Uploaded November 2025 | Updated September 2026, 1 week ago
UPDATE: The main battery negative should be connected to battery 3. Diagram updated on the website.
Link to the diagram: cleversolarpower.com/24v-2000w-inverter-solar-diagram
Parts Used: 24V 100Ah Battery: amzn.to/3KgR9dm
100/30 MPPT Charge Controller: amzn.to/4ioFKF1
400W Solar panel: amzn.to/3MpdYw7
24V 2000W Inverter: amzn.to/3LZkQ3j
125A Molded DC Circuit Breaker: amzn.to/48383W5
50A MRBF Fuse: amzn.to/4ivvuuU
MRBF Terminal:amzn.to/3LTOcjE
Victron MEGA fuse busbar: amzn.to/48BjrbS
Negative busbar: amzn.to/48ebJTK
MEGA Fuses: amzn.to/4pBpwek
PV Cable: amzn.to/4ikfhs9
DC Disconnect Switch: amzn.to/4ilNasF
Welding cable: amzn.to/48nOg2x
🎁 Free Diagrams: cleversolarpower.com
📖 My Best-Selling book: cleversolarpower.com/off-grid-solar-power-simplified
PV Watts: pvwatts.nrel.gov
Tilt angle calculator: cleversolarpower.com/solar-panel-tilt-angle-calculator-summer-winter
You’ll learn a fast, repeatable method to size an off-grid solar system for a van, cabin, or backup setup. I’ll show you how to estimate daily energy use (including a fridge with a sensible duty cycle), turn your chosen days of autonomy into a clear energy target, pick the right system voltage so the inverter current stays reasonable, and convert that target into a practical battery capacity. We’ll also cover when to use a 24 to 12V converter for 12V DC loads on a 24V system.
You’ll see how to size the solar array to recharge the battery in a single good-sun day using PVWatts, translate that into a panel count, and select an MPPT. I’ll walk through checking controller voltage limits with a cold-weather Voc margin, choosing wire gauges to keep voltage drop under control on longer runs, and laying out a simple, reliable wiring path from panels to AC.
Finally, I’ll teach the protection strategy that keeps systems safe and serviceable: MRBF fuses on each battery, a main DC breaker, a PV disconnect.
UPDATE: The main battery negative should be connected to battery 3. Diagram updated on the website.
Link to the diagram: cleversolarpower.com/24v-2000w-inverter-solar-diagram
Parts Used: 24V 100Ah Battery: amzn.to/3KgR9dm
100/30 MPPT Charge Controller: amzn.to/4ioFKF1
400W Solar panel: amzn.to/3MpdYw7
24V 2000W Inverter: amzn.to/3LZkQ3j
125A Molded DC Circuit Breaker: amzn.to/48383W5
50A MRBF Fuse: amzn.to/4ivvuuU
MRBF Terminal:amzn.to/3LTOcjE
Victron MEGA fuse busbar: amzn.to/48BjrbS
Negative busbar: amzn.to/48ebJTK
MEGA Fuses: amzn.to/4pBpwek
PV Cable: amzn.to/4ikfhs9
DC Disconnect Switch: amzn.to/4ilNasF
Welding cable: amzn.to/48nOg2x
🎁 Free Diagrams: cleversolarpower.com
📖 My Best-Selling book: cleversolarpower.com/off-grid-solar-power-simplified
PV Watts: pvwatts.nrel.gov
Tilt angle calculator: cleversolarpower.com/solar-panel-tilt-angle-calculator-summer-winter
You’ll learn a fast, repeatable method to size an off-grid solar system for a van, cabin, or backup setup. I’ll show you how to estimate daily energy use (including a fridge with a sensible duty cycle), turn your chosen days of autonomy into a clear energy target, pick the right system voltage so the inverter current stays reasonable, and convert that target into a practical battery capacity. We’ll also cover when to use a 24 to 12V converter for 12V DC loads on a 24V system.
You’ll see how to size the solar array to recharge the battery in a single good-sun day using PVWatts, translate that into a panel count, and select an MPPT. I’ll walk through checking controller voltage limits with a cold-weather Voc margin, choosing wire gauges to keep voltage drop under control on longer runs, and laying out a simple, reliable wiring path from panels to AC.
Finally, I’ll teach the protection strategy that keeps systems safe and serviceable: MRBF fuses on each battery, a main DC breaker, a PV disconnect.
