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Daniel Olsen

@danielolsen

Power systems decarbonization researcher (PhD UW '19) turned decarbonization software developer. Interested in models, technology, policy, imagination.

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Latest posts by Daniel Olsen @danielolsen

Plus the people who are high earners and also benefiting from Prop 13 because they inherited a low tax rate etc. Those folks are also richer than they look on paper.

02.03.2026 21:12 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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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

04.12.2025 15:02 πŸ‘ 13 πŸ” 7 πŸ’¬ 1 πŸ“Œ 0
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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/🧡

13.10.2025 18:00 πŸ‘ 42 πŸ” 14 πŸ’¬ 3 πŸ“Œ 6

I'm dipping my toe back into the academic literature: who's got recommendations for good papers around transmission network reduction algorithms? πŸ”ŒπŸ’‘

26.08.2025 16:40 πŸ‘ 1 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

I promise to always boost anti-Prop 13 content, especially if it's got information and jokes.

17.05.2025 00:07 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Combustion turbines would seem to often be designed for similar flexibility, and not to have inertia only for its own sake.

01.05.2025 15:13 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

ok but can we take a minute to think about CryShare? I had a baby who would not sleep, at all. very hard times. we were losing our minds. and I still would no sooner have handed the baby over to a stranger TO DRIVE HIM AROUND IN A CAR than saw off both my legs with a steak knife

21.04.2025 18:52 πŸ‘ 315 πŸ” 15 πŸ’¬ 23 πŸ“Œ 2
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UW students’ visas revoked without notice by Trump administration The University of Washington plans to provide the affected students access to legal services that are paid for by their student fees.

The University of Washington plans to provide the affected students access to legal services that are paid for by their student fees.

08.04.2025 13:49 πŸ‘ 71 πŸ” 20 πŸ’¬ 0 πŸ“Œ 3

It was fun while it lasted

13.03.2025 15:17 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Find Lost Data

Hopefully this is a useful tool: findlostdata.org

04.03.2025 19:16 πŸ‘ 28 πŸ” 8 πŸ’¬ 0 πŸ“Œ 0

I'm sure plenty of people have downloaded copies, but who's going to host something as canonical and convenient as NREL/EIA? This is a huge step back for the research community.

07.02.2025 22:38 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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A Michigan city’s β€˜sustainable energy utility’ got the green light from voters. What now? By creating a supplemental utility that will focus on scaling up rooftop solar, battery storage and microgrids, Ann Arbor, Michigan, is taking its clean energy future into its own hands, stakeholders ...

The fun story of Ann Arbor planning to build a duplicate distribution grid:

β€œI’ve explained this to people like, β€˜This is the fifth-best solution, but solutions one through four are not viable for a variety of different reasons,’” Mathieu said. β€œFive is feasible. So, let’s do it.”

03.01.2025 19:36 πŸ‘ 6 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Energy Exemplar has blocked all TU Berlin students from academic licences for their energy modelling tool PLEXOS because competitor PyPSA is developed here. While deeply shocked, we believe in turning the other cheek. So we are offering all Energy Exemplar employees a free licence for PyPSA.

22.11.2024 09:19 πŸ‘ 205 πŸ” 47 πŸ’¬ 8 πŸ“Œ 13
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Dan Savage on blue America in the age of Trump Dan Savage joins me on Volts to discuss how NIMBY-captured city leadership is failing Democrats β€” and why making cities better is the key to building the party’s future.

Today on Volts: 20 years ago, @thestranger.com.web.brid.gy published a piece in the wake of GW Bush's 2004 reelection: "The Urban Archipelago." I talk with then-editor @dansavage.bsky.social about the politics of cities in a time of reactionary backlash. www.volts.wtf/p/dan-savage...

20.11.2024 17:13 πŸ‘ 232 πŸ” 44 πŸ’¬ 22 πŸ“Œ 39

See also: the opioid epidemic and the downturn of brick-and-mortar retail

15.11.2024 20:16 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Thinking back to the impact of Hurricane Helene on the NOAA databases (among other things): what are the most urgent data backup needs?

11.11.2024 17:37 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Which companies (if any) are doing it right?

04.11.2024 20:56 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It should be indexed in a way that matches the context in which the data are being looked at. Follow 0- or 1-based indexing based on the programming language, or make it abundantly clear via context in e.g. data tables.

14.10.2024 16:54 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

21st century Upton Sinclair

09.10.2024 16:51 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Because of the Inflation Reduction Act, other policies, & innovation, US installed solar & wind power capacity in 2030 is now projected to be double what it would have been before the start of the Biden Administration. Double! That’s good. Let’s do even more now. www.whitehouse.gov/briefing-roo...

09.04.2024 01:09 πŸ‘ 184 πŸ” 76 πŸ’¬ 1 πŸ“Œ 4
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10 GW/hr net load ramp in ERCOT 😬

source: www.gridstatus.io/total-solar-...

08.04.2024 18:52 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Sr. Software Development Engineer, Clean Energy, AWS Industry Products AWS Industry Products (AIP) is an AWS engineering organization chartered to build new AWS products by applying Amazon’s innovation mechanisms along with AWS digital technologies to real world industry...

Who wants to come work with us at AWS to help decarbonize power systems?

04.04.2024 19:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Does Rooftop Solar Actually Help the Climate? Inside episode five of Shift Key.

If you own a home, and install solar panels on it, are you doing anything to change how much fossil fuel gets burned in your region or around the world?

@emilypont.bsky.social joins @robinsonmeyer.bsky.social and @jessejenkins.bsky.social on SHIFT KEY to find the answer:

06.03.2024 15:56 πŸ‘ 1 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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Software engineer looking to contribute towards the energy transition? πŸŒžπŸŒ¬οΈπŸ”‹

Come to TU Berlin and develop PyPSA, one of the leading open energy system tools. PyPSA is used around the world to model our path to climate neutrality.

jobs.tu-berlin.de/en/job-posti...

Deadline: 15.3

Duration: 3 years

23.02.2024 13:52 πŸ‘ 8 πŸ” 12 πŸ’¬ 1 πŸ“Œ 1

I'd guess that solving the SCED/SCUC is the biggest lift, so if you can find info on how well those problems parallelize, you're most of the way there (assuming that the tools are appropriately taking advantage of the amount of parallel compute made available to them)

13.01.2024 20:43 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Fascinating!

Do you have any gut feeling as to whether there's more room for new entrants to still be profitable, and if so, what penetration might be economic? Given the level of transmission between CAISO and the rest of WECC, how relevant is the CAISO penetration vs. the WECC penetration?

10.01.2024 00:54 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Why should we care about 'electrifying everything' as a goal of its own? I care about decarbonizing energy systems, and reducing emissions of other pollutants as well. If the best way to do that is electrifying everything, great. If not, that's fine too.

23.12.2023 00:15 πŸ‘ 4 πŸ” 0 πŸ’¬ 4 πŸ“Œ 1

Betteridge's law of headlines

28.11.2023 06:42 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Housing policy is environmental justice policy (with receipts)

x-post from @jenniferdoleac.bsky.social elsewhere, original description:

"
Tridevi Chakma,

JMP: 'The Causes and Consequences of Urban Heat Islands',

Website: tridevichakma.com
"

20.11.2023 21:51 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

JSON is bad: sets, comments, and trailing commas are good, actually.

31.10.2023 17:13 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0