Paulina Jaramillo
@paulijllo.bsky.social
4.9K followers 1.7K following 250 posts
Professor of Engineering & Public Policy @CarnegieMellon. Energy system transtions and climate. #energysky #climatesky. IPCC AR6 WGIII. Now a @AAAS S&T Policy Fellow in the House of Reps. 🇨🇴by birth, 🇺🇸 by naturalization. 🐘lover. Views are my own.
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paulijllo.bsky.social
Data centers could consume 12% of U.S. electricity by 2028. Paradox: they could also stabilize the grid they’re straining. Will they? Probably not in time. #EnergySky
open.substack.com/pub/paulinaj...
Can Data Centers Help the Grid They’re Straining?
Paulina Jaramillo, Ph.D.
open.substack.com
paulijllo.bsky.social
The federal retreat on hydrogen is frustrating, but it must not be the end of the story. States acting decisively now could position themselves as leaders in the hydrogen economy climate science tells us we desperately need.
#hydrogen #climate #energypolicy
open.substack.com/pub/paulinaj...
The Hydrogen Crisis: How Political Winds Are Stalling Our Energy Future
Paulina Jaramillo, Ph.D.
open.substack.com
paulijllo.bsky.social
We just submitted comments to EPA on their proposed rescission of the greenhouse gas endangerment finding. The science is clear: GHGs are air pollutants that harm public health through multiple pathways. Policy should follow evidence, not ideology. #Climate #CleanAirAct #EPA
jmichalek.bsky.social
Today we submitted our public comment on critical flaws in EPA's rationale for rescinding its authority to regulate greenhouse gas emissions.

This proposed move is a big deal with profound implications for our future. Today's the last day to comment. www.cmu.edu/cit/veg/publ...
paulijllo.bsky.social
I have concluded that Democrats should not shut down the government. Why get in the way of letting the system collapse under the GOP's hands? Voting has consequences. Let the country feel them. I am sad that so many will suffer, but I don’t see another way to escape this chaos.
Reposted by Paulina Jaramillo
dcinbox.bsky.social
Use of the word "evil" in official congressional e-newsletters, over time, by party
paulijllo.bsky.social
Data centers could increase US electricity costs by 8% and emissions by 30% by 2030. These trends create fundamental challenges for grid planning. Solutions exist, but policymakers must act now. Read more at Amped Up!
#Energy #DataCenters #Climate
open.substack.com/pub/paulinaj...
The Digital Infrastructure Boom is Driving Up Everyone’s Electric Bill
Paulina Jaramillo, Ph.D.
open.substack.com
paulijllo.bsky.social
Americans could learn some things from the French.
paulijllo.bsky.social
Republicans are against considering race in college admission reviews, but get excited about considering race in immigration enforcement.
paulijllo.bsky.social
House witnesses this week will claim energy efficiency standards hurt consumers. But research shows the opposite: these policies help families achieve lower bills, healthier homes, and energy security while boosting US clean energy leadership.
Read more in Amped Up! open.substack.com/pub/paulinaj...
Beyond the Industry Talking Points: The Real Case for Efficiency Standards
Paulina Jaramillo, Ph.D.
open.substack.com
paulijllo.bsky.social
Two actually good permitting bills heading to House committee: ePermit Act (digital tools + coordination) and NEPA Data Act (empirical analysis of review timelines).
Bipartisan, evidence-based, working within existing frameworks.
New post:
open.substack.com/pub/paulinaj...
Two Promising Bills Signal Some Progress on Permitting Reform
Paulina Jaramillo, Ph.D.
open.substack.com
paulijllo.bsky.social
Republicans are trying to innovate America back to the 19th century. Republicans would gut environmental reviews and expand coal mining while black lung disease resurges. It’s a stunning failure of imagination from the party that claims to champion innovation.
open.substack.com/pub/paulinaj...
The Return to Coal: How Republicans Are Dismantling Environmental Progress
Paulina Jaramillo, Ph.D.
open.substack.com
paulijllo.bsky.social
The DOE published a climate report that abandons science for ideology. My CMU colleagues and I called it out in our public comments: it’s not serious research, it’s a document designed to serve those who profit from climate inaction. Read our comments on Amped Up. open.substack.com/pub/paulinaj...
Fighting Back Against Federal Climate Misinformation
Paulina Jaramillo, Ph.D.
open.substack.com
paulijllo.bsky.social
“Thoughts and prayers” don’t seem to be working.
paulijllo.bsky.social
America’s property insurance crisis could make 2008 look small. Insurers fleeing entire states, premiums tripling, millions of homes becoming uninsurable. $1.47T in property losses projected by 2055. The hardest truth: managed retreat is inevitable. New post: open.substack.com/pub/paulinaj...
America’s Property Insurance Crisis: An Economic Catastrophe in the Making
Paulina Jaramillo, Ph.D.
open.substack.com
paulijllo.bsky.social
If you haven’t done so yet, check out my new Substack Newsletter: Amped Up - Energy Policy Talk. I have already published a few essays about permitting reform and grid planning. I will soon write about capacity markets, data centers, and hydrogen. Subscribe now!
paulinajllo.substack.com
Amped Up: Energy Policy Talk | Substack
My personal Substack. Click to read Amped Up: Energy Policy Talk, a Substack publication. Launched 16 days ago.
paulinajllo.substack.com
paulijllo.bsky.social
🔌💡 The lights come on when you flip the switch, but we may not be ready for what’s coming.
NERC warns of electricity shortages ahead while we’re juggling exploding demand, renewables, and climate change with broken governance.
Why our planning is failing:
open.substack.com/pub/paulinaj...
The Great Electricity Planning Challenge: A Story of Change and Uncertainty
Paulina Jaramillo, Ph.D.
open.substack.com
paulijllo.bsky.social
Final post in my permitting series! A Path Forward: One Way to Fix America’s Overburdened Permitting System. From consolidating agency authority to cutting paperwork bloat, here’s what sensible reform could look like. Too bad we have a dysfunctional Congress. open.substack.com/pub/paulinaj...
A Path Forward: How to Fix America’s Broken Permitting System
Paulina Jaramillo, Ph.D.
open.substack.com
paulijllo.bsky.social
New post: Congress rejected bipartisan permitting reform in 2024 that would have helped clean energy. Now we are facing the SPEED Act, legislation that would gut environmental review entirely. Sometimes imperfect compromise beats purity. 🔌💡
open.substack.com/pub/paulinaj...
The Road Not Taken: Did Democrats Miss Their Chance on Permitting Reform?
Paulina Jaramillo, Ph.D.
open.substack.com
paulijllo.bsky.social
Program managers indeed make the final award decisions based on recommendations from the review panels. However, program managers are typically career scientists and not political appointees.
paulijllo.bsky.social
Senior appointees are political appointees: “Senior appointees and their designees shall not ministerially ratify or routinely defer to the recommendations of others in reviewing funding opportunity announcements or discretionary awards, but shall instead use their independent judgment.”
paulijllo.bsky.social
Peer review is mentioned. The EO says explicitly that agency leads are not required to follow the recommendations from review panels when making award decisions. The order gives final granting authority to political appointees. Here is a helpful summary: arstechnica.com/science/2025...
New executive order puts all grants under political control
All new funding on hold until Trump administration can cancel any previously funded grants.
arstechnica.com
paulijllo.bsky.social
Here is my first essay on Permitting Reform. I am still struggling with this subject and will expand my thoughts in future posts.

open.substack.com/pub/paulinaj...
Why Do We Need Permitting Reform? (And Are We Asking the Right Questions?)
Paulina Jaramillo, Ph.D.
open.substack.com