Solar panels work at full efficiency at around 25˚C. So even in winter they work fine. Even at lower temperatures, they typically perform well if sunshine is good. Colder regions, with their lesser issues of dust are also beneficial for solar generation. Remember, solar energy is generated by light falling on solar panels, not by heat. So really hot temperatures offer no benefit to users.

There are different solar panels manufactured by several Indian solar companies. You can choose the best panels as per your conveince. However, most of the vendors offer you limited brands out of which you can choose one. Some solar panels like those made by Adani Solar, Waaree Solar come at a higher price. Besides that there are several reputed solar panel makers like Premier, Goldi. RenewSys, Saatvik, Rayzon and others.