Ummmm - because we don't have enough "cheap, renewable energy". It is a myth - plain and simple. I do this sh...t for a living. Short of going the Chinese way and "bugger the environment - we will dam up and use all of our rivers for Hydro" it will stay that way. Wind power is too fickle and like solar, needs to be used in conjunction with Hydro to work - the Hydro being used as an accumulator or battery for storage during periods of no wing or in darkness - work it out. The only time Hydro energy is cheap nowadays is during periods of "extreme weather events" when the water "has to be" passed down the rivers for flooding control. This drives down the spot-price of power as it is also usually accompanied by more moderate temperatures which lower the demand. You have to realize that the electrical generation industry is profit driven - the prices are manipulated by withholding generation offers of cheap power until the spot-price is driven up. This has the effect of pushing up our average annual cost per MWH and likewise our power bill. We do not have cheap power in NZ! Until cheap storage devices are available to the home consumer, solar will continue to be sold out the gate at less than the industry spot-price and we will continue to be screwed. The only way to beat the system is to buy smart appliances and cleverly use them to take best use of home-solar generation. It is called TOU or time of use. We should be able to get cheaper power overnight when the spot-prices are lower by using smart appliances and be rewarded by cheaper power bills but where is the profit in that? We have the ability to even control our dishwashers, clothes-dryers, washing machines, hot-water cylinders etc based on price-point usage via computers/internet etc driving our appliances but it will never happen - no money in that. solar at the moment is the only way we as a consumer can "stick it to the man" by more clever use of our home generation. Retired people are in a really good position to do this.
Derb. 2017 Colorado LTZ 4 x 4 Auto. 2014 Southern Star 720 and 1980 Zephette 340. 2 x 100 a/h AGM. 3 x 150w solar. Ctek D250S-Dual controller/MXS15 charger.172L fresh/grey. Diesel heat. RMD8555 fridge.