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Hooray for the energy market being disrupted. It's a sign of the success of government subsidies to renewable power. Obviously adjustments are required as the d
by OliverJones 7y ago
Hooray for the energy market being disrupted. It's a sign of the success of government subsidies to renewable power. Obviously adjustments are required as the disruption proceeds. Hopefully governments and private concerns in Europe can cooperate to make workable new rules and tariffs. I'm not so hopeful in the US because our federal government is the servant of big oil.
Here in Massachusetts USA I pay USD0.24 per kWh delivered to my home (generation + transmission + distribution + taxes). Our energy markets are generally mired in 19th-century ways of measuring, so it's harder to tell what natural gas costs (what is a therm???) But I believe it's about USD0.08 per kWh.
I've just signed up for "community solar." A developer is building a PV farm (in the median strip of a large highway, I believe). It will save me on generation costs, but not transmission or distribution, so my rate will fall to about USD0.18 I believe.
Here we have high generation costs partly because Hydro Quebec drove a hard long-term bargain ("take-or-pay" they call it) with our electric company long ago. Towns with municipal power usually pay less because they're not stuck with Hydro Quebec, but sometimes pay more.
I could go on and on, but here's the thing. It's expensive for generators to participate in long-distance grids. Why? If their AC frequency drifts even a tiny amount, the grid must disconnect. How can companies maintain the AC frequency under heavy load?
1. expensive and filthy peak-load generators (diesel-powered often) spinning ready to take load.
2. big batteries. Telsa and some Australian government utilities have had great success with this.
3. excess renewable capacity. But at times of heavy demand there isn't any.
4. SMART DISTRIBUTION: the ability to quickly and selectively shed load temporarily. Space- and water- heating are perfect applications for this. So is battery charging for transportation.
We aren't nearly done with the disruption yet. Now it starts to get interesting. Electricity companies are in the information business; they just don't know it yet.