Backup power supply of a private house from a battery. Home backup power supply: UPS, generator, auto start

Power outages in our power grids, unfortunately, are a frequent occurrence, especially outside the city. Outages typically last from a few minutes to several hours. In the event of power outages, you can be left without electricity for several days.

Usually, gasoline or diesel generators are used to provide electricity to consumers in the house. However, their use is limited - they cannot be placed in an apartment, they need a special, well-ventilated place. The noise and exhaust gases from their operation can be an obstacle to the use of generators - neither you nor your neighbors are likely to like the noise and stench. Fuel for them also needs to be stored somewhere - and this immediately raises questions about fire safety.

We have installed hundreds of such backup systems

Therefore, a more correct solution would be to install an inverter-battery backup power supply system. Such a system will ensure reliable and uninterrupted operation of consumers in your home, including security and fire alarm systems, communication systems, heating systems and other critical loads. will provide electricity to your home, office, shop, can be used as a power source for mobile power consumers. There are practically no restrictions on the use of such an uninterruptible power supply system - you can install it in a house or apartment, and it requires virtually no maintenance.

Advantages of an inverter-battery backup power supply system

A comparison of the IAS with the traditional solution in the form of an electric generator is given in the article in our Library "IAS vs. DGU - what to choose? ".

  • Power outage protection
    During a power outage, the uninterruptible power supply unit (UPS) automatically switches to battery operation within a few milliseconds. When an AC voltage appears at the input of the UPS, the converter automatically switches the load to the network and simultaneously starts recharging the battery. Many UPSs provide a multi-level battery charge mode, which allows you to charge the battery to 100%, increases the efficiency of the charger and the service life of almost all types of batteries.
  • Independence from the availability of electricity in the public network
    The inverter-battery backup power system allows you to be sure that you will have electricity even during power outages.
  • Protection of electronic equipment and sensitive household loads

    If the voltage in your electrical network is of unsatisfactory quality, there are surges, drawdowns, phase imbalance, then you simply need a backup inverter-battery system. If the input voltage parameters deviate from the specified ones, the UPS will switch to work through the converter and provide a stable power supply with high power parameters. This will protect your critical and sensitive load from power surges and prevent it from failing.
  • Starting currents
    Most modern inverters withstand short-term overloads (from 2 to 5 times), which makes it possible to start electric motors of comparable power (refrigerators, pumps, etc.).
  • No need for mechanical repairs
    Digital technologies practically exclude the use of mechanical elements. Compared to a generator, the converter has fewer parts that can fail. The converter does not require routine maintenance.
  • No noise during operation
    Perhaps you don't want the generator to wake up the whole area during its operation. Perhaps you are simply tired of the noise of the generator. The inverter-battery system works almost silently. The generator can be included in the system if interruptions in the power supply exceed a few hours. Cm. .
  • Ecological cleanliness
    If you are using an inverter instead of a generator, you save environment from destruction and pollution.
  • Extending the life of your generator
    With a small load, the generator operates in a mode, not only with increased specific fuel consumption, but also contributing to its rapid wear. The generator is designed to work with a load not lower than a certain level. If the load is below this level, then deposits appear on the valves, which significantly reduces the life of the generator. Instead of running the generator to watch TV or to power emergency lights, use an inverter-battery system and turn on the generator when you really need it.
  • Fuel economy
    Your generator consumes almost the same amount of fuel at both high and low loads. Therefore, it is desirable to load the generator at approximately 80% of its rated power. If you load it less, this will lead to increased fuel consumption. If more - to overheating and reduce the life of the generator. Advanced inverter systems can redistribute generator power between load power and battery charging and keep generator load at an optimal level. If you have such a converter, you can reduce the number of trips for fuel. Plus, your generator will last much longer.
  • Accurate battery consumption
    Modern inverters monitor the presence of the load, and when there is no need for electricity, they switch to standby mode, in which they consume the minimum current. If electrical appliances are switched on, the inverter detects this and switches on immediately. In other words, if you have such a converter installed, you can turn it on and forget about it. You only need to turn it off if you leave the house for a really long time (more than a few weeks).

The inverter-battery system is fully adapted to work with alternative energy sources (solar panels, small wind farms and micro hydroelectric power plants). Just add a renewable energy source and a corresponding charge controller and you will have a completely autonomous, environmentally friendly power supply system for your home or facility.

