Builders in Arizona are being encouraged to install solar panels with an incentive program from Arizona Public Service (APS). The program offers to pay builders $3 per watt for solar systems and 75 cents per watt for solar hot water heaters, the same rate the utility pays homeowners for retrofits. It's hoped the incentive program will allow APS to meet renewable energy standards that require utilities to receive 15 percent of their power from renewable sources by 2025. Solar panels in Arizona? It almost makes too much sense.