Running costs with and without a PpTek BioGas Autokleen

Guide for completion

  1. All fields that need to completed are highlighted in yellow.
  2. The numbers already in the cells are those given by a customer in the UK of an actual site he operates
Potential operating income
Target generating hours 20,000
Price sold kW / hr £
Price sold MW / hr £ 60
Maximum generating capacity of engine (kW /hr)
Potential income from generation £ 1,380,000

  Variable Without Filter
1st 10K Hrs 2nd 10K Hrs
Hours before engine derated  
Output when engine derated kW  
Output lost during derating kW   920,000 920,000
Cost of derating in each 10k hr period   £ 55,200 £ 55,200
Cost of Parts for overhaul   £ £
Number of hours of labour for overhaul  
Cost of labour for overhaul / hr £ £ 12,000 £ 12,000
Cost of downtime for overhaul   £ 14,400 £ 14,400
Number of hours between oil changes  
Oil change costs £ £ 8,333 £ 8,333
Number of hours to perform oil change    
Cost of downtime for oil changes   £ 4,000 £ 4,000
Total costs for operating without filter   £ 123,933 £ 123,933
Total running cost for 20k hrs     £ 247,867
Variable With PpTek Filter
1st 10K Hrs 2nd 10K Hrs
Hours before engine derated  
Output when engine derated kW  
Output lost during derating kW   0 1,150,000
Cost of derating in each 10k hr period   £ 0 £ 69,000
Cost of Parts for overhaul   £ £
Number of hours of labour for overhaul  
Cost of labour for overhaul / hr £ £ 2,500 £ 12,000
Cost of downtime for overhaul   £ 3,000 £ 14,400
Number of hours between oil changes  
Oil change costs £ £ 2,778 £ 2,778
Number of hours to perform oil change    
Cost of downtime for oil changes   £ 1,333 £ 1,333
Total costs for operating with filter   £ 14,611 £ 129,511
Total running cost for 20k hrs     £ 144,122


Summary Without Filter With PpTek Filter
Potential income from engine for 20k Hrs £ 1,380,000 £ 1,380,000
Operating costs £ 247,867 £ 144,122
Income after costs removed £ 1,132,133 £ 1,235,878

Savings with mutiple engines 1 Engine 2 Engines 3 Engines
Potential savings/income in 1st 20k Hrs £ 103,744 £ 207,489 £ 311,233
Cost of filter units £ 100,000 £ 120,000 £ 140,000
Savings £ 3,744 £ 87,489 £ 171,233

Please note above filter costs are based on a 1.1mW engine are budgetary and require full gas analysis to be taken before a quotation can be given.

© PpTek 2010