If your power grids experience power outages, voltage fluctuations, or other power grid parameters that do not meet load requirements, you need a modern system with an uninterruptible power supply (UPS). We have installed many such backup power systems, you can see some examples in the section "Our installations"

What does an inverter-battery backup power supply system consist of?

INVERTER transforms D.C. from batteries to alternating 220 V with a frequency of 50 hertz. The inverter is the core of a backup power supply system, which usually consists of:

  1. inverter that converts direct current from the battery to variable voltage 220V
  2. rechargeable battery (AB), which is recharged during the presence of electricity from an external source
  3. a charger that provides a multi-stage high-quality charge of batteries
  4. controller (usually the controller is built into the uninterruptible power supply), which monitors the charge and discharge of the battery, as well as the voltage in the external network. If the quality (voltage value and frequency) is out of range or the voltage disappears, the controller instructs the system to switch to battery power through the inverter.

There is 2 types of backup power systems— with transfer relay and on-line systems. First, if there is mains voltage, the UPS passes the available mains voltage to the load and simultaneously recharges the batteries with the built-in charger. Some UPSs can also stabilize the output voltage when the AC input voltage fluctuates. However, if the fluctuations are strong, then it is better to use a special stabilizer at the input of the system - this will provide the best output voltage parameters, because usually the stabilizers built into the BBP have only coarse voltage stabilization with a large stabilization step.

In the event of a power outage, the system almost instantly switches to battery operation and converts their energy into alternating current stabilized voltage 220 V, frequency 50 Hz. When electricity appears, the system, after analyzing the quality of the incoming voltage, automatically switches to charge mode or continues to work in conversion mode (if the network parameters do not match the set ones) until normal voltage is restored.

If the network quality is very poor, it is better to use online backup uninterruptible power supply system. In online systems, the inverter is always on, and it is he who provides high-quality electricity to consumers. The network is used only to charge the batteries. Such systems are usually somewhat more expensive, and the battery operation modes in them are more difficult, but they must be used if the mains voltage cannot be corrected by a stabilizer, or it has strong distortions - unfortunately, this is not uncommon in our rural networks.

Most inverters can withstand short-term overloads, which allows you to start electric motors (refrigerators, pumps and other equipment).

How to choose a kit for IAS and where to buy?

"Your Sunny Dom" offers you uninterruptible power supply systems using the best developments of domestic and foreign manufacturers.

We supply and install systems only with high-quality equipment. The inverter output is a pure sine wave. System with sinusoidal output voltage used where consumers (load) are sensitive to the shape of the supply voltage. For example, some electric motors, as well as transformers and other inductive load, overheat and give less power when powered by non-sinusoidal current.

We offer you systems with an output power from 0.5 to 72 kW based on uninterruptible power supplies from various manufacturers. To ensure a reliable power supply, it is recommended to use the BBP Studer Xtender, SMA, Schnider Electric and Outback Power, MAP Energy. Detailed description these devices, indicating specifications and preferred applications you can see in the "Inverters" section of our website and in our. Such systems provide high reliability of power supply with excellent power quality.

Systems are usually completed. Almost all UPS from the manufacturers listed above have a powerful multi-stage built-in charger that charges batteries with the highest efficiency and efficiency. If the power of the built-in charger is not enough, or the system uses an inverter without a built-in charger, you can supplement the system with a special high-power charger (with charging current from 20 to 250 A), which will increase the battery capacity to the required one.

Some inverters ( , SE XW/SW, SMA , Hybrid/Dominator) have grid or generator support mode. This mode is necessary if there is a restriction on the connected installed power of the network (for example, the connected power of the network is 5 kW, and the peak power of your equipment in the house is 15 kW). At the same time, at peak load times, the inverter can either switch to battery power (Outback inverters, and others), or (Studer, SE, Rich Electric and SMA inverters). In this case, the battery can be charged at night or off-peak hours, and during peak hours, power the load from the inverter or from the mains and the inverter at the same time. In this case, the power of the connected load is determined by the power of the inverters (from one to three connected in parallel and synchronized with each other in a single-phase system, or from 3 to 9 in a three-phase system). You can set the time at which the batteries will be charged, for example at night, when electricity can be cheaper.

