PHAT ENERGY approaches solar sizing from a cash-flow perspective first.  We leave you to consider other subjective factors (environmental, personal, etc) to reach the decision of how much larger a system you would want than the one that will bring you the greatest proportional savings.

Each utility has different rates and rebate programs. So, system sizing on a cost per kiloWatt (1kW=1000Watts) varies radically in Southern California - what makes sense in Los Angeles may make none in Glendale, and vice versa.  The cash flow analysis, which most energy users call the payback analysis, will show how you can save money with solar ,and in most cases immediately.

Please select your utility below.  Our software will analyse how solar can bring you better living.