Large Domestic System. Yate.

Romag Solar Panels with SMA Inverter

For this 3.6kW system, we used 18 Romag 200W panels with an SMA Sunny Boy 3000 transformerless inverter.

A year after installation, this system had generated 3792kWh (compared to our SAP estimate of 3092kWh). That represents not only an uplift of 22.6%, but a return on investment of 12.2% – excluding the savings in electricity bills.