EMOS® Cell Performance Analyzer Service


High Current Efficiency (C.E.) is key to profitable chlor-alkali production. Being able to determine how each of your cells are performing in terms of Specific Power Consumption (SPC) gives you the edge needed to get ahead in this competitive field.

We provide the ability to gain this edge by giving you a window into your asset data in order to effectively predict and characterize each component of an electrolyser (anode, cathode and membrane).

Make the best replacement decision

We recommend that you base your decision to replace or to keep a component on the individual economic performance of each component and the cost of replacing it. If a component costs more to operate than to replace, it should be part of your next maintenance program. If not, it should be kept in place. This means:

  • Get rid of underperformers = Higher Current Efficiency = Energy Savings and/or More Output
  • Keep your over-performers = Extended Component Life Time = Lower Maintenance Costs

The EMOS® Cell Performance Analyzer (CPA) is a service which determines the precise performance and economics related to the operation of electrodes (U0, k-values) and membranes (k-value, C.E.) of single electrolysis cells.


The following case study used a new plant with 8 electrolysers over a 10 year period. Each electrolyser has 175 cells, for a plant total of 1400 cells.

The first graph shows the savings in Specific Power Consumption (SPC), with and without R2’s EMOS® Cell Performance Analyzer. The second graph displays the annual financial savings for different energy prices, over a 4 year period. The last diagram shows the reduction in replaced components from a total of 2880 components replaced after 8 years without R2, down to 1630 components replaced after 8 years with EMOS® Cell Performance Analyzer.

Energy consumption with and without R2 over 10 years

Net savings per year based on energy cost, with R2

Total components replaced afer 8 years, with and without R2

EMOS® Cell Performance Analyzer Datasheet

There is a point where replacing one or more underperforming elements is cheaper than needlessly leaving them in operation. Identifying and characterizing these elements is an absolute pre-requisite for predictive maintenance…


White Paper

The Best Maintenance Strategy for Membranes and Electrode Coatings in Chlor-Alkali



How to Save Energy and Increase Production with a Better Maintenance Strategy


Case Study: Remembraning and Recoating Optimization at Vestolit

Vestolit, a major chlor-alkali producer, shares how predictive maintenance (EMOS® Cell Performance Analyzer) helps them save maintenance costs for membrane/electrode replacement.