Tuesday, October 13, 2009

On power plays

I'll follow up on the subject in more detail later. But for now, let's note that Erin has pointed out a possibility for new power generation in Saskatchewan which has been left out of the public discussion of the province's energy future to date - a particularly glaring omission considering that the only argument that ever seems to be mustered against hydro is "it would be nice, but we're already using as much as we can":
Despite hydroelectricity’s huge advantages, it garners little attention in political debates about future energy sources because most North American utilities have fully exploited available hydroelectric sites. Saskatchewan is exceptional because it only built a few small dams, but balked at larger projects.

In the 1970s, SaskPower proposed the Wintego Dam on the Churchill River. A public inquiry rejected the plan in order to preserve the natural area and traditional ways of life there.

These same issues would again confront large-scale hydroelectric development today. However, the historic decision to not dam the Churchill was made in a context of it being perfectly acceptable to just burn more fossil fuel instead. Today, I suspect that climate change and carbon pricing would far outweigh the original objections to the Wintego Dam.

Such a project would generate hundreds of megawatts. It would also enable a much larger expansion of wind power. Large-scale hydro provides the perfect balance for intermittent wind.

When the wind is blowing, SaskPower could close the hydro turbines and allow water to build up behind the dam. When the wind is not blowing, it could open the turbines to replace the lost electricity.

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