Ari Peskoe

Ari Peskoe

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Director, Harvard Electricity Law Initiative; US power markets, FERC and transmission

White House Loses Two EO 14260 Energy Cases, Faces More Lawsuits
SocialApr 16, 2026

White House Loses Two EO 14260 Energy Cases, Faces More Lawsuits

The White House is 0 for 2 in cases launched under EO 14260: Protecting American Energy From State Overreach. It lost a similar case about an MI lawsuit. Two cases pending on VT and NY Climate Superfund laws. New case against...

By Ari Peskoe
Rare Cabinet Presence at Private Energy Ribbon-Cutting
SocialApr 15, 2026

Rare Cabinet Presence at Private Energy Ribbon-Cutting

Can anyone think of an instance where 3 cabinet secretaries (not to mention the FERC chair) attended a ribbon-cutting ceremony like this for privately owned energy infrastructure? (EPA, Interior, and Energy were there)

By Ari Peskoe
Old FERC Rule Limits Data Center Cost Recovery
SocialApr 15, 2026

Old FERC Rule Limits Data Center Cost Recovery

I have two new pieces on transmission pricing for data centers. I explain that a 1990s FERC policy intended to spur competitive markets is being understood to prevent utilities from charging data centers for their full costs of service.

By Ari Peskoe
Load Growth Can Both Raise and Lower Rates
SocialApr 6, 2026

Load Growth Can Both Raise and Lower Rates

And as LBNL's new slide deck explains with this simple graphic, "Load Growth" can increase or decrease rates. https://t.co/8ToE41qB6C

By Ari Peskoe
Federal Lawsuit Targets Morris Township's Natural‑gas Ban
SocialApr 1, 2026

Federal Lawsuit Targets Morris Township's Natural‑gas Ban

Administration sues Morris Township, NJ - population 23,000 - to preempt a 2022 ordinance that bans natural gas in new apt buildings.

By Ari Peskoe
Outdated FERC Pricing Risks Consumer Affordability in Data Costs
SocialMar 31, 2026

Outdated FERC Pricing Risks Consumer Affordability in Data Costs

One problem w this filing - which purports to justify making everyone pay for data center transmission - is that it assumes FERC's 1994 transmission pricing policy still holds. It shouldn't. It was written to foster wholesale mkt competition and...

By Ari Peskoe
California's Middle East Oil Imports Drop Below 30%
SocialMar 31, 2026

California's Middle East Oil Imports Drop Below 30%

"Previously"?? Like in 2015? In 2025, less than 30% of oil imported into CA was from the Middle East. It's been less than 50% of imports since at least 2017.

By Ari Peskoe
FERC OKs ISO-NE Shift to Prompt Capacity Market
SocialMar 31, 2026

FERC OKs ISO-NE Shift to Prompt Capacity Market

RIP ISO-NE FCM (2008-2026) FERC approved ISO-NE's proposal to replace the Forward Capacity Market with a prompt capacity market in which an Annual Capacity Auction (ACA) would be held 1 month before the capacity commitment period.

By Ari Peskoe
LBNL Updates Retail Electricity Price Trends, Highlights Data Centers
SocialMar 31, 2026

LBNL Updates Retail Electricity Price Trends, Highlights Data Centers

LBNL just released an updated analysis of retail electricity price trends. Packed with credible data and analysis, including clarifications about data centers -- https://t.co/HSlAecpCgH

By Ari Peskoe
Entergy Urged to Disclose Records Amid $2B Savings Claim
SocialMar 30, 2026

Entergy Urged to Disclose Records Amid $2B Savings Claim

Entergy should release detailed accounting records -- which are standard in utility rate cases -- if it wants to claim $2B in ratepayer savings. Entergy stock is up 7% since it announced the deal.

By Ari Peskoe
Stakeholders Question PJM Proposal’s Ability to Meet FERC Goals
SocialMar 26, 2026

Stakeholders Question PJM Proposal’s Ability to Meet FERC Goals

Parties asked FERC to modify PJM's proposal for complying with December co-location order. Data centers and generation/storage developers say PJM's proposal doesn't meet FERC's objectives. Existing industrials warn it will raise their rates. IMM is skeptical of the whole thing.

By Ari Peskoe
FERC Resolves Market Monitor Complaint in Months, Others Stall
SocialMar 25, 2026

FERC Resolves Market Monitor Complaint in Months, Others Stall

The market monitor filed this complaint 4 months ago. Incredibly fast turn-around from FERC. Other complaints -- particularly about transmission rates and planning -- have been sitting for years.

By Ari Peskoe
Utility Builds Data Center Transmission Free of Ratepayer Costs
SocialMar 20, 2026

Utility Builds Data Center Transmission Free of Ratepayer Costs

So apparently a utility is able to build transmission for data centers without charging ratepayers? Utilities have almost universally said this would be bad policy.

By Ari Peskoe
EEI Serves Shareholders, Not Ratepayers; FERC Must Act
SocialMar 19, 2026

EEI Serves Shareholders, Not Ratepayers; FERC Must Act

The Edison Electric Institute works for utility shareholders, not utility ratepayers. That's why FERC should revive its dormant proceeding about utility trade association dues and ensure that utility shareholders pay for EEI, not the public.

By Ari Peskoe