The Department of the Interior is conducting market research for a planning study to analyze alternatives for rehabilitating the Stampede Power Plant, which will result in an Extraordinary Maintenance Planning report. This is solely a sources sought notice and not a request for proposals. The work is for planning only and excludes final design or construction services. Responses are due by April 6, 2026, at 10:00 a.m. PDT. The applicable NAICS code is 541620 with a $19 million small business size standard.