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5 Jan, 6 tweets, 3 min read
Fabulous news! The MA Legislature passed the #Climate Roadmap Act, which updates the 2008 Global Warming Solutions Act and provides statutory requirement to reduce GHG emissions to net-zero by 2050, in line w/@MassGovernor's 2050 Roadmap released last week
In Oct 2019, I helped organize a letter from 37 scholars & experts "to confirm that the scientific underpinning for [the 2050 Roadmap Bill] is sound, technologies exist to put us on a path to achieving the goals, and there are viable policy pathways for achieving the targets."
For more background, see this thread
I commend the MA legislature for passing this important bill & becoming the 7th state to enact a statutory commitment to net-zero emissions, and @MassGovernor & @EEASecretary for the executives leadership on the Massachusetts 2050 Decarbonization Roadmap mass.gov/info-details/m…
Special applauds to @JoanMeschino for leading the charge on the Roadmap Act in the legislature. I'm no longer a Massachusetts resident (alas), but I'm very proud of the Commonwealths' bipartisan commitment to building a clean & prosperous energy economy.
More details via WBUR wbur.org/commonhealth/2…

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More from @JesseJenkins

JesseJenkins Profile picture
24 Nov 20
.@CountyVentura, CA is considering a ban on #naturalgas hookups for new residential developments. Basically = new homes will be all electric.

In public comments opposing the move, @SoCalGas misleadingly cites my research on electricity decarbonization 🧵 drive.google.com/file/d/1LcXHO3…
My work on electricity decarbonization has demonstrated the importance of what I call "firm" low-carbon electricity generation technologies to enabling an affordable and reliable 100% carbon-free electricity system. See doi.org/10.1016/j.joul… & seminar
This work demonstrates that, under certain conditions, natural gas power plants w/CCS or burning hydrogen (possibly derived from methane reforming w/CCS) *could* play a firm low-carbon role in this 100% carbon-free electricity mix. THIS HAS NOTHING TO DO WITH GAS APPLIANCES.
Read 9 tweets
JesseJenkins Profile picture
12 Nov 20
In @nytopinion, @JustinHGillis & @oboylemm argue it is time for U.S. electric utilities to stop investing in new natural gas-fired power plants. nytimes.com/2020/11/12/opi…

They're right (with a few exceptions). Here's why...
We already have over 540 gigawatts of natural-gas fired generating capacity in the U.S. today. That's enough to meet about 2/3 of our nationwide peak in electricity demand. That's plenty of capacity to help manage the variability of weather-dependent wind & solar as they scale up
Those existing natural gas power plants will play a key role in the near-term as what I've termed "firm" generating capacity: available on demand (dispatchable), any time of the year, for as long as needed. (For more on firm generation, see doi.org/10.1016/j.joul…)
Read 17 tweets
JesseJenkins Profile picture
11 Nov 20
Here's 39 things President-Elect Biden could do to take #ClimateAction, featuring a round-up of voices from across the climate policy landscape: bloomberg.com/features/2020-…

My entry w/@CostaSamaras: appoint climate-focused Budget Director and White House Chief of Staff. Why? 🧵⤵️
President-elect Biden’s chief of staff and OMB director must align all federal agencies, spending, and legislative strategy around four big goals: ending the pandemic, rebuilding the economy, dismantling systemic racism, and confronting climate change. 1/
Cabinet secretaries get a higher profile, but no other positions beyond the President him or herself has a broader reach across the federal government than the Director of the Office of Management and Budget (OMB) and White House Chief of Staff. 2/
Read 10 tweets
JesseJenkins Profile picture
16 Jul 20
Wind, solar & battery costs have plummeted & energy storage installs are booming. Good timing for my new paper w/@dhariksm & @nsepulvedam on "Long-run system value of battery energy storage in future grids with increasing wind and solar generation"

👀➡️authors.elsevier.com/a/1bLLO15eiezz… Image
Our new study out in @ElsevierEnergy's journal Applied Energy finds that the economic value of storage increases as variable renewable energy generation supplies an increasing share of electricity supply but that storage cost declines are needed to realize full potential. ImageImage
We used a detailed electricity system planning model (energy.mit.edu/wp-content/upl…) to examine battery storage & determine key drivers that impact its economic value, how value changes w/increasing deployment over time, and implications for the long-term cost-effectiveness of storage.
Read 24 tweets
JesseJenkins Profile picture
14 Jul 20
In round #s: assuming electrification consistent w/net zero economy wide emissions by 2050, US needs ~5k-5.5k TWh of total electricity in 2035 (vs ~4k now). Need to ~double again by 2050 too! We have on order or 1.5k TWh from all clean sources today (about 1/2 nuclear & 1/2 RE).
So that says we need to more than triple all current carbon-free generation from now to 2035 to meet Biden goal. And we would need to build ~7 times current carbon-free generation cumulatively by 2050 to keep up with growing electric demand from EVs, heat pumps, electrolysis, etc
I'm a co-PI of @Princeton's Net Zero America study which is researching what it will take to get the US to net zero greenhouse gas emissions by 2050. We'll be sharing findings later this year on the scale and pace of this undertaking and the impacts on employment, pollution, etc.
Read 5 tweets
JesseJenkins Profile picture
7 Jul 20
A new ICE order from the Trump Administration out today may result in deportation of thousands of international students attending U.S. universities. Pure spite and racist hatred as policy. 😡 ice.gov/news/releases/…
As many universities (including mine) go partially or entirely online this Fall to continue their educational missions and contend with health risks of #COVID19, this new policy bars students on nonimmigrant F-1 visas from taking courses entirely online while residing in the U.S.
It simultaneously prohibits those in the U.S. from taking more than 1 class online while maintaining their visa status. In effect, this order forces students to take a full course load (less 1 online class) in person, whether that is safe or not, or to leave the country entirely
Read 4 tweets

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