[frahlg]

Pin compiled Energyplan 0.4.0 from private source 467aa1e (https://github.com/srcfl/energyplan/pull/11, plus #9 and #10).

The worker keeps a proven incumbent when a later dual or MIP step fails, reports Feasible instead of Optimal when the search did not close, and stays alive on hostile protocol input.

Planner wire:

• Slot and settings prices go as price_per_kwh / spot_per_kwh / export_price_per_kwh (same minor units as before, not öre field names).
• When price.demand_price_per_kw is set, Core expands local weekday 06–20 clock hours, including DST, applies VAT, and attaches already_kw from this month's measured import. Empty keeps planning unchanged.

FTW contains only the compiled Linux ARM64/AMD64 and macOS ARM64 workers plus public integration metadata.

Validation:

• python3 scripts/package.py --output dist/0.4.0-full on macOS (all three platforms)
• Darwin handshake: version 0.4.0, features champion, forecast_reset, partial_slots, demand_charges
• FTW make native-solver-test and make verify

---

Note

Medium Risk
Changes the external planner protocol and adds tariff logic that directly steers MPC optimization; misconfiguration or history gaps could skew plans, though zero demand price preserves prior behavior.

Overview
Pins Energyplan 0.4.0 and updates the planner JSON contract so slot and export prices use neutral keys (price_per_kwh, spot_per_kwh, etc.) instead of öre-specific names—same minor currency units as before.

When price.demand_price_per_kw is set (optional demand_top_n, default 3), Core builds weekday 06–20 local peak-power tariffs for the planning horizon: DST-aware clock hours, VAT on the wire price, already_kw from measured import history (ImportWhIntervals on grid history), and partial elapsed_import_kwh for in-progress hours. Empty/zero demand config leaves behavior unchanged. Demand charges are attached to replans, require the solver demand_charges feature, and bump Energyplan to the fleet time budget when present.

Config validation, example YAML, Settings → Price fields, and MPC hot-reload (demand + timezone) round out operator wiring.

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-09T07:18:16.754491Z	a1ad4e8	PR opened

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