Solar panels for houses: the cost and feasibility of installing

Alternative energy sources are actively capture the consumer market. Ten years ago, most people can not imagine the possibility of acquiring such engineering developments as wind power or station operating on solar batteries. Now it becomes possible. Solar panels for houses: the cost, the cost of installation and maintenance - a cost-effective solution today.

General characteristics and the ability to buy solar panels for private homes

If we talk about solar panels in technical terms, we must understand that we are talking about photovoltaic power systems (PSE). The main purpose of such devices - is the conversion of sunlight into electrical energy based on the physical law of the photoelectric effect. About two hundred years, the process of improvement of solar plants for electricity generation. Currently, the engineering thought has achieved significant results in the development of photovoltaic equipment, particularly in terms of efficiency - from 1 to 46% (percentage of the converted solar energy).

The modern market of solar power systems can be considered sufficiently formed, so as it allows you to make the choice of goods from a considerable number of suggestions of a very large market segment. To answer the most frequently asked question is, how much are solar panels for a private home, you need to understand the technology and design features of PSE. Structuring of the proposed equipment market requires three main categories of solar systems based on their functionality, design and technical features.

The first category PSE are autonomous systems that are not connected to the main electricity grid. These systems work in their own circuit network for direct power of the connected equipment. Maximum efficiency is achieved by the presence of complete accumulating devices (batteries), which allows the use of the accumulated energy in case of falling sunlight intensity (i.e., reduced generated power) and in the case the moments of the power consumption exceeding produced.

Also can be considered a stand-alone kit is installed solar panels for home use direct sources of the load without the battery cells.

The second category is open PSE. In its configuration data systems do not have batteries and are connected to the main power supply through a dedicated inverter. If the power consumption does not exceed the value generated by the main network is down. Otherwise, PSE is disabled and consumption is produced from the core network. Such systems are very reliable, less expensive, but if there is no power supply from the main network, and solar station is not working.

The third category are combined PSE. They represent the combined size of the first and second category. This allows you to have in its functional quality extra - extra generated or stored electrical energy can be transmitted to the main network and have commercial value.

This category is the most expensive because it uses in its configuration of complex network photovoltaic inverters and battery chargers.

Useful advice! For uninterrupted power supply mode in case of a simultaneous termination of the overall network and the impact of adverse weather conditions, it is necessary to have a backup power source. As such a source can be a small (2-5 kW) generator operating on gasoline or diesel fuel.

Solar Price for the house: the cost of the kit

Resolve issues saving energy costs through the installation of solar power plants is necessary in full information about the conditions of prices for the whole kit and the upcoming costs of installation and operation. A frequent question is, how much is a solar panel for home, has no clear answer, since so many factors affect the pricing.

An established price of the main PSE element (solar cell), an average of a minimum (but also a minimum quality) about 50-60 rubles. produced 1W of power. Consequently, the price of solar panels for a private house with capacity of 100 and 200 W will be in the amount of 6,000 and 12,000 rubles. respectively.

The station set depends on its category and power. It may include charge controller, battery station, inverter and connecting equipment. When selecting, for example, set the first category and the rated power of about 2 kW (2000 W), the price of a set of solar panels for the house will be from 120 thousand. rub. and higher.

And to compare all expended capital necessary to the economic effects resulting from the difference in the cost of 1 kW / h centralized network and value created by PSE.

The most "fresh" solar market statistics show that the ratio of the price per unit of electricity is 8.8 times. This means that the power generated by the solar station 8.8 times cheaper electric power supplied through a common network, taken in equal equivalent.

An important criterion in the direction of use is also a factor PSE possible to ensure smooth operation of automation in heating systems, security and fire alarm monitoring. To the list may include computer home network and a group of electronic control and measurement sensors.

The use and the price of solar panels for the home

Great choice of solar cells provides an opportunity to use them in a diverse, quality and use, as if you want to buy solar panels for home price today already allows to do it to the general population. Knowing their main characteristics such as the effluent standard voltage (12, 24V and above), and parameters generated rated power, you can use them locally, without having to buy all kit. In the market the average cost of solar panels for private homes varies from 60 rubles. produced per 1 kW of electric power.

If you want to use a light bulb in a dark room voltage of 12V and power of 25 watts, it is sufficient buy and connect it directly to a solar cell similar to the parameters and it will cost no more than 2000 rubles. and wasting electricity bulb 60-75 watts in some komorke will not have to. You can connect a small sump pump for the daily watering of any landscape area power of 200 W and power 24V. At a cost of 11000-12000 rubles. available throughout the spring and summer and more than 10 years to have an independent irrigation system.

The required set of solar panels for the garden

If we consider the question of whether the use of solar systems for the suburban area, power supply stability factors should be considered in village, its level of sun exposure (time spent in direct sunlight), the required power and electrification of the risk factor into the empty theft from owners season. The best option - a permanent installation PSE first category.

Considering the low power consumption of cottages, we provide 100% replacement of centralized power in the autonomous and cheap. In another case, when the permanent installation of the solar station for whatever criteria is not justified, you can use the level crossing set of quick assembly.

Note!in the use of PSE experts have calculated and found that solar panels strategically and economically viable for use in the summer in private homes and cottages ranging from 50 to 300 m², designed for a family of up to four person.

