kW - kilowatt is the unit usually used to express the generation or consumption of power (including electricity). A small one bar electric heater consumes 1kW.
kWh - kilowatt hour is a unit of energy equivalent to one kilowatt of power generated or consumed for one hour. It is the billing unit used by energy suppliers.
kWp - kilowatt peak measures of the peak performance, noon on a sunny day in summer, of a PV solar energy system.
Why did we install PV Solar?
Back in July 2010 I was at our local shopping centre when I came across a kiosk where they were trying to sell photovoltaic solar electricity systems (PV Solar). I became interested and decided to investigate further. After discussing it with family and friends, a great deal of research, and getting several quotations we decided to get a system installed.
The most useful source of information was the Energy Savings Trust.
What system did we install?
We installed a 21 panel PV system with a capacity of 3.78 kwp. The panels were by Romag, the inverter by Fronius and it cost £16,075. It was installed on an unshaded south facing roof with a 38º pitch.
We were quoted that this 3.78 kWp PV solar system would generate 3405 kWh per year. This would generate income/savings as follows:
|© J. Ansell 2015|