Cheaper peaks, dearer bills: storage beats gas peakers as rate requests hit records
Victoria Shinder2 min readTwo reports published on 8 October measure the same problem from opposite ends — what new capacity costs to build, and what customers are being asked to pay.
1. The cost of new peaking capacity. Wood Mackenzie's latest levelised-cost analysis finds four-hour battery storage now cheaper than gas peakers across markets worldwide. In the US, for a 2026 commercial operation date, a WoodMac spokesperson told Utility Dive that four-hour storage is 65% to 75% cheaper than new open-cycle gas turbines, depending on whether state carbon pricing applies. The drivers are on both sides: gas turbine prices projected to reach $600/kW by end-2027, up 195% since 2019, with the three major manufacturers holding backlogs of 35 GW to 116 GW each; and expanding battery manufacturing pushing storage costs down. WoodMac also expects North American gas investment to enter "a supply deficit cycle through the late 2030s", driven by data-centre load. Two caveats in the same report: US solar module prices are expected to keep rising under tariffs and import restrictions, and storage costs could spike when investment tax credits phase out from 2038.
2. The cost on the bill. The advocacy group PowerLines counted $23.1 billion of electric and gas rate increases requested by investor-owned utilities so far in 2026, including a record $4.5 billion in the third quarter — more than double Q3 2025. The largest single request came from FirstEnergy's Jersey Central Power & Light: a $253 million base-rate increase plus recovery of $476 million in deferred storm costs over ten years, about 8.8% on an average residential bill from 2028. PowerLines also estimates utility capex through 2030 has risen to $1.4 trillion.
Reading them together. Not all of the rate pressure is generation — storm recovery, distribution and gas networks are large parts of it. But the capacity side is where the cheapest new option has changed. If storage is 65–75% cheaper than new peakers in the US, every peaker built because a planning process defaulted to gas is a cost that ends up in a future rate case. The first cohort of PJM's fast-track interconnection process, approved the same day, was almost four-fifths storage — a sign that developers facing a three-year deadline are already choosing accordingly.
What to watch. State commissions reviewing resource plans and rate cases can now ask a sharper question: was storage evaluated for each new peaking need, at today's costs? And the turbine backlog cuts both ways — gas plants ordered now arrive late, at prices set in a supply shortage.
This analysis draws on: Utility Dive, "4-hour storage cheaper than gas peakers across global markets: WoodMac", 8 October 2026 — https://www.utilitydive.com/news/4-hour-storage-cheaper-than-gas-peakers-across-global-markets-woodmac/832489 ; Utility Dive, "US electric, gas utility rate requests spike to $4.5B in Q3: PowerLines", 9 October 2026 — https://www.utilitydive.com/news/q3-electric-gas-rate-requests-powerlines-analysis/832609