Self-sufficiency – at what price?
From the page:
Many householders, says the government, could be self-sufficient in power from renewable sources and still have enough to sell on to public utility firms.
But figures in a government consultation document claim a typical solar panel system, covering 40-50% of annual electricity needs, would take 120 years to save what was paid for it. A small wind turbine, sufficient to meet all a house’s needs, would save enough to pay for itself in 29 years, says the document.
…………rather off-putting, but these figures don’t seem to take into account the government grants which reduce installation costs. In addition, people I know of who generate their own electricity claim that personal wind turbines can pay for themselves in about 6 years (1.5kW turbine). They reckon solar panels take 20 years or more to pay for themselves though and aren’t so satisfied with them. Even with grants, however, the costs are well beyond what I could afford – so as much as I like the idea of micro-generation at home I doubt I’ll ever be able to set it up.
More from the page:
Not everyone thinks the government’s micro-generation of electricity at individual house-level theory is on target.
Phil Horton of the Centre for Alternative Technology said generating at household level – apart from solar water heating – was not as efficient as systems covering a housing estate or small village.
……….. perhaps something along the lines of this Welsh community wind turbine?
Renewable Power Association
Centre for Alternative Technology