Sizing Snapshot
Daily Energy
1607 Wh
Battery Bank
161.7 Ah
Solar Array
730 W
Inverter Baseline
1250 W
Solar pSEO Landing
60W Fridge + 1000W Microwave 12V Solar Battery Calculator (3 Sun Hours, 1-Day Backup)
Calculate daily Wh, LiFePO4 battery Ah, and solar panel watts for 12V off-grid systems using a 3h solar window and 1-day autonomy target.
Load Breakdown
| Appliance | Power | Daily Runtime | Wh/Day |
|---|---|---|---|
| Fridge (60W x 24h) | 60 W | 24.00 h | 1440 Wh |
| Microwave (1000W x 10m) | 1000 W | 0.17 h | 167 Wh |
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FAQ
Should I oversize panels or batteries first?
In low-sun conditions, panel oversizing usually improves daily recovery. In high-cloud windows, additional battery autonomy reduces outage risk.
Is LIFEPO4 efficient for this load profile?
Yes, the model applies chemistry-specific assumptions for DoD and charging to keep estimates closer to practical planning ranges.
Can this replace a full electrical audit?
Use this for planning and shortlist decisions, then validate with measured appliance duty cycles and local irradiance history.
12V solar setup: how many battery Ah do I need?
For this load profile, estimated LIFEPO4 bank sizing is 161.7 Ah at 12V with 1-day autonomy.