Help Center
Formulas, guides and FAQ for solar engineers in Africa and Europe.
PV Calculations
Depth of Discharge (DoD) by battery technology
3 min
African thermal correction
4 min
Usage profiles: day, night, continuous
5 min
Choosing system voltage (12V / 24V / 48V)
3 min
Calculating autonomy and battery capacity
4 min
Energy balance - is the PV surplus enough for the night?
5 min
NASA POWER irradiation data
3 min
Solar pumping — complete sizing guide
7 min
What If simulator - test other scenarios
3 min
Appliance priority — Critical, Essential, Comfort
3 min
Surge factor — motor startup current
2 min
Choosing between Off-Grid, Backup and Hybrid
4 min
How outage hours affect system sizing
3 min
Calculating ROI for each solar plan
4 min