In "advanced" inverters, there are a number of other useful modes (for example, sleep mode, partial inverter mode, etc.). Such inverters can be synchronized to the output, so it is possible to easily increase the power. Studer, SMA and SE inverters are synchronized with each other without additional blocks (usually up to 3-4 inverters in a single-phase system, and up to 9 in a 3-phase system - check in the description for a specific inverter), for Outback inverters an additional interface module is required - hub. For BBP and special ones are needed. Almost all models work with a remote control and management unit, through which the inverter parameters are monitored and configured. Inverters are synchronized with each other only in the top Dominator model.

Very often, to ensure the functioning of a heating system operating on natural gas, liquefied gas, diesel fuel, etc., it is required to feed electric circulation pumps and the boiler control system. In such systems, when the mains voltage fails, the process of heating the house also stops, even if there is the main fuel (gas, firewood, diesel fuel, pellets, etc.). Therefore, for such systems, it is imperative to use at least small backup uninterruptible power supplies with batteries. Usually, the required power of the electrical part of such heating systems does not exceed 1-2 kW. If you add power for emergency lighting and other vital loads, then the inverter power should be at least 2-3 kW. The inverter must necessarily have a sinusoidal output voltage, because the circulation pumps and control electronics are usually "naughty" when powered by non-sinusoidal inverters, and sometimes they can fail. For such small systems, Must Power PV20 inverters with a capacity of and are ideal. We have stocked to facilitate your choice of equipment.

For such cases, in addition to inverters with a built-in charger, circuits with separate inverters and chargers can also be used. In this case, the inverter should preferably have a sleep mode and low idle consumption in order to consume a minimum amount of energy when there is mains voltage. In such systems, inverters with a power of 0.3 kW can be used. The kit should include a charger, such as Prosolar RD or UltiPower. Also, it is necessary to ensure automatic switching to work from the inverter in the event of a power outage. See various

Power cuts are not uncommon in cottage and country houses. In some country houses and summer houses there is no centralized power supply system. In such situations, an externally powered UPS will be an indispensable option. Power outages can be caused by the following reasons:

  • Rain and precipitation;
  • strong wind;
  • Storm;
  • snow storm;
  • Emergency situation at the station;
  • Increasing the supply of electricity up to 6 kW;
  • Power surges in the network;
  • Noise with high frequency.

In such a situation, it is better to play it safe and purchase an uninterruptible power supply for country house. With this device, you can achieve the following goals:

  • Prevent the shutdown of the boiler system;
  • To reduce to zero the threat of stopping the operation of the pumping motors of the heating system;
  • Prevent the alarm system from stopping;
  • Continue to light up the house and maintain electric heating houses and cottages;
  • You can purchase an uninterruptible power supply for the home, equipped with a battery, supporting the performance of the refrigerator, TV, computer and equipment.

The UPS is an electronic device that provides uninterrupted, but short-term power supply for computer.

Reserve power supply of a country house remains topical issue Anytime. Many owners of private country houses are faced with situations where electricity suddenly disappears. The correct solution to this problem is to provide electricity to the house through the organization of backup power.

The device of the backup power system at home

An autonomous power supply system can ensure the smooth operation of all home equipment. In the event of a mains power failure, the backup power supply will be able to provide the power necessary for the operation of the devices. Power sources that provide power supply at home independent of the main network are different and presented in a wide variety.

To provide electricity to a private country house during an unplanned power outage, the following are often used:

  • inverters
  • Rechargeable batteries

The main function of modern sources of backup power supply at home is the implementation of an uninterrupted supply of electricity to the house.

Backup uninterruptible power supplies perform the following functions:

  • Power grid control
  • Surge filtering
  • Charging batteries

When the values ​​​​of the supply system have critical parameters or there is no electricity at all, the automation switches on the inverter, which takes current from the battery.

For generator engines you need:

  • Diesel fuel
  • Petrol
  • Natural and liquefied gas

The choice of equipment for autonomous power supply at home

The duration and quality of operation of the devices depends on the correctness of the selected equipment for the backup power supply system at home. The choice of a backup power source should be approached responsibly.

For a private house, the following devices are usually chosen:

  • Inverters. These devices are different and have their own characteristics. You need to know that an inverter with a sine wave at the output gives better electricity and can power all electrical appliances.
  • Batteries. You should know that the larger the battery capacity, the longer it will be possible to use the stored energy.

