Doug Arent and Robin Millican on What's Really Driving Electricity Prices

Columbia Energy Exchange’s episode (published June 30, 2026) interrogates why U.S. electricity bills have risen and where data centers fit into the picture. Doug Arent and Robin Millican argue the causes are complex and highly regional rather than a single national crisis driven solely by AI and data‑center demand. Doug emphasizes that fuel—especially natural gas—remains the dominant wholesale price setter, while sharp increases in distribution and transmission costs and equipment inflation (he cited roughly +50% for wood poles and +150% for wires/cables since 2019) have pushed retail bills up for many customers. Robin underscores regional variation: she cites Lawrence Berkeley Lab and Brattle Group findings that 23 states saw real‑term price declines from 2019–2025 while 27 saw increases, with local drivers ranging from wildfire mitigation costs in California to gas volatility in the Northeast and capacity market issues in PJM.

On data centers, the guests agreed they are an important and visible component of new load demand but not the only one. They noted more than 1,200 proposed data centers (estimates of potential new demand range broadly from tens to 100–400 GW), with multiple proposals for campuses larger than 5 GW—sizes that reshape utility planning. Both speakers stressed forecast uncertainty and the need for transparency in interconnection queues: Doug cited early experiments in states like Texas that show expected demand often falls short of prospective demand and said only ~75% of queued generation projects get built. They discussed regulatory and policy responses: FERC’s show‑cause orders to RTO/ISOs to justify tariff rules, state “sandbox” experiments (Texas’s batch queue processing and conditional entry fees were highlighted), and ideas like large‑load tariffs, take‑or‑pay contracts, and upfront contributions to avoid cross‑subsidization by residential customers. For solutions they prioritized a three‑bucket approach: near‑term grid‑enhancing technologies (Robin cited ~260 GW of latent capacity that could be unlocked), medium‑term structural reforms (queue reform, cost‑causation reforms, utility incentive redesign), and long‑term resilience and risk‑management (wildfire hardening, interregional transmission, insurance mechanisms). Both agreed policymakers must pair technical fixes with clear cost allocation to protect vulnerable households while capturing investment opportunities data‑center operators can finance.