* Posts by CB1

1 publicly visible post • joined 3 May 2008

Shell pulls out of Thames Estuary mega-windfarm

CB1
Alien

Solutions already exist for Wind's intermittent power

Wake up, people!

Lot of people here are calling Wind ureliable and unsuitable due the intermittent nature of its source. But people have found ways around this problem. Look at what Hawaii is doing (heco.com).

Combining power electronics and storage, it is an effective shock absorber for the "rough" power source wind energy is. Even helps regulate reactive power and increase the life of wind turbines by reducing stress on transmission systems used in these turbines.

The Power electronics + fast storage (e.g. ultracapacitors) handles fluctuations between subsecond-to-few-minutes timeframe - can give all those longer-term solutions to power up, e.g. the 20sec generator rampup for a pumped hyrdo storage power station.

And remember that wind-movements in the next 2-3 hour range can be forecast very accurately these days.

Connect windfarms across more than a few locations, and the aggregate power from these turns out to be more stable anyways (the wind is usually blowing 'Somewhere' if not 'right here').

Any one non-fossil fuel may never have the share enjoyed by Oil+Gas+Coal, but Wind, Solar (in various forms) and Nuclear will together have to strat providing a majority of our energy within 2-3 decades

... if we don't start any new wars of convenience and kill ourselves by then!