How to choose a generator for a summer residence: a gasoline unit against a diesel one

How to choose a generator for a summer residence: a gasoline unit against a diesel one

Do not hope that the state will soon please us with high-quality power supply - without interruptions and power surges. Permanent accidents on power lines are the cost of the native power grid, laid down during the electrification of Russia in the 1920s, according to the GOELRO plan. Apparently, the plans of the communist government did not include the electrification of the hinterland, which is why it often remained - without a centralized power supply to this day. How should a summer resident, spoiled by the benefits of technical progress, who simply refuse to function without electricity, act in the current conditions? Do not go back to the old-fashioned methods of lighting - torches, oil lamps and candles? The only correct solution is to create an autonomous power supply for your garden plot with the help of a generator, which can become both a permanent and an emergency source of energy. But how to choose this miracle of technology is a tricky question for many who came across terms such as volts and amps last time in high school. If you just want to glean useful information and do not know where to go - do not despair, we will help you quickly understand this seemingly overwhelming task.

What is a Fuel Electricity Generator?

The fuel generator of electricity is a kind of mini power plant that operates autonomously. What is required for its functioning? A small amount of fuel - gasoline, diesel fuel or gas, which is consumed within 0.5 liters for the production of 1 kW / hour, depending on the power of the generator. You simply pour the combustible mixture into the tank, from where it enters the internal combustion chamber. With the help of a spark, the mixture is ignited and the thermal energy that is released during the combustion process is converted into electricity.

If you are thinking about buying a generator, then first of all decide on what type of fuel it should work. This determines the technical parameters and features of the generator, such as: power, noise, mobility, durability, price, and others.

So, you need to choose among the generators that are most often used to supply electricity to homes, namely: gasoline, diesel and gas. Gas generators have not become as widespread as generators operating on gasoline and diesel fuel due to their high cost, bulkiness and the need to connect to the main gas supply system. Therefore, the choice of a generator for a house outside the city, by and large, comes down to making a decision - it will be a gasoline or diesel source of electricity.

Diesel generator: pros and cons

Before you start selecting a generator, decide which source of electricity you need - permanent or temporary (seasonal, emergency). If you operate a summer cottage all year round, then the best option would be a diesel generator - it is more adapted for continuous operation than a gasoline one. In addition, its safety factor is higher - a diesel unit will last you longer than a generator running on gasoline. And yet, the line of modifications of diesel generators includes more powerful models than gasoline power plants - this circumstance will allow you to connect more electrical appliances to a diesel unit.

When choosing a generator, determine whether you will use it seasonally or all year round and calculate the load - the power of the connected household appliances

Do not forget to take into account that diesel fuel is a cheaper type of fuel than gasoline, and if the house is constantly connected to the generator, a lot of combustible mixture will be needed. So the use of a gasoline generator can cost a pretty penny.

What are the negative aspects of using a diesel generator? First of all, diesel-fueled power supply units cost a decent amount - from 20 thousand rubles. up to 1 million and more. It is a little reassuring, though, that the initial capital investment in a diesel generator pays off quickly. Another inconvenience that you will encounter during the operation of a powerful diesel power plant is the high noise level of operation, which requires the allocation of a separate room with a well-thought-out system of sound insulation and forced ventilation.

The high noise of powerful diesel generators and the exhaust gases generated during their operation force this equipment to be placed outside the home

Thorough ventilation is also necessary in the case of using a gasoline generator - after all, do not forget that the principle of operation of these units is similar to the functioning of a car engine, and this is inevitably accompanied by the formation of exhaust gases. Only the products of combustion of diesel fuel are more caustic than those of gasoline and require more serious equipping of the system for removing volatile toxic substances.

A good option to help solve this problem is to install a diesel generator outside the home. But such a solution entails the need to equip a canopy and a locking system for equipment to protect against theft.

Diesel installations of high power have large dimensions and are produced in the form of stationary equipment

Gasoline generators can be started at minus 20 degrees Celsius, diesel generators - at least minus 5 degrees. A significant drawback of diesel generators is the difficulty of starting at low temperatures, which is extremely important for our climatic conditions. However, there are models of stationary diesel-powered units in a protective casing that allows you to place this equipment on the street and receive electricity regardless of cold weather.

