Maryland Future of Gas Investigation: Low-Carbon Fuels

Review of low-carbon fuels for Sierra Club in Maryland’s Future of Gas investigation.

Groundwork Data supported Sierra Club in the Maryland Public Service Commission’s Future of Gas investigation, Case 9707. Michael J. Walsh examined renewable natural gas, hydrogen, and other proposed gas alternatives, including their supply, emissions, and potential costs to customers.

The engagement produced direct testimony filed May 4, 2026, and rebuttal testimony filed July 13, 2026.