john orfali has made low prices his selling point.ame.he says a typical system in the bay area might cost 20- thousand dollars.but with the added tariffs, expect to pay at least a thousand bucks more. praying may not help, but spreading the gospel of renewable energy might.john orfali/save a lot solar:"there is quite a lot concern about the tariffs, but the solar industry will survive because it's just a beautiful thing. it's a great thing getting free energy."and in the short-term, solar businesses could actually see a spike in sales as consumers look to lock in pre-tariff prices.but long-term, a cloudy future may be on the horizon.dan simon, cnn, pleasanton, california. ( marty ) some cities like san francisco ...offer