System of modern backup power supply

Modern backup uninterrupted power supply of a private house is possible with the help of solar panels. The battery system is an environmentally friendly way to get electrical energy to power the network. Solar cells are made up of photovoltaic modules that are covered with glass. This glass has a certain texture and allows you to absorb a lot of sunlight.

The wind generator can be used as a source of electricity only in areas where there is wind. Now this energy source is rarely used as a backup power supply for a country house due to unfavorable working conditions.

Gas-fired power plants for the supply of electricity

Gas generating power plants can operate on natural and liquefied gas. They are connected to the gas system. The cost of running these power supplies is usually much lower than other generators.

Gas generating power plants have:

  • Synchronous, asynchronous battery
  • Built-in automatic control system

Most often, power plants are designed for uninterrupted long-term operation in auto mode with the possibility of remote control. There are fewer harmful emissions from these devices.

Home gas generators

The gas generator is used to generate electrical energy of low power and can work for some time. These sources come with air and water cooling systems.

Petrol autonomous generator:

  • Has a compact size
  • Convenient for transportation
  • Suitable for home power supply

A gas generator is often used to supply power to private houses where there is no electricity supply from the main power grid for a short time. It is not suitable for long term use.

Diesel generator for power supply at home

Diesel generator is more powerful and depending on design features can be designed for long work.

It is supplied with:

  • Synchronous and asynchronous generator
  • Automatic control system

However diesel generator, like gasoline, emits harmful combustion products during operation and creates a lot of noise when generating electricity. This requires the adoption of various technical measures in order to reduce the adverse impact.

Do-it-yourself bespereboynik for a country house

In the power supply of a private house, power outages often occur. To ensure the autonomous operation of power supply, today many different devices and equipment are offered, but you can do alternative source power supply yourself, which is not too difficult.

You need to purchase an inverter and follow these steps:

  • To the side where the terminals are located, it is necessary to connect wires with a cross section of 4 square meters.
  • Then connect the charger cable to the terminal
  • After that, you can connect to the battery
  • Now everything is connected to the inverter

A large selection of backup power sources of various capacities allows you to choose the most optimal power supply system for use in country house. In order for the power grid to be reliable, it is necessary to take into account various nuances both when creating a project and during installation. In addition, it must be remembered that the system must be secure.

Maybe somewhere in Europe the supply of electricity is stable, there are no accidents on the power grid, and if they do, they are eliminated within a few minutes. And we live in Russia, and after a freezing rain, we can sit without electricity for three to four weeks, while teams of electricians will splice broken wires of power lines, and the Ministry of Emergency Situations will remove blockages and restore infrastructure.

And therefore, backup power supply at home in Russia is not a whim of the homeowner, but a vital necessity. In order to understand in which direction to dig, which backup power sources to choose, and what parameters they should have, it is necessary, first, to consider situations in which a typical owner may be without electricity.

When you may need backup power at home

According to the duration, the periods of power outages can be divided into 4 groups, each with its own characteristics:

  1. Micro - power outages due to breakdowns on the line or short-term voltage sag. These outages can last from a few seconds to several minutes. Then the power supply is restored, however, all consumers in the house can be turned off (the settings of the volatile memory in the devices are lost, the circulation pumps are turned off, and the control panels of the heat generators are also turned off).
  2. Short-term power outages due to a shutdown at the PTS (burnout of fusible links due to overloads on the line, due to short circuit on power lines 0.4 kVA, disconnection of the line for short-term work). Since the “calamity of the disaster” is local, service departments are not in a particular hurry to go to eliminate the accident. Shutdown period 1-12 hours.
  3. Medium-term power outages due to large accidents on power lines, due to an accident on high-voltage power lines, due to accidents initiated by third parties during work (cable damage during utility or gas services). They try to eliminate such accidents as quickly as possible, but due to the amount of work, the shutdown period is 12-24 hours.
  4. Long-term power outages due to natural disasters (massive damage to power lines and transformer substations during hurricane winds, freezing rain, flooding). All the forces of public utilities and the Ministry of Emergency Situations are rushed to eliminate such accidents, but due to the scale of the destruction and the large area of ​​​​work, the shutdown time can be up to 3-4 weeks.

