There are now hybrid systems, a cross between photovoltaic solar panels and solar thermal air collectors: aero voltaic systems. Thanks to these innovative systems that recover the heat produced by photovoltaic solar panels, you can generate electricity and supplement the heating of the house by connecting these panels to the CMV of the house.
What Price For A Solar Installation?
In this country, the price of domestic solar energy has dropped sharply in recent years with the massive production of solar panels. A particularly visible trend in photovoltaic power plants whose electricity production price is close to, or even lower, than the purchase price of electricity from your usual supplier. This situation is called “grid parity” and means that ‘it is better to consume the energy produced than to resell it to the network. In this country, network parity has really been achieved since 2016.
The price of solar thermal energy has been fairly stable for many years, due to the weak development of the sector. The price of an individual solar water heater also known by the acronym CESI is around 3500 to 4000 $. For a combined solar system heating and domestic hot water, it takes around 16,000 to 19,000 $, but the amount of energy produced is then much greater.
Heating and domestic hot water production systems, as well as aero voltaic solar systems, are eligible for the Energy Transition Tax Credit (CITE). To be able to claim it, make sure that your solar installation is carried out by a certified RGE craftsman.
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The lifespans of solar installations, whether photovoltaic or thermal, are at least 20 years, with parts to be replaced regularly circulators and expansion tanks for solar thermal systems, inverters and batteries for photovoltaic systems. But even taking this maintenance into account, production costs remain very competitive and overall cheaper than fossil fuels.
Where To Install Your Solar Power Plant?
The most classic choice is to install the solar panels on the roof of the house, but to obtain optimal performance, some precautions must be taken. It is necessary that the roof is well oriented to the South and that its slope is sufficient 45 to 65° for solar thermal, 20 to 40° for photovoltaic.
The Roof, Space For Installing Solar Panels
For photovoltaic installations, the horizon in front of the panels must also be perfectly clear to avoid “masks”, these shadows formed by obstacles between the panels and the sun. In fact, these installations are very sensitive to shadows, even seemingly harmless. A simple electric cable in front of the power plant or the shadow of a chimney will greatly degrade production. Conversely, thermal solar panels will tolerate point shade well. There are two options for lying on the roof: superimposed lying on the roof or integrated lying.
Installation integrated into the roof is not recommended for photovoltaic panels: insufficiently ventilated, the panels’ heat up a lot, which greatly degrades their electrical efficiency. On the other hand, the purchase price is more advantageous with an installation integrated into the roof: this option will therefore be preferred over the installation in superimposition if you wish to resell all of your solar electricity production.