PowerLab — Energy Planning Tools

What it does

PowerLab is a free, zero-database energy planning suite with transparent physical loss models: • Battery & UPS: Real runtime with chemistry DoD (LiFePO4 vs AGM) & inverter tare losses. • Solar PV: Seasonal tilt angles & NREL PVWatts V8 monthly solar output. • EVs: Level 1/2 & DC Fast Charge times with 80% SoC tapering & gas savings. • Home Energy: Appliance wattage audits & electric bills. 100% client-side, zero database tracking, works offline (PWA), and exports 1-page PDF spec sheets.

Deterministic, open energy planning calculators for solar panel output, battery runtime, wire voltage drop, EV charging speeds, and home electricity usage.

Transparent physical loss models with zero database tracking. Monthly kWh production with tilt & PVWatts physical loss modeling. Hourly, monthly & seasonal cooling costs by BTU & SEER2 rating. Exact backup duration in hours for home loads, LiFePO4 & AGM. Range decay modeling under 70+ mph highway speed & cold winter temps. Calculate daily appliance loads, panel counts & battery banks. Calculate charging speeds, costs & annual fuel savings vs gas. Find the optimal tilt angle for your latitude and roof pitch. Calculate running & starting surge watts for emergency backup. Calculate central AC, mini-split & window unit costs per hour and month. Calculate highway range drops from 75 mph speed &…from powelab.org

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