Heating/cooling is the large expense, whether tha be heating/cooling air/ water/ food its the big consumer generally
Lighting is a furphy, 100W light globe that's turned on for 10 hours a day consumes 1kw/hr of electrickery, people go overboard on low energy lighting with a terrible return on investment.....although I actually do like the SAL led downlights enough to fit them into my own home
The simple fact is, to abolish your service charges with PV at .08c KW/Hr, the return on your investment is atrocious, although it can be done
Personally I reckon $1.20/day for the priveledge of mains power is pretty good, but having spent enough time in a 3rd world country, your perception does change about "first world problems"
Heating and cooling, how do you heat? how well insulated? take advantage of any benefits of the sun, windows etc...do you manage your house well? utelise openings/shading etc to its full advantage, is there things you could do to improve these things?
State government owned the power industry 20 years ago and gave you a gold star for being a large consumer i.e. slab heating, multi phast elec heater etc......times have changed a little since then
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