There is really no reason to even consider getting a solar energy system if you live in an area that rarely sees the sun. This does not mean that a less than reputable company will not try to sell you a solar system though. If your roof does not receive at least 6 hours of full sunlight per day, you should not consider solar power.
Your solar panels should be able to get a maximum amount of light form the sun. If you are set against hiring a professional to assist you, you can start tracking the sun's movements yourself to calculate the best positioning.
The Federal Investment Tax Credit (ITC) for solar energy is perhaps the best biggest incentive to go solar right now. Quite simply, you get a 30% tax credit off the …
Minimize the upfront costs of solar panels by considering a lease instead of a purchase. This spreads the payments over a long-term period into monthly installments, so you could actually start saving money immediately. Still, consider how long you will be in that building, as the long-term periods usually run a decade.