In general, to summarize our reflections, the purchase of a diesel generator will be a reasonable decision if the cottage is used all year round or is equipped with a large number of electrical appliances.

Pros and cons of a gasoline generator

How to choose a generator if the summer cottage is used seasonally or if your site is connected to the central power grid and requires a backup power supply? With such input data, the most rational way to organize an autonomous power supply for a summer cottage will be a gasoline generator, which attracts with its low cost in the range from 3 to 50 thousand rubles, sometimes higher. It is the gasoline generator that will best cope with light loads in a small cottage that is not crammed with a wide range of electrical appliances.

Relatively low weight - up to 100 kg, compactness and mobility contribute to the fact that gasoline generators are most often used to supply power to suburban areas

The cost of a gasoline generator depends on the power of the unit, engine characteristics, gasoline consumption rate, and the manufacturing company. On average, the price of a diesel generator is twice the price of a gasoline equivalent of the same capacity.

If you need to perform any work on the site that requires an electrical connection, you can easily move the gasoline generator - as a rule, the mass of such a unit is small, it is quite compact and mobile. The insignificant level of noise produced by the gasoline generator allows it to be placed indoors and does not require additional sound insulation. So if you are faced with a dilemma of which generator to take for seasonal use, buy the petrol version - and you will not go wrong.

A gasoline generator is the best option for the seasonal supply of electricity to the dacha.

The noise level of gasoline generators is about 50 decibels, diesel generators - from 80 to 100 decibels.

If we talk about the generator as a backup source of electricity in case of a sudden outage of the centralized power supply, then a gasoline generator will also be the best choice. Having invested the minimum money in the purchase of a low-power gasoline generator, it will not be so offensive if you use it a few times during the summer season.

How to choose a unit with the required power?

If we talk about such an indicator of a generator as productivity, then the power range of gasoline generators ranges from 0.6 to 7 kW. Practice shows that to supply electricity to a small country house, an installation with a capacity of 1 kW is sufficient. Such a unit will pull modest lighting, a TV, a refrigerator, a small gas boiler and a low-power borehole pump. If the set of electrical appliances is wider, then a gasoline generator with a capacity of 3 kW or more may be needed. As for the manufacturers, the purchase of equipment on gasoline produced by Honda, Subaru, Kohler will provide maximum reliability.

When choosing a generator for power supply at home, pay attention to its power - it will depend on how many electrical appliances you can connect

Selecting the power of an electric generator, add up the rated power of all electrical appliances in your home and add an additional 30% - the power reserve for peak loads that occur when the refrigerator, washing machine, borehole pump, power tools and other powerful electrical appliances are turned on. Another important point to think about - the cost of 1 kW per hour generated by a 5 kW unit on gasoline will be about 8 rubles, on diesel - about 6 rubles, on gas - 4.5 rubles.

For country estates equipped with the maximum possible set of technical systems, a gasoline generator will not work. Therefore, the question arises, which diesel unit will behave better as an autonomous power plant? Based on experience, a power of about 10 kW will be enough for an advanced country house with a full "ammunition" of household appliances, a centrifugal pump and a gas boiler, a video surveillance system and automatic gates. Among the manufacturers of diesel power plants, the companies Yanmar, Deutz, Isuzu, Honda, Kohler compare favorably.

Gas generators have recently been gaining more and more popularity among owners of private houses. The power of this equipment varies from 0.8 to 24 kW and allows you to flexibly choose the installation that meets the needs of your summer cottage. Gas generators from Reg, Gazlux, Greenpower, Mirkon, Kohler, and Honda are always popular.

In the conditions of a summer residence, a compact and mobile electricity generator would be the best option - you can easily move it around the territory to perform various household tasks

Summarizing all of the above, when buying a generator, decide for what purpose you need it, estimate the power consumption and select the type of fuel on which the unit will operate.