The use of solar energy to provide heat

Along with the use of solar energy to produce electric current, and there are not less common device for conversion of sunlight energy into thermal energy. Such units are called solar collectors and provide heating elements for heating and producing hot water. Regardless of the boilers in heating systems and domestic hot water circuits, their combination with Highly efficient solar collectors can save up to 36% of the costs for heating and DHW water.

In the embodiment of the solar collector hot commodity discharge is a rectangular plate with dimensions of approximately 1x2 m and up to 100 mm thick. The main difference is the sizes of said collector thermal capacity flow, i.e. the amount of heat which can be transferred to any heat transfer fluid through the contact surface. Alternatively, this parameter is called the coefficient of heat loss, and which has the dimension W / m × ° K, i.e., heat transmitted through the area for receiving liquid temperature increase. Modern designs of solar collectors have indicators (one plate) of the thermal power of 1.2 to 5 W / m × ° K.

Prices of solar collectors for heating homes

The main element of the system (heating plant) is a solar panel. Depending on its required power can be purchased on the market at a price of 18-20 thousand. rub. for 1 m² of useful area and the average coefficient of heat loss is 2.5-2.7 W / m × ° K.

For example, European quality panel with dimensions 1,9h1,8 m (area 3.5 m²) and a factor of 2.7 would cost about 70 thousand. rub.

Given the competitive Chinese-made analogue may be cheaper to 30-55%, while the domestic prototype 10-25%.

If we talk about the proper components, which includes: a tank battery, pump and equipment, while the average market price of such a plant will be 160-170 thousand. rub. Set of domestic production with the same parameters will cost 100-120 thousand. rub.

Useful advice! Joint use of solar collectors with solar panels with proper choice of parameters allows to reduce the costs of thermal energy to hot water to 61%.

Overview of manufacturers. Solar panels for the house: cost of the set and one panel

Solar technologies like alternative energy sources confidently occupied leading positions in the market. A large number of manufacturers to actively compete by offering more and more new innovations. Leading place in sales top 15 countries in solar power plants and their components is China, with more than 50%.

The most popular brands are Exmork, RENE SOLA, LDK, Helios House, Suntech, JA Solar, and others.

European manufacturers with a market volume of about 25% represent companies such as German AXITEC GmbH, Solarworld and Viessmann Group and Norway's Renewable Energy Corporation and others.

Japan, Korea and Taiwan (15%) represent the company Kyocera, Sharp, Sanyo, Hanwha Solar One and Motech.

Domestic production is represented by companies such as Hevel Solar and SCI. American manufacturer - the company First Solar.

Buy solar panels can be relatively inexpensive for the home. If we take the example of a consumer solar panel 200 watt, the price range will be between:

The country of manufacture	Solar panels 200 W Price, rubles.	Price for solar station 2 kW rubles.
China	8000-16000	120000-160000
Europe	15000-17000	190000-250000
Asia	10000-15000	140000-190000
Russia	12000-20000	104000-240000
USA	27000	380000

To see the difference in pricing policies, mainly depending on the power rating, take for example the solar power for the house 5 kW, the price of which in the Chinese version will be:

• about 300 thousand. rub. (solar battery);
• about 420 thousand. rub. (Whole set).

Quality sales and prospects for the development of solar technologies

The modern market and sales techniques do not leave the buyer unambiguous assessment. Especially high-tech equipment and devices. This also applies to the market for the sale of solar power systems. Since the technology itself is very energy-intensive, the purchase solar panels, if desired, or buy a solar power plant for home price in both cases will be to call for a detailed analysis not only on the technical and technological features, but also on economic justifications.

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An important factor when buying a PSE is the quality of sales services. If the price of a product, we will only understand its face value voucher, it is a cost we can under Article agree to understand also all kinds of overhead costs, vendor reliability and product, as well as time and cost moral strength.

Thus, the cost of solar panels for the home or the cost of a set of solar power for the house of the same products from different vendors may differ materially. The reason may be as follows:

• preliminary engineering calculation the seller does not hold. So, you need to appeal to a different location. And this time, and transport;
• design work does not carry out the seller. We'll have to spend extra time to use and transport;

• some components from seller. You will again have to search for a product in another store, which can be expensive, and again will require additional time and transport;
• installation teams for the installation of equipment at the seller is not there. Again, the cost of time;
• the seller logistics is not engaged. So, it is possible that when all is complete, but one important element will have to wait for an unknown number of days. And so on.

Useful advice!Choose a seller with a full package of services ranging from assistance in design, quality equipment to provide professional installers to warranty service.

The future of alternative energy sources

The rapid penetration into our lives new technologies using alternative sources of electricity and heat directs our choices are increasingly acquiring solar power stations, solar collectors (heating plant), household wind- and hydropower, and apply heat pumps and various generators. So in recent years produced a considerable experience in the application in many areas of the photo management electrical power supply systems. It relates to the use of solar cells and solar panels in a residential area: in private homes and cottages.

In conclusion, we can say that the market for solar technology currently offers a wide range of different equipment. And most importantly, given the reasonable cost of sets of solar panels for the home, reviews of their high quality and long term reliable operation, it is possible to conclude that the use of this equipment becomes more feasible and allows you to participate in large-scale environmental projects and programs.