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If the PV-system contains an energy storage in the form of a batteries set, energy is stored in them. More often, however…

During winter months (January, December), due to the short daytime and small amount of light reaching at a small angle to the PV panels, their percentage share in the annual energy production is in the range of 5-7%. Assuming that PV panels will not be obscured by the snow cover throughout their winter, their snow … Read more

The most effective position of the set of PV panel the southern direction and the horizontal angle about 30-40 degrees. Any departure from these conditions results in less effective use of the PV set, and hence less the amount of electricity produced.

How we calculate the energy efficiency in the PV installation? As you can see on the attached graph. Read more.

We are pleased to inform you that the company Great Solar sp. Z o.o. received a prestigious award in the competition “.