Depending on which of the situations listed above is typical for your area of ​​​​residence, you should think about how to solve this issue and organize a backup power supply at home - choose a scheme and select devices.

Backup power supply at home - choose backup power sources

Consider for each period of power outage the most optimal backup sources of power supply:

  1. For micro - outages for a period of several seconds to several minutes to power devices vital to your home (burner and automation, circulation pump, systems smart House) the simplest uninterruptible power supply (UPS) with a standard battery (battery) is suitable, capable of holding the load according to the declared characteristics. The main requirement for a UPS is a pure sine (output voltage waveform) output for power. circulation pump and modern boiler automation.
  2. For short-term power outages of up to 12 hours, the best solution is a system that runs an uninterruptible power supply and several connected batteries of sufficient capacity to power your devices for up to 12 hours. This will require an uninterruptible power supply that can charge and be powered by external batteries. Get ready to increase the total capacity of your batteries up to 200-400 Ah.
  3. For a medium-term power outage for up to 24-48 hours, you will definitely need a generator - gasoline or diesel. Only a generator will be able to support your emergency system in working order for that period. Most of the time, the backup power supply at home is provided by a UPS with a battery, and once every 4-6 hours you start a gasoline generator and charge batteries, and also power everything offline. Such a backup power supply system has an undeniable plus - it works much more economically than constant power from a gas generator.
  4. In case of a long power outage, the backup power supply of the house comes from the same bundle “UPS plus battery plus generator”. However, it is worth thinking in advance about having enough fuel for the generator - gasoline or diesel fuel, depending on the type of generator.

Why not just run a generator during outages or just have a battery with an inverter?

It is possible so, but these schemes have disadvantages that the backup power supply system “UPS plus battery plus generator” lacks.

With shutdown periods of more than a day, a generator will still be required to maintain the backup power supply system “in good shape”.

If there is no UPS in the system, then during a shutdown, if the owner does not have time to react in time, the heating system on the TT boiler can go “out of order”. The combustion will continue in the furnace and the temperature without circulation of the coolant will increase.

There is a local overheating of the heating system, which, even with a safety group, will easily “boil” the boiler. The boiler and boiler piping will suffer if it is not made of metal.

As for a system without a generator, using only backup batteries, the life of such a system is limited by the capacity of the batteries. If you do not have a generator, then after the energy in the batteries is exhausted, you will have nothing to charge them with, and the vital devices in your house will be de-energized.

As for the generator, when used with a UPS that gives a "pure sine" output, you can use any - even with an approximation of a sinusoid, even with a meander.

The inverter generator will allow you to directly connect devices that require a "pure sine" at the output of the generator or UPS.

If you want to power other devices directly from the generator, you should choose an inverter generator. Its cost is not much different from the usual one, but the inverter generator produces a voltage in the form of a sinusoid at the output, which is “to the liking” of all modern electronic devices and.

Owners of cottages and summer cottages often face power failures. The backup power supply systems of a country house will help to solve this problem. They will protect high-tech equipment from work stoppage and breakdown, household appliances and any electrical appliances.

Backup power supplies for the cottage

Today, uninterruptible power supply stations on batteries, gasoline, wind and diesel generators are used as a backup power supply system for a country house.

Uninterruptible systems based on Bineos inverters are considered universal equipment. Such a backup power supply for the cottage works according to the “switch it on and forget it” scheme.

Advantages of batteries in home backup power supply

  • Provide a stable supply of electricity.
  • In the event of a power failure, they are automatically switched on in just 10 ms.
  • They work silently.
  • If desired, the owners of country houses can always connect additional batteries, which will increase the backup power for the cottage.
  • Does not require maintenance costs.
  • Differ in high reliability.
  • Do not allocate harmful substances so they can be installed anywhere.

Disadvantages of diesel and gasoline generators for home

Gasoline models have little power. As a result, the number of devices that such a unit can withstand is minimal. Another disadvantage is problems with engine overheating. Gasoline generators for a cottage have a short period of continuous operation.

Diesel devices are quite noisy, so their installation in the house and recreation areas is not recommended. They are expensive and have high maintenance costs. In winter, it is very difficult to start a diesel-powered generator, as the fuel thickens.

The Svet ON company offers backup power supply and uninterruptible power supply at home through an inverter and a battery, which is a more profitable and reliable purchase than a regular generator for a summer residence!