P&ID extraction for power generation.
Outage cycles rebuild the controls baseline every few years. A combined-cycle plant carries 200-500 P&IDs across gas turbine, HRSG, steam turbine, condenser, and BOP, and the tag system on the page depends on whose lineage drafted it.
What power generation drawings carry.
- KKS is the dominant tag system in thermal and renewable plants. KKS, ISA 5.1, and IEC 81346 all read where the project crosses regions
- Combined-cycle plants run 200-500 P&IDs across gas turbine, HRSG, steam turbine, condenser, BOP, and auxiliary loops. Off-page connector matching keeps loops intact
- Pre-startup safety reviews require BPCS and SIS to be reviewable independently. Excel export segments them on separate sheets
- Cooling-water and condenser circuits carry hundreds of valves. Valve list segments control, on, off, relief, and manual valves
- Nuclear balance-of-plant, non-safety-related, non-1E drawings extract normally. Safety-related nuclear documentation operates under a regime this extraction does not replace
- Renewables, solar PV, wind, BESS carry electrical-instrumentation density. Equipment list captures inverters, transformers, and battery racks where the drawing tags them
- District energy and cogen steam, hot-water, and chilled-water loops follow utility-loop patterns from any large facility
- FGD, SCR, and ESP environmental-control drawings carry analyzer density that filters into emissions-monitoring subsets
What the extraction delivers.
- Classified I/O list with AI, AO, DI, DO per instrument
- Master instrument index across the full drawing set with tag-collision detection
- Equipment list. Turbines, generators, HRSGs, condensers, feedwater heaters, pumps
- Line list with size, pipe spec, service, joinable back to instruments
- Valve list. Control, on, off, relief, manual, with fail position and actuator type
- BOP vs SIS separation for safety-system documentation
- Revision comparison for outage planning and pre-startup documentation
Instrument tags on a power generation drawing.
- 10LBA10CT001KKS-style temperature transmitter on a feedwater heater
- PT-CW-4203Pressure transmitter on cooling-water header, area 42, loop 03
- FT-FW-5108Flow transmitter on a feedwater loop, area 51, loop 08
- ZSC-MOV-7305Motor-operated valve closed feedback, area 73, loop 05
- VT-GT-BRG-2204Gas turbine bearing vibration transmitter
- AT-SCR-NOX-3105SCR outlet NOx analyzer feeding ammonia injection control
Regulatory context.
- NERC CIP for transmission-connected generation
- EPA emissions monitoring documentation references P&ID-derived instrumentation
- IEC 61511 for SIS lifecycle on plants where it applies
- Local jurisdictional outage and pre-startup safety review, PSSR regimes
Which discipline reads it.
Electrical EngineersGenerator step-up transformer, switchyard, and auxiliary MV system scope. Protection-relay coordination tag census.Controls EngineersBMS, burner management instrumentation. Turbine and generator control system tag census.Mechanical EngineersSteam turbine, gas turbine, HRSG, and condenser scope. Vibration, axial-position, and bearing-temperature instrumentation.Commissioning and Startup EngineersLoop-by-loop and system-by-system handover against NERC and OEM punch-list scope.
Common questions
Does this work on combined-cycle plant drawing sets.
Yes. CCGT plants run 200-500 P&IDs across gas turbine, HRSG, steam turbine, condenser, BOP, and auxiliary loops. The full set processes as one workspace. Off-page connector matching keeps cross-page loops intact.
How does this handle balance-of-plant retrofits.
Upload the legacy scanned P&IDs and the new revision as separate projects. Revision comparison produces an added, removed, modified diff for the change package. Export the I/O list straight into your DCS or PLC vendor tool.
Is SIS, BPCS separation supported for power plant safety systems.
Yes. SIS-tagged instruments and valves are separated into their own category on export, so safety-system documentation can be reviewed and signed off independently from BPCS for pre-startup safety reviews and regulatory audits.
Can I bring my prior instrument index from the previous outage.
Yes. Upload your existing I/O list or instrument index as Excel, then process the new drawing revision. The reconciliation view shows matched, new on drawing, missing from drawing, and disagreement buckets.
Does it work on renewable and BESS facility drawings.
Yes. Solar PV, wind, and battery-energy-storage drawings extract the same way as thermal-plant drawings. The equipment list captures inverters, transformers, and battery racks where the drawing tags them. Single-line diagrams process as a separate document type alongside the P&IDs.
How is this different from the documentation a nuclear safety-related drawing requires.
Safety-related, 1E and equivalent nuclear documentation operates under a regulatory regime this extraction does not replace. Non-safety BOP scope, turbine, generator, condenser, cooling water extracts the same way as any thermal plant. Use the workspace boundary to keep the scopes separate.
Run it on your power generation drawings.
Upload a P&ID set and see the instruments, equipment, and lines it reads before committing to a plan.