Earth Notes: A Note On Renewable Energy: Solar/Wind/Storage

Would you rather live next to a wind farm or a fossil or nuclear power plant?

A reply that I sent to a friend's email to me in August 2007 on solar vs wind:

...but I know the issues were the storage ... Given the choice I would rather live next to a wind farm than a fossil or nuclear power plant - but in essence there are issues with them - and whilst I used to admire them when I drove past them in Cornwall, they definitely have quite an impact on the landscape. Solar energy seems by far the best way forward - as it is a continuous source of energy that is very un-utilised.

The problem with solar in northern climes is that its peak availability does not coincide with peak demand, eg at night and in the winter, making the storage problem worse. In (say) Spain or Texas when the PV can be used in part to run airconditioning and thus shave peak load then storage is not such an issue.

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Wind power in the UK for example has the virtue of peaking in the winter months when solar PV is poor (less than 25% of the available power each day compared to mid-summer) so any RE portfolio should consider a mix.

In principle the efficient thing to do in (say) London is use solar with a grid tie and use the Grid as 'storage' (eg they can burn less gas for example) when you are generating excess power. But the minimum worthwhile grid-tied system is bigger than I need, expensive to install, and I don't have an unobstructed south-facing roof. Wind power is NOT very effective in built-up areas for various reasons, and I'd only be doing it as a test and top-up.

I think that the UK building codes should possibly insist on all new build and refurb except in special cases having grid-tie PV with the power companies forced to buy the power at at least net rates or higher. Germany has been doing part of that and now has a significant chunk of solar on their grid as a consequence. They may not have managed it well, and are now pulling back a bit, but it terms of energy security (can you say 'Putin'?) and grid stability I'm sure that it's a good thing!

And I think that Denmark now has >20% of its grid power from wind, so it can be done too!

Anyway, I think wind turbines are as pretty as Dutch windmills and other elegant engineering works, so I suspect that the impact is more shock than lasting harm.