These include:

The high cost of equipment.
Loss of storage space required for equipment placement.

Alternative energy sources for home power

Now the development of technologies allows using the following systems as a source of electricity:

Petrol and diesel generators.
Solar power plants.
Wind power stations.

All these types of equipment have a different cost, as well as profitability. In addition, for their installation requires the observance of certain conditions, which is not always possible in some cases. This primarily depends on the location of the site and other factors.

Petrol and diesel generators

Such generator sets are the most reliable, while they are cheaper than other systems. Unfortunately, the very cost of producing 1 kW of energy is very high. Such equipment is an internal combustion engine that is connected to an electricity generating coil. The motor spins it, and it in turn creates an electric current.

The most compact are petrol generators. They are very light, but in such a performance in power they are able to provide with energy only a few weak household appliances, such as lighting. More serious generators give out enough energy for full use of all available household equipment in the house. They are quite productive to power serious consumers, such as, or.

The most cumbersome, but also profitable in terms of the ratio of the cost of fuel and the energy received are diesel generators. But they, like gasoline equipment, are rarely used as a full-fledged autonomous power supply. The high cost of obtaining energy forces them to be used only as a backup source at the time of interruptions to the central power grid.

Consumption of a diesel generator to produce 1 kW per hour is 250 g of fuel. Thus, even when using the generator to power only the TV, and in an hour about a liter of diesel fuel will be burned. Constantly paying such a price for such a small amount of electricity is absolutely unprofitable.

In addition to the high cost of such equipment is not without other shortcomings:

Noise in the work.
The need for manual periodic refueling of the tank.
The inability to work around the clock continuous, because the equipment needs to be cooled.
Difficulties with the launch of the cold season, especially diesel generator machines.

Since such an autonomous power supply is used as a temporary one in case of interruptions in the central power grid, it is often connected in parallel to it. In addition to the generator itself, with an inverter built into it, it also uses an automatic start system to convert electricity from DC to AC. It takes on the responsibility of starting the generator when the power is turned off in the central network. Equipment can be configured for various parameters. For example, the generator starts 2 or 3 minutes after the loss of electricity. Thus, there is no need for the usual manual start. As soon as the voltage in the central network starts flowing again, the equipment will automatically shut off and the generator engine will stop.

Autonomous power on solar batteries

Such self-contained power is much more preferable than fuel generators on internal combustion engines. The most important advantage of such systems is the very low cost of producing 1 kW of energy. For the operation of the solar battery requires only sunlight, which comes for free. The principle of such systems is to convert light photons into free carriers of electric charge.

In order for such a system to produce really enough power for the operation of household appliances in a house, it is required that it have a large area. One square meter of the surface of the solar battery provides power of about 100 watts, at voltages up to 25 V. This is very small, and only enough to slowly charge or power the light bulbs.

In order for the solar battery to give an electric current of the required parameters needed for the operation of equipment intended for 220 V AC, installation of additional equipment is required:

Inverter.
Controller.
Rechargeable batteries.

Inverter converts the DC voltage to AC, bringing it under identical parameters with electricity at 220V from the central network. In some cases, the solar battery can be connected to equipment insensitive to voltage parameters. It can be heating heating elements heating water for household needs or in the heating system.

In order to get all the benefits of using a power plant, it is necessary to accumulate excess energy in order to use it in the future. Such a source of energy allows you to generate electricity only during the day in sufficiently bright sunlight. At night, batteries are completely useless. To solve this problem, apply controller charge, which recharges the battery. The accumulated electricity on it is fully or partially consumed in the evening and at night, and in the morning the charge is again replenished from solar panels.

At first glance, solar panels are an absolutely perfect solution when cost-effective self-powered power is required at home.

However, such systems are not without flaws:

The high cost of solar panels and other equipment.
The need for periodic cleaning of the surface of the battery from a layer of dust, reducing their effectiveness.
Batteries take up a lot of space and require placement on the sunny side of the site.

