STEP 1: Project Requirements ✔ Analysis or estimate of monthly energy use (kWh) and costs for most recent 12 months ✔ Assessment of roof or property site, including dimensions, shading, obstructions, slope, tilt, azimuth direction toward Sun,local snow load, wind speed, and exposure category ✔ Evaluation of current electrical setup, including the location and size of circuit breaker box(s) and existing wires ✔ Review of local permit or utility requirements, including homeowner association HOA ✔ Owner requirements for aesthetics or location of the system
STEP 2: System Size and Layout ✔ Solar PV system sizing options (e.g. how many watts of solar are needed now and desired in the future) ✔ Estimated solar energy production scenarios (e.g. how many kWh or kilowatts hours will be produced using PVwatts) ✔ Solar array site plan, including the location of all components ✔ Design layout options and preliminary engineering for rooftop or ground mount configuration
STEP 3: Compare Solar Panel Systems ✔ Solar panel and inverter compatibility options ✔ Best price wholesale cost estimates for all equipment from your choice of manufacturers ✔ Easily compare systems side-by-side to evaluate price, performance, quality and compatibility ✔ Tax credit, rebate, and incentive summary ✔ Calculate expected payback, lifetime savings, and ROI
STEP 4: Final Plan ✔ Site plan, including the location of all components and setbacks ✔ Electrical specifications, single-line drawing - wiring diagram, with NEC required labels and calculations ✔ Engineering specifications for layout and mounting with all required calculations ✔ Product specifications for solar panels, inverters, mounting and electrical components ✔ Final purchase order and list of materials ✔ 10 to 20 page Solar PV System Permit Plan, printable on 11x17 paper ✔ OPTIONAL: Electrical or structural engineer review and stamps as required by building department or utility.
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