Maximising Home Energy Efficiency: A Case Study with a 6.9KW Solar PV System

Discover how this system aims to generate 6162 KWh per annum, significantly reducing grid reliance with a payback period of just over 7 years, making it a lucrative long-term investment.

Hugh was looking to make his home more energy efficient using Solar PV. Our technical lead, Morten, designed a 6.9KW solar array using 460-watt JA Solar Panels. In addition, we specified a 5KW inverter along with 6.4KWh of battery storage. Due to some concerns over shading, we recommended and installed 15 individual TIGO optimisers. During the specification stage, we ascertained our customer would use an estimated 5699 KWh per annum and therefore, we recommended a 6.9KW Solar PV array to generate an estimated 6162 KWh per annum, reducing grid import to an estimated 1150 KWh per annum. The system should therefore provide a payback period of just over 7 years, leaving the remaining lifespan of the equipment as pure cashflow positive profit.

Solar power inverter and battery storage

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