GridPath v2026.6.0

What's Changed

• Enhancement: Optionally apply curtailment cost to transmission losses by @anamileva in #1386
  • Add example for applying curtailment cost to transmission losses by @anamileva in #1388
• Enhancement: Optionally include transmission losses in generic policy constraint by @anamileva in #1387
  • Ignore Tx losses in policy constraints components when no data specified by @anamileva in #1391
• Enhancement: Model compilation efficiency enhancements by @anamileva in #1389
• Enhancement: Memory efficiency enhancements by @anamileva in #1390
• Enhancement: Add GP version to all entry points and store in DB by @anamileva in #1392
• Enhancement: Add Tx losses adjustment to energy target features by @anamileva in #1393
• Enhancement: Report E2E step timing by @anamileva in #1394
• Enhancement: Record timing of run_scenario steps by @anamileva in #1395

Full Changelog: v2026.5.0...v2026.6.0

GridPath v2026.5.0

What's Changed

• Maintenance: Docs formatting fixes by @anamileva in #1382
• Bugfix: Fix path to raw DB schema file in MANIFEST.in by @anamileva in b237dac8705ca71a9fe5d49f8f06f73a9be3198b
• Bugfix: RA Toolkit fixes for Windows parallelization by @anamileva in #1383
• Maintenance: Fix Mac testing error 'untrusted tap coin-or-tools/coinor' by @anamileva in #1385

Full Changelog: v2026.4.0...v2026.5.0

GridPath v2026.4.0

What's Changed

• Enhancement: RA Toolkit docs and fixes by @anamileva in #1377
• Feature: Add penalty on average unserved load by @anamileva in #1378
• Maintenance: Fix Read the Docs test setup by @anamileva in #1380

Full Changelog: v2026.3.0...v2026.4.0

GridPath v2026.3.0

What's Changed

• Enhancement: Remove summarize_results by @anamileva in #1340
• Enhancement: Default reserve ramp rates to infinity by @anamileva in #1341
• Bugfix: Minor de-bug by @jaxstuhr in #1342
• Enhancement: Fix and update scenarios view by @anamileva in #1343
• Enhancement: Create OPR_PRJS_IN_TMP set more efficiently by @anamileva in #1344
• Enhancement: Project summary results enhancements by @anamileva in #1345
• Enhancement: Add foreign key for project relative capacity mapping by @Janie115 in #1347
• Enhancement: Some enhancements to the import/export rules functionality by @anamileva in #1346
• Maintenance: github actions version update by @anamileva in #1350
• Feature: Month-Hour Policy within Generic Policy Framework by @jaxstuhr in #1349
• Enhancement: Month-hour policy result files cleanup by @jaxstuhr in #1352
• Feature: Support for cap factor defaults by @anamileva in #1353
• Enhancement: RA Toolkit updates by @anamileva in #1351
• Feature: Support for limiting power output from groups of projects by @anamileva in #1356
• Enhancement: Add batching functions for large timepoint queries in SQLite by @yifang-zhu-pge in #1358
• Enhancement: Improve query efficiency for profile inputs by @anamileva in #1363
• Enhancement: Apply outages to hybrid gen and stor components by @anamileva in #1364
• Enhancement: RA Toolkit support for not printing default availability values of 1 by @anamileva in #1365
• Feature: Support for simple monthly project availability derates by @anamileva in #1366
• Maintenance: Refactor scenario structure code by @anamileva in #1367
• Enhancement: Pandas 2.x int64 fix and hydro_balancing_type parameter by @allisonmcampbell in #1359
• Feature: Temporal structure overwrite from CSV file by @anamileva in #1368
• Enhancement: Results import efficiencies by @anamileva in #1369
• Enhancement: Batch draws and remove seed from temp iterations by @anamileva in #1370
• Maintenance: Don't create logger on --skip_solve and explicitly close logger by @anamileva in #1371
• Feature: Support for drawing availability profiles from historical data by @anamileva in #1372
• Enhancement: Improve efficiency of Data Toolkit availability profile creation by @anamileva in #1373
• Enhancement: Efficient parallelization with incomplete_only flag by @anamileva in #1375
• Bugfix: minor db merge queries by @eranschweitzer in #1374
• Feature: Optional BA-level project aggregation via --aggregate_projects by @allisonmcampbell in #1360

New Contributors

• @yifang-zhu-pge made their first contribution in #1358
• @allisonmcampbell made their first contribution in #1359
• @eranschweitzer made their first contribution in #1374

Full Changelog: v2026.2.0...v2026.3.0

GridPath v2026.2.0

What's Changed

• Feature: Support limiting number of startups by horizon by @anamileva in #1330
• Bugfix: Fix "get_inputs_from_database" for intertia reserves requirements by @Janie115 in #1334
• Enhancement: Allow instantaneous penetration ratios to be negative by @Janie115 in #1335
• Feature: Built-in period/month horizons by @anamileva in #1337
• Bugfix: Fixes to load component shift by @Janie115 in #1336
• Major Feature: Support for stochastic formulations by @anamileva in #1338

Full Changelog: v2026.1.0...v2026.2.0

GridPath v2026.1.0

What's Changed

• Enhancement: Upward reserves to SOC depletion and other stor optype enhancements by @anamileva in #1325
• Enhancement: Enhanced treatment of reserves from hybrids by @anamileva in #1326
• Other small fixes and enhancements

Full Changelog: v2025.10.3...v2026.1.0

v2025.10.3

What's Changed

• Enhancement: Tweaks to docs by @anamileva in #1321

Full Changelog: v2025.10.2...v2025.10.3

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