Calculate maximum panel capacity for defined areas. Determine system size in kW based on available acreage or square footage with spacing requirements.

Determine optimal string length based on inverter MPPT voltage windows. Calculate temperature-corrected voltage limits for NEC compliance.

Calculate appropriate conductor sizes with ampacity derating, OCPD sizing, temperature correction factors, and conduit fill requirements.

Analyze DC and AC circuit voltage drop. Calculate losses for single-phase and three-phase systems over distance with conductor resistance.

Calculate annual energy production using NREL solar resource data. Factor in system losses, tilt, azimuth, and geographic location.

Calculate optimal row spacing to minimize inter-row shading. Determine setback distances based on solar access angles and site latitude.

Size battery banks for off-grid and backup systems. Calculate amp-hours needed based on daily load, autonomy days, and depth of discharge.

Determine minimum conduit size based on conductor fill percentage. Calculate conduit requirements per NEC Chapter 9 Table 4 and Table 5.

Calculate equipment grounding conductor sizes. Ensure proper grounding for overcurrent protection device ratings.

Determine expansion fitting spacing for rooftop conduit runs. Account for thermal expansion coefficients and temperature extremes.

Calculate payback period, NPV, and IRR for solar investments. Factor in incentives, utility rates, degradation, and financing costs.