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Choosing a generator for your home

Each user wants to purchase a good power plant at an affordable price that will last for many years and will not fail at the most inopportune moment. However, among the variety of different modifications, a lot of questions arise when buying, because outwardly all models are similar to each other.

To figure out how to choose the right generator for your home or summer cottage, you should turn to the opinions and advice of experts. Experienced specialists clearly delineate the area of ​​use of different types of installations, recommend taking into account the cost of maintenance and fuel, and also advise focusing on operating conditions.

Fuel types

The first sign by which the types of generators are divided is fuel. Modern mini-power plants run on petrol, diesel and gas.

The gasoline generator is equipped with a number of significant advantages:

  • the cost of such a device is the lowest (the price varies from 3 to 50 thousand rubles)
  • works quietly, the noise level is about 50 decibels. This means that you do not need to allocate a separate room for its installation.
  • small in size
  • mobile due to its low weight, it can be used not only in the country, but also when going out into the countryside
  • easy to operate, does not require preliminary preparation for work
  • able to work at low temperatures (start-up is possible at -20 ° C)

However, gas generators are not the most economical. So, the cost of 60 minutes of operation of such a station is 8 rubles.

Attention! In order for the gas station to function fully, it is necessary to periodically take breaks in its operation.

Diesel units are more suitable for cottages and country houses. Among their advantages:

  • are profitable to use (the cost of 60 minutes of operation of a 5 kW device is 6 rubles), diesel fuel is cheaper than gasoline.
  • able to work without interruption
  • are reliable, such systems will serve you for a long time
  • power is significantly higher than that of gasoline
  • according to the number of revolutions per minute, they are divided into 2 types: 1500 rpm and 3000 rpm.

Important! When using the appliance on a daily basis, it is better to purchase a unit with a low speed, as it will heat up less.

The disadvantages of a diesel substation include its noisy operation (noise level from 80 to 100 decibels). For placement, you must either purchase an additional casing, or place the device in a separate room with good sound insulation and ventilation system. Diesel fuel, when burned, will emit a more pungent odor than gasoline. Therefore, when placing such a generator, care must be taken to ensure that the combustion products are discharged into the street.

You can place it on the street, but in this case, you should take care of locks that will not allow you to steal equipment, as well as a shed. In addition, diesel is afraid of frost. If the temperature drops below -5 °, the fuel is likely to freeze. Diesel units can be bought from 20 thousand rubles.

Important! The smallest load on a diesel engine should be 40% of its power. A gasoline power plant has no such limitation.

The gas generator is the least common. For its operation, gas must be supplied to the site. Of course, you can fill it with cylinders, but this is not convenient. Their positive features are:

  • the greatest efficiency of work among all units (the cost of one hour of work will cost you 4.5 rubles)
  • they work quietly
  • power starts from about, 8 kW, reaches 24 kW.
  • power ranges from 0.6 to 7 kW. For heating small country houses, as a rule, 1 kW is enough.

At the same time, when choosing this type of station, keep in mind that only a highly qualified specialist can install it. This is due to the fact that it needs to be connected to the central gas system. The cost of such power plants starts from 45 thousand rubles.

There are also combined units. For example, gas-gasoline, gas-diesel. They generate energy from two types of fuel. When you switch the system from one type of fuel to another, you do not need to turn off the device. The cost of such stations is about the same as diesel ones, that is, about 40 thousand.

Any generator for a summer residence works on the same principle. You fill a small amount of fuel into the tank (approximately 0.5 liters for the generation of 1 kW / h), from the tank the hot mixture enters the combustion chamber. The spark ignites the mixture, and the resulting heat energy is converted into electricity.

Diesel Generator Benefits

As mentioned above, diesel-type generators are much more powerful than their competitors. It is worth saying that they are also more profitable in some respects, since diesel has always been cheaper than the same gasoline.Also, gasoline-type generators are characterized by increased fuel consumption. This feature makes it possible to feed both small areas and industrial enterprises.

As for the power characteristics, then a 15 kW generator will be just right for supplying premises no more than 50 square meters. Large cottages or country houses will require 100 kW from the generator, but large enterprises or factories simply cannot do without power over 200 kW. From all that has been said, we can conclude that diesel generators are universal and suitable in all respects and for any type of power supply.

