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shsms merged 1 commit into from
Oct 7, 2026
+6 −10
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Bump component-graph to 0.6.0 #1467

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14 changes: 5 additions & 9 deletions RELEASE_NOTES.md
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## Summary

<!-- Here goes a general summary of what this release is about -->
This release updates the microgrid component graph library to v0.6.0, which stops clamping the consumer and producer formulas. Consumer power can now be negative, and a producer that draws power now makes the producer total less negative instead of counting as zero.

## Upgrading

<!-- Here goes notes on how to upgrade from previous versions, including deprecations and what they should be replaced with -->
- The minimum supported version of [`frequenz-microgrid-component-graph`](https://github.com/frequenz-floss/frequenz-microgrid-component-graph-python) is now [v0.6.0](https://github.com/frequenz-floss/frequenz-microgrid-component-graph-python/releases/tag/v0.6.0), which stops clamping the consumer and producer formulas. This changes the values streamed by `microgrid.consumer().power` and `microgrid.producer().power`.
- Consumer power used to be clamped at zero. It can now be negative, for example when unmodeled production or a measurement mismatch is larger than the consumption. To get the old result, use `consumer.power.max(Power.zero()).build("consumer_power")`.
- Producer power used to clamp each producer at zero. A producer that draws power now adds a positive value instead of zero, so the total can be positive. For example, PV producing 10 kW and a CHP drawing 2 kW used to give -10 kW and now give -8 kW. There is one exception: when the two share a meter below the grid meter, that meter sends data, and `disable_fallback_components` is off, the meter measures them together, so they gave -8 kW before too. `producer.power.min(Power.zero()).build("producer_power")` clamps the total at zero, but it still differs from the old result when one producer draws power while another produces.
- With `ComponentGraphConfig(include_phantom_loads_in_consumer_formula=True)`, consumer power is unchanged: it still clamps each of its terms at zero.

## New Features

<!-- Here goes the main new features and examples or instructions on how to use them -->

## Bug Fixes

<!-- Here goes notable bug fixes that are worth a special mention or explanation -->
2 changes: 1 addition & 1 deletion pyproject.toml
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Expand Up @@ -30,7 +30,7 @@ dependencies = [
# changing the version
# (plugins.mkdocstrings.handlers.python.import)
"frequenz-client-microgrid >= 0.18.3, < 0.19.0",
"frequenz-microgrid-component-graph >= 0.5.0, < 0.6",
"frequenz-microgrid-component-graph >= 0.6.0, < 0.7",
"frequenz-client-common >= 0.3.6, < 0.5.0",
"frequenz-channels >= 1.6.1, < 2.0.0",
"frequenz-quantities[marshmallow] >= 1.0.0, < 2.0.0",
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