EXELE’s CEMS based / Environmental DAS / RTU systems provide flexible solutions for your data intensive, process related environmental compliance requirements whether they be driven by CFR 40, Parts 60 and 75, Title V with reasons/actions and EDR, MACT (Maximum Achievable Control Technology), Southern California RECLAIM (Regional Clean Air Incentive Market) or other similar regulations.

Download our CEMS overview and datasheet document (PDF)

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EXELE is an OSISoft Partner and uses PI as the Emissions Monitoring and Reporting Platform.

EXELE CEMS software currently collects, stores, processes,
and reports data for hundreds of sources at these facilities:

Valero Wilmington		BP-ARCO (LAR, Watson CoGen, Calciner)
Tesoro (LA, SLC, Anacortes)		ExxonMobil (Torrance)
Southern California Gas (Aliso Canyon, Honor Rancho)		Paramount Petroleum
San Diego Gas & Electric		Wasatch Integrated (Layton, UT)
National Gypsum (LBP)		Novelis (4 sites: NY, KY, GA)

Real Time acquisition of raw data into the historian:

• Raw data, analyzer status from PLC’s, DCS’s, CEMS controllers.

• Calibration gas values, maintenance status, faults.

• Overrides, Heating Values, F factor, Moisture.

Raw data validation, range, in-control & roll-up to 15 minute averages or 6 minute averages (opacity):

• Real time.

• Retrospective - recalculation capability.

• Drift Correction.

Evaluation of 15 minute data validity:

• Immediate Notification of invalid data, analyzer faults, Out-of-Control (OOC).

• Prompting for Reason & Action (R & A) inputs for monitoring equipment malfunctions and exceedances.

Hourly and block average roll-up:

• Immediate notification of exceedances - emission, concentration, opacity.

• Prompting for R & A inputs for monitoring equipment malfunctions and exceedances.

• Missing data procedures, if required.

Aggregation of hourly and block data to daily, monthly and quarterly values by emission source and/or facility.

Automatic data transmission and reporting to regulatory agencies:

• Production of operational and compliance reports (i.e.: EDR’s).