Read the winter pattern
Compare weather, temperatures, runtime, complaints, and operator notes before drawing conclusions.
PENGAby GlacialRift
For Operators and Power Engineers
Make the building's response easier to read.
PENGA compares weather, plant operation, temperatures, and comfort history. The first job is to explain what the building does before anyone discusses changing it.
Observation first
Operating limits defined
Local fallback retained
Operator review
Questions behind the model
Plant responseHow supply, return, runtime, and weather move together.
Comfort riskWhich loops and conditions run closest to the cold edge.
Local fallbackWhat the existing controller does outside defined limits.
Working with the plant
Observation before intervention.
Operator knowledge explains patterns telemetry alone cannot. We use it to test the model, find bad assumptions, and define what must remain local.
Test the explanation
Check whether the model recognizes warm-up periods, lockouts, problem loops, and known quirks.
Define the later boundary
If a control path is worth examining, define bounded changes to the existing outdoor-reset request and the conditions that return the plant to local operation.
Questions for review
What we want you to push on.
A useful review finds the operating detail the model missed.
- Which measurements are trustworthy enough to explain plant response?
- Which operating modes, lockouts, and manual practices change the story?
- Where are the cold-risk conditions the model must keep visible?
- Which conclusions would be useful in the logbook, and which would be noise?
- What limits and fallback behaviour would a later control path need before it deserved further review?