Speaking about size and design, we can divide devices into several types:

  1. Mobile. As you can imagine, they are weaker, but much more convenient. They make it easy for you to replace a lot of wires and carriers. They are especially loved for their minimal noise performance. Therefore, they can be used precisely indoors.
  2. Stationary - more powerful and serious models. Their main disadvantage is noise. To avoid this problem, the generator can be packed in a casing or special container. By the way, you can find models that already have all these characteristics. As practice shows, without special equipment, stationary diesel generators at home will interfere a lot.

Which generator is better: diesel or gasoline?

If the generator is planned by you as a backup power source, you can safely choose a gasoline one. But if a power plant is needed for a longer, uninterrupted supply of energy, then it is advisable to choose a diesel generator.

Although diesel stations are more expensive than gasoline, gasoline costs end up being much higher than diesel costs. If you plan to run your diesel generator up to 500 hours a year, you can choose a high speed unit (3000 rpm). For more intensive use (construction) use more reliable - low speed generators (1500 rpm).

Diesel generators are for the most part very bulky and noisy, so it cannot be placed indoors.

A gasoline generator is quite suitable for a summer cottage, but it is worth considering some more important parameters.


Generators can be conventionally divided into low-power, medium-power and super-power. Small generators are used for outdoor recreation, and heavy-duty generators are used for uninterrupted power supply of a private house or work at a construction site. For use in the country, an average power station (3-5 kW) will be optimal. With such a generator, you can use a refrigerator and other electrical appliances, light your home and work with garden equipment.

A medium-power generator is designed for 5-8 hours of continuous operation. You can spend a full working day at your summer cottage without worrying about the electricity supply.

The device of the average gasoline generator

It is worth choosing the power of the generator based on the power of the electrical appliances used. If you plan to use a 1 kW grinder, then the power of the mini power plant must be at least 2 kW. The formula is:

Generator power = appliance power x 2

Protection and engine

The generator engine is 2-stroke and 4-stroke. The first runs on a mixture of oil and gasoline. It is important to observe the right proportions here, otherwise the unit may malfunction. If a 2-stroke engine is at rest for more than four months, starting it up for the first time will be quite difficult. A 4-stroke engine is more reliable in this respect. Oil and gasoline are used separately here, and the device can stand alone for up to a year.

By the type of protection, generators can be synchronous and asynchronous.

Synchronous generator - more common, it cannot be loaded more than the specified power.

Asynchronous generator on sale is not yet so widespread. Such power plants are resistant to overloads and short circuits.


If you or others don't like noise, get generators with good noise isolation. The Japanese company HONDA is already releasing such new items.

Gasoline generators are best suited for your summer cottage: they do not weigh a lot, they are compact and mobile

In high-quality equipment, there is a panel that will tell you when you need to add gasoline or reduce the load. Generators equipped with an autostart button (A) are more convenient to control, since a manual starter can malfunction and require several attempts to start.

French, German, British and domestic mini power plants are popular on the market today. It is reasonable to opt for those manufacturers who are engaged only in the production of generators. For summer cottages, we can recommend the following models: SDMO (synchronous), Geko (asynchronous, more powerful), Sadko GPS-2200 or GPS-2800, HONDA EP 500CX (good noise insulation), SKAT UGV and others.

How much is a generator for a summer residence

The price of a generator depends on the brand of the model, its technical characteristics, the availability of options:

1. For a device with a capacity of 2 to 2.5 kW, using diesel fuel as fuel, you will have to pay from 40 to 75 thousand rubles.

2. Similar gas equipment will cost from 18 to 40 thousand rubles.

3. The price of a gas generator with the same capacity is from 10 to 35 thousand rubles.

The price for equipment of various configurations with a capacity of about 5 kW varies depending on the type of fuel:

1. Gasoline - from 22 to 450 thousand rubles.

2. Diesel - from 48 to 760 thousand rubles.

3. Gas - from 40 to 500 thousand rubles.

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