Stephen Judkins: If you do the math, electrifying *all* ground transportation in the US would increase electricity demand by less than 20%. HVAC, especially in heating climates, is going to be a considerably bigger challenge for the grid. Easily shiftable EV load could actually help make the grid stabler!

If you do the math, electrifying *all* ground transportation in the US would increase electricity demand by less than 20%. HVAC, especially in heating climates, is going to be a considerably bigger challenge for the grid. Easily shiftable EV load could actually help make the grid stabler!

The US added 1.2Million EVs to the grid last year & electricity use dropped due to inc. efficiency. Grid stability will increase further when V2grid charging is deployed at scale. 🧪🔌💡https://cleantechnica.com/2024/02/02/the-us-added-1-2-million-evs-to-the-grid-last-year-electricity-use-went-down/

The US Added 1.2 Million EVs To The Grid Last Year, & Electricity Use Went Down - CleanTechnicacleantechnica.com With over 1 million new EVs plugging into garage outlets, home charging stations, and Superchargers, you’d think our electricity usage would have shot up dramatically. You’d be wrong.

(V2G could help but some modeling indicates just shifting charging would yield most of the benefits)

I read somewhere a few years ago that NYC’s peak electricity usage is during summer pm rush hour bc of subway and air conditioning. That would give us a cushion to electrify heating w/o increasing capacity, right?

Probably, hard to say, but for full electrification demand might, like, double during the winter. It's going to be tough

Would love a good reference to this if you have one. Not doubting, just would like to read the details and have a source to cite.

Worked this one out myself with data on US VMT, average fuel economy, and normalizing efficiency of a Tesla Model 3 vs a Toyota Corolla. Other people have done more sophisticated modeling with similar results

I get about +25% for all light duty vehicles, but in the same range. Whatever it is, we’re doing it so let’s do it

Interesting, my (amateur) calculations definitely included semi trucks. Would love to see a detailed breakdown with all assumptions, caveats , etc

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