While putting together notes for my talks over the weekend, I noticed something interesting. The amount of electricity we saved each day by converting 10 halogen downlights to CFLs (4 kWh) is about equal to the amount of electricity we are generating each day (on average) since installing a 1 kW grid-connect solar power system.
The difference is, the 10x GU10 conversion kits and CFL lamps cost us about $120, whereas the solar power system, after government rebates ($8000) and renewable energy certificates (RECs) (~$1500), cost us $2675.
Similarly, replacing our clunky old second fridge with a chest fridge cost $140, and saves us about 2 kWh per day.
In most cases it’s way, way cheaper to reduce your power consumption than it is to generate the equivalent amount of additional power.
And that’s why people living off-grid, generating their own power, are happy to pay big bucks for super-efficient appliances like the Vestfrost range of fridges and freezers.