For commercial spaces, solar can be a game changer in their energy usage profile and expense on electricity. Most of the utility companies have kept the commercial electricity tariffs much higher than the residential and industrial rates, in order to cross subsidise the residential segment. Hence the cost of solar energy has already reached grid parity for commercial buildings. We help them in designing captive solar PV systems either on the rooftops or within the company premises so as to offset huge electricity bills. PV systems can be a huge relief from expenses on diesel generators.