Large combustion plant emission monitoring

The advanced solution for emission monitoring and reporting of large combustion plants is based on the Valmet DNA information system. The solution produces all the necessary information both for the plant’s own needs and for the authorities.

The concentration calculations [mg/m3(n)] are usually done at the one-minute level and the average calculations at the levels required in the directive (one hour, 24 hours or 48 hours, one month). The minute values are corrected by the calibration function defined in QAL2-reference measurements. The validity of the signals is checked. In addition, the measurement device status is checked and reported separately (disturbance, maintenance or testing). Measured values are reduced to standard conditions  and to the oxygen level defined in the environmental permit. Also, the subtraction of 95 % confidence value can be made if allowed.

The calculation package includes also the emission forecasts, accumulative and moving averages as support tools for effective emission controlling of power plant.


  • Enables effective authority reporting, but also serves the plant itself as an operative tool
  • Is integrated in process control, which enables actual, even proactive emission management (real-time emission data, accumulative values, emission forecasts etc.)
  • Saves time and makes the emission data more usable and reliable
  • Enables long-term reporting and follow-up of trends
  • Enables quick reaction and efficient analysis in disturbance situations

Efficiency and safety go hand in hand

Advanced plant-wide automation, optimizing controls and plant management applications, topped with close cooperation with Valmet, ensure that Kuopion Energia Oy’s Haapaniemi CHP power plant operates efficiently and safely.