Residential solar keeps getting bigger in Washington. This goes for both the number of systems being installed AND the size of those systems. People are beginning to realize the power of investing in personal, on-site energy production. They’re putting their money on the roof and in the back yard to help lower expenses and bring in incentive revenue for decades to come. Here’s a 20kW solar array we just finished in Goldendale, WA using SolarWorld modules and Power-One inverters.