The company I got my quote from refused to connect up the EPS on the GivEnergy battery as they said it could potentially cause problems. They wouldn’t even attach a single 3pin socket to the battery for use during a power cut
Given that the motivation for many contemplating solar/battery is to save money, then payback time has to be part of the equation.
Accountants always take into account full cost of kit including capital cost, running costs, depreciation and income generated. Why would it be different in a home...
I did some hard thinking about solar + battery or battery only. My usage is a bit less than yours and I was quoted for a 3.3 kWh solar system plus 5 kWh battery / and the battery only quote was for a 9.5kwh battery.
I calculated my payback time wold be anywhere between 8-12 years.
The panels...
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