21. If we simply the analysis the question becomes: to use natural gas in a furnace or in a power plant (plus end-use heating appliance)?
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Replying to @RichardMeyerDC
22. In most places where homes must have heat for winter, a natural gas furnace results in less CO2 than a heat pump.
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Replying to @RichardMeyerDC
23. That's true if we assume an average grid mix, but it's especially true when we use non-baseload mixes (marginal methodologies).
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Replying to @RichardMeyerDC
24. Natural gas is thus an effective emissions mitigation measure in a cost per ton of CO2 reduced. Hope to have more analysis on this soon.
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Replying to @RichardMeyerDC
25. Where CO2 emissions between electricity and natural gas are close, it probably means the cost of reduction is high in $/ton.
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Replying to @RichardMeyerDC
26. One more digression: most electric home heating is resistance appliances. Furnaces & water heaters. Very inefficient.
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Replying to @RichardMeyerDC
27. The case for natural gas appliances vs. resistance electric is a slam dunk in most cases, both consumer cost and CO2e.
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Replying to @RichardMeyerDC
28. I fear many will rush electrification arguments without proper analysis to think through the consequences, or the costs.
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Replying to @RichardMeyerDC
29. I hope to share more on this topic soon. And with that, the tweetstorm has passed.
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Replying to @RichardMeyerDC
Has anyone done this study (marg em of NG to elec heating switch)? Or are you about to announce it? I just finished similar work for AC...
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Various parties to rate cases in New York State are working on parts of NG vs GSHP issue (using both average and marginal emissions). I'm working on these issues as I'm a party to the O&R rate case.
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