"The EPA requires me to monitor, they didn't say I had to spend a fortune doing it!"  - JT Facility Manager
Wunderlich-Malec's, PowerEMS (Emissions Monitoring Solution), is a highly accurate, low-maintenance software-based method of performing continuous emission monitoring for a number of different types of emission units.  

The solution does not rely on hardware emissions analyzers and analyzers specialist are not required to maintain and calibrate its operations. Costly calibration gases and spare parts are not required to be maintained on site because they are no longer needed.  Further, since there are no mechanical parts to wear out, PowerEMS solutions do not have catastrophic hardware failures. 

How the solution works is by grouping of parametric models that exhibit full equivalency to a hardware continuous emissions monitoring system (CEMS).  This equivalency is demonstrated by passing a more rigorous statistical certification test than that required to approve hardware CEMS.  

​The solution saves money and costs less for initial investment because the lack of shelters, air conditioning, heated sample lines, etc.  A ROI of 12-18 months is standard when switching to a software based solution, like PowerEMS. 

No Calibration Gases, No Spare Parts, No Climbing Stacks
Typical hardware Continous Emission Monitoring (CEMS) vs. PowerEMS Predictive Emission Monitoring (PEMS)
A typical dry extractive Continuous Emission Monitoring System (CEMS).  This is used to monitor emission from a combustion source burning natural gas, oil and other types of gases or liquids.  

Combustion is monitored using a probe fixed in the side of the upper top of the stack.   The probe draws a sample of emissions into the system and then sent down a sample line to a series of equipment to remove particulates and moisture. 

The sample is then sent to a series of analyers designed to measure the constiuents of the sample and use it to estimate the level of emissions being imited.  
Using a Wunderlich-Malec PowerEMS Predictive Emissions Monitoring Solution (PEMS) eliminates all the hardware that is used with a typical hardware CEMS.  

Combustion unit sensors (ie. temp, flow, presure) are used to calculate the emisions on a real-time basis.  

This allows the operators a clear understanding of what continuents are being emitted to the atmospher.  A do not exceed limited is established that typically is at the top range of the unit and a series of alarms are triggered so that the opperator is able to make corrective actions needed. 
"With our remote access tool, Environmental Managers have the ability to remotely monitor their emissions data in real-time no matter where it is located."
Frequently Asked Questions
  1. In 2009 the US EPA approved the use of Predictive Emissions Monitoring Systems (PEMS) and created the following guidelines. For units operated under 40 CRF, Part 60 they created a Performance Specification like they have for hardware analyzers. The Performance Specification #16 is designed for PEMS and details the requirements for the operations, certifications and RATA testing requirements needed to install, maintain and perform yearly re-certifications.
    Has the EPA approved the use of PEMS?
  2. Because PEMS do not require calibration gases, sample lines, probes, chillers, spare parts and many other items that a traditional Continuous Emission Monitoring System requires, the reliability is greater. The system uses existing sensors from your combustion source to provide real-time emissions values. This eliminates the worry about all the mechanical moving parts involved in a traditional CEMS system.
    Are PEMS as reliable as CEMS?
  3. No. It was designed to work with a wide variety of historians, PLC's and DCS's which eliminates the need for additional hardware to install and operate. It is simple and easy to use and provides many additional benefits that hardware CEMS can not provide.
    Do I need additional hardware?
  4. Yes. The solution is a complete monitoring system that provide a standard Data Acquisition System (DAS) that meet the US EPA and additional requirements for all 50 states. The DAS comes with standard reporting preloaded and developed to make your life easier. However, if you would like additional custom reports or additional custom functionality, then our engineers are able to design a more customized system to meet your needs.
    Does your solution include the DAS?
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