Size MPPT and PWM solar charge controllers (Amps and Volts), string Voc temperature adjustments, and array wattage matching.

Calculate greenhouse gas (CO2) emissions eliminated by solar energy in metric tons, EPA equivalencies (trees planted, passenger vehicle miles avoided).

Calculate National Electrical Code (NEC Table 1 Chapter 9) conduit fill percentages, trade size minimums (EMT, PVC, FMC), and conductor ampacity deratings.

Size solar circuit breakers, AC disconnect switches, overcurrent protection devices (OCPD), and check National Electrical Code (NEC 705.12) 120% busbar rules.

Size lithium LiFePO4 solar batteries for home energy storage, critical backup circuits, days of autonomy, and peak time-of-use (TOU) arbitrage.

Calculate AC-coupled vs DC-coupled solar battery round-trip efficiency (RTE), electrochemical cell losses, inverter rectification penalties, and lifetime loss cost.

Calculate battery charge and discharge current (Amps) from C-rate, time to cut-off voltage, and multi-year cycle life degradation based on Depth of Discharge (DoD).

Calculate solar azimuth angle, solar elevation/zenith angle, solar noon time, and day length for any latitude and day of the year using astronomical algorithms.

Calculate solar array partial shading power losses, multi-peak P-V curves, global vs local MPPT peaks, bypass diode conduction, and hot-spot heating risk.

Calculate optimal solar panel tilt angle and azimuth orientation by latitude, seasonal summer/winter adjustments, and solar elevation noon angles.