California has avoided more heatwave-driven rolling blackouts so far this week via energy conservation, demand response, backup power and batteries. Could this be a lesson in meeting long-term grid reliability challenges as clean energy grows in scale?https://bit.ly/3haRWJi
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I think the take away is that we can't just be technology-focused and look at heat pumps of any sort as a silver bullet. We need to equally prioritize and optimize around even greater levels of load reduction. Insulation or a tighter envelope will also shave this peak.
It is cheaper to install GSHP. A heat pump eliminates on-site emissions, while envelope work only reduces them. In NY, we get more energy today from on-site fossil fuels than from electricity. Grid Peaks will rise as we reduce both energy consumption and GHG emissions.
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Also, remember that increased use of electricity during what are now off-peak periods will increase grid utilization and thus lower the cost of electricity. It also means that we'll have enough sales volume to absorb the cost of the needed grid capacity expansions.
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I'm a big fan of heat pumps. I'm just saying they're not a silver bullet... And they need to be accompanied by load reduction. I also like ground-source, it's just a matter of value engineering the project. Whatever pencils... Do it.
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