Learn Off-Grid Solar
Straightforward, engineering-grounded guides to help you understand solar, batteries, inverters, system sizing, and off-grid design—without unnecessary complexity.
Start with the fundamentals
Off-Grid Edition – How Many Solar Panels Do I Need?
Learn how your energy use and available sunlight determine the solar array size your off-grid system needs.
Size Your Off-Grid Battery Bank
Learn how energy use, autonomy, battery capacity, and depth of discharge determine the battery bank your system needs.
How to Size Your Solar System Inverter
Learn how continuous loads, peak demand, and surge requirements determine the right inverter size.
Explore by Topic
Find practical guides for each part of your off-grid power system.
Panel sizing, array configuration, series and parallel connections, voltage, current, and solar production.
Explore Topic →
Battery sizing, capacity, autonomy, depth of discharge, LiFePO4 batteries, and battery-bank configuration.
Explore Topic →
Inverter sizing, continuous and surge loads, efficiency, and matching AC power equipment to your system.
Explore Topic →
MPPT and PWM controllers, voltage and current limits, wiring, protection, and electrical design.
Explore Topic →
Bring the pieces together—from estimating loads to sizing a complete off-grid power system.
Explore Topic →
Portable power stations, backup power, generators, and practical solutions for outages and emergencies.
Explore Topic →
Ready to Design Your Off-Grid System?
Put what you’ve learned into practice. Use the Evergreen Off-Grid System Designer to estimate your loads, size your solar array and battery bank, and build a system around real equipment.