Sienna Software Development

The Alliance for Energy Innovation, LLC, acting as a Department of Energy contractor, has issued a Sources Sought Notice to conduct market research for expert support in the development, technical advisory, and training services related to the Sienna software platform. Sienna is an open-source energy systems modeling tool built in Julia and used by the National Laboratory of the Rockies to support power systems simulation, capacity planning, power flow analysis, and results analytics for both domestic and international energy agencies and utilities. The goal of this notice is to identify qualified sources capable of enhancing Sienna’s capabilities, particularly in areas such as optimization-based modeling, open-source software development practices, and the delivery of technical training and documentation. Responses are expected to demonstrate proven expertise in Julia programming, familiarity with Sienna’s ecosystem including PowerSystems.jl and PowerSimulations.jl, experience with continuous integration and version control workflows, and a background in energy systems modeling. This notice is strictly a pre-solicitation market research tool and will not result in an award; it is intended to inform the development of a future Request for Proposal. All submissions must be made as a single PDF file no longer than two pages, excluding a cover page, and must be sent via email to ASP.Responses@nlr.gov with a specified subject line format by the deadline of June 26, 2026. Respondents are required to provide their company information, a description of relevant technical capabilities, and non-binding Rough Order of Magnitude pricing estimates, along with their small business or socioeconomic status under NAICS code 541511. While no formal evaluation factors, contract clauses, payment terms, or performance periods are defined, the notice emphasizes that technical competence in the Sienna platform and Julia-based scientific computing is essential. The place of performance is specified as Golden, Colorado, and while remote work is likely acceptable, engagement is expected to be centered around this location. No attachments, packaging requirements, or security clearances are stipulated, and this document contains no binding contractual obligations.