Emil Dimanchev

Implications of policy-driven transmission expansion for costs, emissions and reliability in the USA Nature Energy - Interregional transmission is key to a cost-efficient, reliable and cleaner US grid. Senga et al. find that current legislative proposals can increase reliability while capturing...

New paper out today in Nature Energy!
We evaluate how Congressional proposals for policy-driven transmission expansion would shape U.S. electricity costs, emissions, and reliability. Big implications for climate and grid planning.

rdcu.be/eS7lj

#EnergyPolicy #Transmission #CleanEnergy

And when I say keep growing, I mean in their share of the generation mix. So I would expect the wind and solar share to be higher than today's but not more than, I don't know, 50%?

Thanks for the kind shoutout. This is the historical mix. I'd guess wind and solar will keep growing on their economic merits and in combination with storage, but eventually flatten out as cost declines stop keeping up with their value deflation (aka cannibalization).

That must be the MOPOP. I am sad I didn’t see it when I was there recently.

Twitter accounts are based in Russia. BlueSky accounts are based in homes with, frankly, too many books, plants, obsolete cables, and pieces of rustic pottery, that could do with a bit of a tidying up, to be honest.

Where is this display?

Designing climate policy mixes: Analytical and energy system modeling approaches A matter of debate in climate policy is whether lawmakers should rely on carbon pricing or regulations, such as low-carbon standards, to reach emissio…

Though cost-effectiveness has been the traditional criteria for policy design, in recent work with @knittelmit.bsky.social we showed there is a near-cost-optimal space of policy mix choices that could satisfy various other criteria. www.sciencedirect.com/science/arti...

To choose the right climate policy mix, we need to grapple with the second-best nature of national economies, and the non-linear trade-offs and synergies between individual policies. Policy analysis has room to improve in that regard.

Policy mixes outperform standalone measures in advancing emissions reductions - 10insightsclimate

Good to see climate policy mixes are in the spotlight in this year's Ten Insights in Climate Science!

Climate policy is essentially about choosing the right policy mix.

10insightsclimate.science/year-2025/po...

To quote my friend @drkatemarvel.bsky.social, climate change won't make humanity extinct but we can do better than "not extinct". Raise your standards people!

This adds to a growing body of literature that very clearly shows the use of short run marginal emissions rates is NOT a credible measure of consequential emissions impacts of various actions. Here, it's rooftop solar... 🔌💡

Academic publishers have a natural monopoly and should be regulated as utilities.

They are housed in a handful of countries, so concerted government action should not be difficult.

Out now is an updated version of our working paper on optimal climate policy choices in liberalized power markets.

Do climate policies bring risk-mitigation co-benefits? We find that in some cases they do, & that this matters for the CO2 price vs. subsidies debate.

papers.ssrn.com/sol3/papers....

You make a good point on excess solar capacity! And I'd say another reason it's good to have around is as an insurance against future demand increases. If demand started growing faster than we'd anticipated, excess capacity is handy.

And thank you very much for the shoutout!

More on our important election here in GA. Early voting has started. There are 2 commissioners positions in the ballot. Don’t like how high your power bills have gotten? This is a chance to vote for 2 people that can stand up to GA Power!!

YouTube video by Hank Green I Need 1% of Georgia to Watch This Video

There is an important election opportunity for Georgia voters to have their say on the future of electricity regulation in the state. Turnout is typically incredibly low.

Good break down here. youtube.com/watch?v=UgvE...

Modeling Monday: How clean are EVs, really?
Short answer: it depends on the question. Attributional vs. consequential LCA, average vs. marginal, short- vs. long-run... the metric can flip the answer. 1/🧵

Plus, if we do want to send individuals signals based on the expected consequences of their actions, shouldn't we incorporate long-run consequences too? So I come back to the idea that for a persistent charging schedule, we'd also want to use LRMER or, more realistically, a good proxy.

So do we have to add another "it depends": whether the change in demand is persistent or not?

Perhaps if we are talking about a change in demand that, even if small is predictable (i.e. an EV's charging schedule is changed in a persistent way), then I suppose that would be something system operators will know day-ahead and meet it based on marginal costs.

Ok gotcha. To be honest, I am not sure and curious to hear more. A small, unexpected, perturbation in demand will be handled by frequency regulation and one of several operating reserves. Which generator ramps up in response is very unclear.

This meme is our research to a T.

a man in a helmet with the words this is the way behind him ALT: a man in a helmet with the words this is the way behind him

And yes LRMER for planning is the way!

Ultimately, I think we need new metrics to inform dispatch decisions. In the meantime, dispatching toward the periods with large shares of variable renewables in the generation mix seems like a good heuristic to me.

Great breakdown, and thanks for sharing our paper! About dashboards, I am wondering what kind of use case setting are we talking about, especially for ops? If it's to inform the dispatch decisions of an aggregator, I am concerned about using SRMER in case it leads to the kinds of outcomes we saw.

😂

Does seem like the major AI companies are under-prioritizing safeguards. I am skeptical we can rely on self-regulation when it comes to AI.

Microsoft Office is such a striking example of this. MS is investing heavily in AI but still hasn't figured out how to open files with the same name in different folders.

Kemi Badenoch vows to repeal Climate Change Act Tory leader says she would replace it with ‘cheap energy’ strategy, ending decades-long consensus on climate

Some thoughts on the strategic logic behind Kemi Badenoch’s announcement that she’d scrap the Climate Change Act (CCA).
It serves two functions:
1️⃣ It appeals to lukewarm pivotal voters in marginal seats sceptical of costly green measures.
2️⃣ It is designed to
www.theguardian.com/environment/...

To be clear, the term baseload was already outdated - as electricity generation in modern power systems increasingly revolves around renewable resources - but some who still use it can stand to heed this case.