Now let's really start using at a resource, not just after it's an emergency and asking people to sacrifice, largely without compensation, for saving the grid.https://www.recurve.com/blog/demand-flexibility-can-fix-the-california-grid …
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Replying to @goldenmatt @jeffsaintjohn
In New York, we're creating optional three-part rates which include demand-based billing determinants in order to properly reflect the fact that homes with heat pumps, etc. have lower cost-causation than fossil fuel heated homes. These are "Beneficial Electrification" rates.
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Replying to @bobwyman @jeffsaintjohn
What does lower cost-causation mean? I'm for good time of use... But retail rates concentrate all risk on the end customer. A wholesale signal can more accurately reflect grid values, and align incentives and manage riak through the market. It also enables project finance.
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Replying to @goldenmatt @jeffsaintjohn
"Cost-causation" measures the actual utility cost caused by the users' electricity use. High coincident peak demand causes more costs than lower peak demand. Increased off-peak demand has little, if any, cost impact other than energy cost. Rates should be cost-based.
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Replying to @bobwyman @jeffsaintjohn
It's an interesting rub really... but the 6am morning winter peak created by heat pump electrification (HVAC) is low system cost, but is high in marginal GHGs and expensive to clear up. Given NY's zero-carbon goals... how are you valuing carbon in that equation?
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Replying to @goldenmatt @jeffsaintjohn
In NY, given the CLCPA, we compute GHG emissions based on GWP-20 (20 year Global Warming Potential) and we include all up-stream production, transmission, storage and distribution emissions in addition to burner-tip emissions. Also, 1/
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Replying to @bobwyman @jeffsaintjohn
Are those emissions hourly, locational, and marginal? If so, where can I find them? Here are the CA system numbers and forecast, though it varies by location substantially as well.pic.twitter.com/gs6B33Ctrz
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Replying to @goldenmatt @jeffsaintjohn
Here are marginal emission factors for all zones in New York State averaged across 2015-2016 by month, day-of-week, and hour-of-day. Note: 6am is pretty clean. Our problem is afternoon and evening. Solar will address afternoon, wind will address night and winter.pic.twitter.com/QVFjARaEoH
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You will notice that NY's marginal emissions over time are the inverse of what you showed for California. This is because we have a very different generation mix -- ours is more like other Northeast states, not California. What is true in California is not necessarily true here.
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Replying to @bobwyman @jeffsaintjohn
Is there a cut of that data by hour, for each month? Heat pump emissions are all about the house of 5am to about 9am in the winter.
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Does the image below do what you're looking for?
This image shows, for each of New York's 11 zones, the relative mean marginal emissions by hour of day for each month of the year.
(Note: Each zone's plot is independent. Thus, colors are zone specific.)
@goldenmattpic.twitter.com/GeYLIVyMFw
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