UK-based combined heat and power (CHP) plant manufacturer 2G Energy this week announced the launch of a new range of low-emission systems.

According to the company, the systems range from 20 kWe to 240 kWe and emit 90 per cent less NOx than standard units.

2G says new NOx reduction technology means the CHP systems emit less than 45 mg/Nm3 at 5 per cent O2, almost 50 per cent less than the most stringent emissions limits set by the UK’s Building Research Establishment Environmental Assessment Method (BREEAM) and the new Greater London Authority (GLA) Sustainable Design and Construction guidelines. It is over 90 per cent less than the standard accepted limit of 500 mg/Nm3 at 5 per cent O2.

The company added that since the NOx reduction technology is an internal part of the units’ exhaust gas system, neither the additional external equipment nor the size of the CHP system will change.

For lower NOx emissions, or to cover the remaining turbo-charged CHP fleet, the firm is offering a newly developed selective catalytic reduction (SCR) system to provide NOx levels as low as 10 mg /Nm3.

The company said the new range was designed to address the costs involved with having to shut down CHP plants due to failed NOx emissions tests as emissions standards become ever more stringent.

Mark Holtmann, head of sales and project management at 2G Energy in the UK, said: “Offering the complete range of NOx reducing technology within our CHP package makes a significant difference to the usual CHP systems on the market.

“Customers can control the CHP and the SCR with the same control – there are no interface issues, and no different dial-in procedure is required for the 2G solution.”