Month: 2026-04 — NREL/REopt.jl delivered significant business and technical value through CI/CD enhancements, a generator cost feature with fixes, and release prep for 0.58.x. Key contributions include streamlined CI/testing/docs, an extended generator cost capability, and precise versioning with 0.58.0 and 0.58.2 changes, supported by clear changelog updates. These changes improve release reliability, accelerate iterations, and strengthen the cost optimization feature set for users.

December 2025 monthly summary for NREL/REopt.jl focusing on accuracy and documentation improvements. Delivered a critical bug fix to emission factor type handling for pollutants to ensure correct emission calculations, together with a targeted improvement to changelog formatting for clarity and traceability. These changes enhance modeling fidelity and developer communication.

For 2025-10, key features, fixes, and test coverage improvements were delivered across REopt.jl and REopt_API, enhancing modeling capabilities, documentation quality, and release reliability. The work focused on expanding GHP simulations, strengthening input/test coverage for new technologies, and aligning release notes with user needs to support faster onboarding and clearer business value.

Monthly summary for 2025-09 focused on delivering new technology integrations in REopt.jl, fixing critical tariff logic, and strengthening release readiness. The work emphasizes business value through expanded modeling capabilities, improved billing accuracy, and clearer documentation.

March 2025: Monthly development summary for NREL/REopt.jl highlighting feature delivery, bug fixes, and impact.

February 2025: Completed the Electrical Load Calculation Improvements and Reporting feature in NREL/REopt.jl, introducing a new annual electric load result with thermal conversions and clarifications for electrified vs non-electrified thermal loads. Documentation and comments were updated to improve clarity on load aggregation and renewable energy definitions, and the CHANGELOG was reconciled to reflect the total site load. This work enhances the reliability of site-level load reporting and supports electrification planning.

January 2025 — NREL/REopt.jl monthly highlights: Delivered a feature enabling forced dispatch of ASHPs and updated documentation. Focus on business value and technical rigor.