GridPath v2025.10.2

What's Changed

• Bugfix: Tweak to update-from-default-subscenario function by anamileva
• Bugfix: Set negative commitment to zero in pass-through inputs by anamileva
• Bugfix: Don't close DB after writing validation by anamileva
• Enhancement: Print stage on solve/import by anamileva

Full Changelog: v2025.10.1...v2025.10.2

GridPath v2025.10.1

What's Changed

• Enhancement: Add option to skip the summary results text file by @anamileva in #1317

Full Changelog: v2025.10.0...v2025.10.1

v2025.10.0

What's Changed

• Feature: Built-in horizons by @anamileva in #1309
• Enhancement: Add period index to ramp rate monthly adjustment by @anamileva in #1310
• Feature: DB-side handling of built-in horizons by @anamileva in #1311

Full Changelog: v2025.9.1...v2025.10.0

GridPath v2025.9.1

What's Changed

• Fix paths in docs by @anamileva in #1306

Full Changelog: v2025.9.0...v2025.9.1

GridPath v2025.9.0

What's Changed

• Enhancement: Reorganize example CSV structure by @anamileva in #1298
• Enhancement: Subscenario defaults by @anamileva in #1299
• Enhancement: Separate load zone 'portfolio' from load balance params by @anamileva in #1300
• Enhancement: Default transmission availability type to 'exogenous' by @anamileva in #1301
• Enhancement: Storage min and max duration defaults by @anamileva in #1302
• Enhancement: Enhancements to viz suite by @anamileva in #1303
• Enhancement: Remove defunct tuning feature; move ramp tuning to project opchar by @anamileva in #1304

Full Changelog: v2025.8.0...v2025.9.0

GridPath v2025.8.0

What's Changed

This is a maintenance release. Dependency versions bumped to latest. Drop support for Python 3.9 and 3.10; add support for Python 3.12 and 3.13.

• Maintenance: Maintenance dependency upgrades by @anamileva in #1289
• Enhancement: Make inertia requirement more flexible. by @alexrob18 in #1288
• Maintenance: Remove UI code from repository by @anamileva in #1290
• Maintenance: Minor fixes by @anamileva in #1291
• Maintenance: Test on Linux, Windows, and Mac by @anamileva in #1292
• Maintenance: Test with coverage on one parallel run only by @anamileva in #1296

Full Changelog: v2025.7.0...v2025.8.0

GridPath v2025.7.0

What's Changed

• Enhancement: Define elcc_simple_fraction over Reals by @Janie115 in #1273
• Feature: New optional feature for Inertia reserve by @alexrob18 in #1275
• Bugfix: Fix credit purchase limit by @alexrob18 in #1276
• Bugfix: Fix inertia requirement by @alexrob18 in #1278
• Enhancement: Make spec project fixed costs an optional input by @anamileva in #1283
• Enhancement: Default project availability type to 'exogenous' by @anamileva in #1285

Full Changelog: v2025.6.1...v2025.7.0

GridPath v2025.6.1

What's Changed

• Enhancement: timepoint level emissions factors for transmission line import/exports by @jaxstuhr in #1269
• Enhancement: Carbon credits purchase limits by @jessvanos in #1270

New Contributors

• @jaxstuhr made their first contribution in #1269

Full Changelog: v2025.6.0...v2025.6.1

GridPath v2025.6.0

What's Changed

• Enhancement: Curtailment cost by period by @anamileva in #1254
• Enhancement: Ramp limits monthly adjustment by @anamileva in #1256
• Enhancement: Re-define f_intercept as percent capacity by @anamileva in #1260
• Bugfix: Fixes to no load balance optype by @anamileva in #1261
• Feature: Total market volume limits by @anamileva in #1262
• Feature: Storage losses limit by @anamileva in #1264

Full Changelog: v2025.5.0...v2025.6.0

GridPath v2025.5.0

What's Changed

• Major Feature: Track demand side resources by @anamileva in #1222
• Feature: Gen hydro water ramp limits by @anamileva in #1230
• Feature: Reservoir volume horizon bounds by @anamileva in #1233
• Feature: Market volume by iteration by @anamileva in #1234
• Enhancement: Summary-only export rule by @anamileva in #1236
• Enhancement: Add market summary results by @anamileva in #1235
• Enhancement: Support getting inputs in parallel when single subproblem within iter… by @anamileva in #1237
• Feature: Tx losses tuning cost by @anamileva in #1238
• Enhancement: Add load summary by @anamileva in #1239
• Enhancement: Summarize market costs and revenues by @anamileva in #1240
• Enhancement: Negative carbon tax allowances by @jessvanos in #1241
• Feature: Load modifier projects by @anamileva in #1228
• Feature: Dispatchable load by @anamileva in #1242
• Bugfix: Fix tx cap group query by @Janie115 in #1245
• Feature: Hurdle rate by timepoint by @alexrob18 in #1244
• Feature: Load component shift by @anamileva in #1243
• Enhancement: Allow by-timepoint var costs to vary with iterations by @anamileva in #1247
• Bugfix: Fix port of csvs to db when loading a single subscenario by @Janie115 in #1249
• Feature: Allow fuel burn limits to be applied on multiple fuels by @Janie115 in #1248
• Enhancement: Various small enhancements and fixes by @anamileva in #1250
• Feature: No-load-balance-power operational type by @anamileva in #1251
• Feature: Add storage losses policy compliance type by @anamileva in #1252

New Contributors

• @jessvanos made their first contribution in #1241

Full Changelog: v2025.4.0...v2025.5.0