Get Full Government Meeting Transcripts, Videos, & Alerts Forever!
Get email alerts on the Well Conversion Energy Storage topic
No spam. Unsubscribe anytime.
Committee advances bill allowing conversion of inactive wells for storage or geothermal use
Summary
House Bill 361 would authorize EMNRD to permit conversion of abandoned, temporarily‑abandoned or marginal wells for energy storage (gravity‑based) and geothermal uses, subject to rulemaking and financial‑assurance requirements; the committee approved the bill after technical questions and discussion of liability and monitoring.
Representative Romero presented House Bill 361 to allow the Energy, Minerals and Natural Resources Department (EMNRD) to permit conversion of certain inactive or marginal oil and gas wells for energy storage and geothermal development.
Sponsor summary and witnesses: Romero said the bill aims to repurpose existing infrastructure for energy storage, geothermal opportunities and other innovation, while requiring safeguards such as methane monitoring and financial assurance. Witnesses included company representatives and energy experts who described gravity‑based energy storage technology that uses a weighted mass lowered into a plugged well to generate electricity when the mass is lowered and to recharge when the mass is raised.
Supporters, including Xcel Energy and private companies working on well repurposing, said the measure creates optionality for energy storage capacity without drilling new boreholes. Renewal Energy’s representative described a California demonstration and said a single converted well yields about 35 kilowatt‑hours in that application; developers said typical implementations would scale across multiple wells to provide useful capacity to the grid.
Committee members asked technical and legal questions about casing integrity, monitoring and liability. EMNRD and industry witnesses described the rule‑making path envisioned: MNRD would set permitting, monitoring and financial‑assurance requirements; operators could either retain ownership and maintain plugging liability or, in some business models, transfer responsibilities under contract with required financial assurance and rule‑making safeguards. The bill includes a provision that the well would be required to be plugged if it is not used for storage for 12 consecutive months.
Representative Murphy and others asked for more clarity on how financial assurance and ownership transfers would work in the event of operator insolvency or death; EMNRD witnesses said those implementation details would be addressed in rule making and noted that the bill expressly allows the agency to require financial assurance specific to energy‑storage or geothermal use. The department also said casing integrity and surface monitoring would be needed before conversion.
The committee approved the bill by roll call; the transcript records the committee doing a do‑pass on the measure. Supporters said the bill offers a way to add dispatchable capacity to help integrate variable renewables, while critics urged careful rulemaking to avoid creating new abandonment liabilities.
Why it matters: The bill would create a statutory pathway to convert certain oil and gas wellbores to non‑production uses such as gravity energy storage or geothermal, potentially leveraging existing infrastructure for grid reliability and carbon‑reduction goals. The measure pairs conversion authority with rule‑making and financial‑assurance language intended to limit state liability.
What’s next: HB 361 passed the committee and will move to subsequent committees and, if approved, to the floor. The bill authorizes EMNRD rule making to set technical, monitoring and bonding standards before conversions proceed.
