Workshops / small factories · 2023
Metal Workshop, Kurunegala
Kurunegala, Sri Lanka
Metal Workshop, Kurunegala — finished install
- Array
- 15 kW
- Bank
- 25 kWh
- Inverter
- 20 kW
- Commissioned
- 2023
01
The problem
Almost all load falls between 08:00 and 17:00, but the welding bay draws hard and briefly — exactly the shape that trips an undersized inverter.
02
What we built
Day-heavy sizing: a large 15 kW array with a lean 25 kWh bank held mainly for surge support, and a 20 kW inverter selected on surge rating rather than continuous.
03
The result
The workshop runs the full day on solar with the bank acting as a buffer. Two years in, measured capacity fade on the bank is under 4%.
Racking / bank detail
Commissioning
Bill of materials
- Modules
- 26 × 580 W
- Bank
- 5 × 5 kWh @ 48 V
- Inverter
- 20 kW hybrid
- Racking
- Sheet-roof rail, wind-rated
- Monitoring
- Telemetry + surge logging