Many of the shortcomings of solar power plants are completely solvable. Often, problems with the placement of such equipment are solved by its installation on the roof, thereby not being occupied by the storage space. This immediately solves the problem with shading, because small fruit trees and farm buildings do not create a disturbing shadow. As for the high cost of equipment, modern solar panels have a great resource, so they manage to pay off much earlier than they fail. However, it should be borne in mind that such an energy source implies a constant charge and discharge of the battery. From this, its resource is quickly reduced. To have an adequate supply of energy at night, the battery will have to be periodically changed.

Autonomous power from the wind

In this case, the energy source is a wind generator. This is also a rather expensive equipment, but it is more compact than the solar electrical system. It can be said that windmills combine the design features of generators on internal combustion engines and solar panels. Windmills and generators on fuel are similar, but the first ones receive torque as a result of pushing the blades off with the wind, which is naturally free, and diesel or gasoline cars remove it from the engine. The similarity of wind turbines with solar panels is the need to use similar auxiliary elements - an inverter, a controller and rechargeable batteries.

The positive sides of wind turbines include:

Very low cost of producing 1 kW of energy.
The need for a small area for installation.
Maintainability system.

As for the shortcomings, there are many:

Strong noise at work.
The instability of obtaining energy in the absence of wind of sufficient strength.
The difficulty of maintenance due to the location of the wind generator on the dais.
Interference impinging on communications.
The need for location at a distance within a radius of 20 m from buildings and tall trees.

The hum of a windmill is often unbearable, especially if it has not been serviced for a long time. It is created not only by the bearings, but also by the wind in contact with the blades. As a result, such an autonomous power supply will not work in the case when the wind generator must be placed close to the house.

- this should know!

Theme " Standby and Autonomous Power Supply - you should know this!

To begin, let's clarify in terms of backup and autonomous power supply. So, backup power means an auxiliary source of electricity, which in case of loss of the main line should provide further power supply to electrical power consumers. It can be not only fully independent power supply systems (batteries, and converters powered from them, mini-stations, fuel cells, etc.), but also spare urban power lines.

Autonomous power supply by itself implies a completely separated power supply system, which is able to generate or give away the accumulated electrical energy to various consumers. In the event of a power failure in the main city power grid, such a system must take the power load of existing consumers. Although, to the autonomous power supply can be attributed, and chemical power sources (including batteries). The main idea of this type of electrical source is to supply the load with electric power, provided that there is no external power source (ordinary urban power grid).

For the most part, these two concepts intersect strongly with each other, which makes it possible to consider them to be the same (only in some cases these terms can be used as “porazen”). The task of independent power supply can be solved in various ways, or rather, the autonomous power supply system can be made based on various methods of producing electrical energy. The beauty of electricity lies in the fact that this invisible power to the human eye is universal. Only the methods for converting one type of energy into another differ.

Where is the term power backup used primarily? Where there is a high probability of disconnecting the main source of power supply (which is usually the role of the city electric grid), or in the case when de-energizing occurs extremely rarely, but the phenomenon of “de-energizing” is rather critical. In these cases, the main task of the backup power supply is timely picking up of the existing load and the subsequent provision of electricity to the existing consumer until the main supply from the city network is fully restored.

About autonomous power supply more can be heard in cases when we are talking about the complete absence of the main source of power supply (urban power supply). In this case, this is the most autonomous power supply in the role of the main power supply system (or it is used so often that it reserves the right to be called such). Such cases include the implementation of the power supply of a country house (where there are temporary or permanent problems with the supply of the city power grid), places remote from the city (where the city highway is not initially provided for), etc.

In the role of the main power supply system is a complex power grid, the main node of the generation of electricity which is NPP, TPP, HPP. In the case of autonomous power, the center of power generation is mini-power generation systems that operate using combustible fuel (gasoline, diesel, gas, coal, etc.), wind power (wind turbines), sun (solar panels), chemical reactions (chemical sources current - batteries, batteries, fuel cells).

The specific use of one or another source of electricity generation depends on the existing conditions (terrain, climate, operating modes of autonomous sources, needs, cost, etc.). It should be added that in the role of a backup power source can be additional parallel power lines, which are powered by all the same urban power grids.