Combined heat and power (CHP) for hospitals

Customer project focused Installation design

Project management

Installation works

Commissioning

Maintenance

Parts stockholding

Product quality focused Engine design

Engine development

Engine manufacture

Parts production

Company history

2012Distribut

or for Tanzania

UK Banglades

h

France

Aus-tralia

India Nige-ria

South

Africa

China

New Zea-land

Irish Re-pub-lic

Tan-zania

Tunisia

Chile Mo-rocco

Italy Kenya

0

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200

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400

500

600

700

800

900

1000

SG - Methane Rich GasSG - FurnaceSG - GasificationNG - Peaking stationsNG - HospitalsNG - GreenhousesNG - Industrial NG - ResidentialNG - CommercialNG - IPPCG - WMMCG - AMMCG - CSG/CBMBG - SewageBG - LandfillBG - WastesBG - AgriculturalAG / flare gas

46.8 UK50.5 France9.0 Australia106.3 MW Total (270k+ homes equivalent)

Gas engine and combined heat and power (CHP) technology

Fuel (100%)

Electricity for

transmission (35%)

Generation/heat losses (65%)

Conventional Power Plant

Gas-fuelled CHP plant

90% Efficiency

Generation/heat losses (10%)

Fuel (100%)

Electricity (45%)

Useful Heat (45%)

Transmission Losses (1.5%)

Supplied electricity

(efficiency) 33.5%

1.80 kWh loss4.05 kWh

1.00 kWh electricity

1.25 kWh heat

Grid electricity

Boiler

1.47 kWh

2.58 kWh

2.5 kWh

Primary Energy Supply 1.00 kWh electricity

0.25 kWh losses

1.25 kWh heat

CHP engine

0.520kg CO2

0.270 kg CO2

0.790 kg CO2

0.460 kg CO2

42% CO2 reduction

38% Primary Energy Savings

2.08 kWh loss4.33 kWh

1.00 kWh electricity @ 8.42p/kWh

1.25 kWh heat

Grid Electricity

Boiler1.47 kWh gas @ 2.40p/kWh

2.86 kWh

2.5 kWh @ 2.31p/kWh

Primary Energy Supply 1.00 kWh electricity

0.25 kWh losses

1.25 kWh heat

CHP engine

8.42p

3.53p

11.95p

5.78p

45% cost reduction

Maintenance @ 0.84p/kWh

6.62p

Greater Savings

Greater Running Time

Sensitive Analysis

Safe Option

Oversized?

Jan Dec

A selection of case studies for the hospital CHP sector

Client: Nifes

Commissioned: July 2009

1 x J620

3MWe

Engines in tight space at behind existing boilers

Client: Nifes

Commissioned: July 2009

1 x J620

3MWe

Exhaust heat generates steam

International CHP showcase

Together save Foundation Trust

11,300 tonnes CO2 per year and £1.5m in energy costs

Client: NG BaileyCommissioning: Aug 20111 x J4201.4MWe & 1.4MWth

Higher noise attenuation specificationA particularly difficult install!Container on the roof!

Client: DalkiaCommissioning: May 20051 x J6162.2MWe & 2.3MWth

£70m redevelopment to improve services including CHP.

Natural gas J6121.8MWeExhaust heat fed into boiler to generate steam

Client: DalkiaCommissioning: Nov 1997 & Jul 20082 x J612 & 1 x J420 4.4MWe & 4MWth

2 replacement sets on order.

Client: CarillionCommissioning: Feb 2008

2 x J6123.3MWe & 2.7MWth

1.2MWth as hot water

1.5MWth as steam

Senator PointSouth Boundary Road Knowsley Industrial Park Liverpool L33 7RR alex.marshall@clarke-energy.com+44 (0)791 706 6242

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