microCHP, A Present Day Reality

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micro-CHP, A Present Day Reality
Martyn Coffey, CEO Baxi Group Energy and
Environment 2008 Securing our Low Carbon Economy
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The need for micro-CHP

• Climate change / energy efficiency actions
• Promote Cogeneration
• Tackle increased consumption
• Reduce dependency on fossil fuels from outside
  borders
• Supply
• Additional / replacement capacity required as
  reactors are decommissioned
• Energy is required from low carbon/renewable
  sources
• Carbon emissions
• 75 of emissions in the home come from heating
  and hot water

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The benefits of micro-CHP

• Better efficiency through local generation of
  energy and displacement of primary energy from
  grid network
• Feeling of independence from electricity network
• Fuel savings for the end user
• Carbon savings for the end user and for the
  Government to achieve carbon targets

EXHAUST 5
GENERATION 15-40
GRID ELECTRICITY IMPORT / EXPORT
HEAT 55-80
Fuel 100
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Baxi micro-CHP technologies

• Use in light commercial and large residential
  applications
• Baxi DACHS mini CHP
• Functional principle internal combustion engine
• Performance data 5.5 kWel, 12.5 kWth (CHP)
• Auxiliary heating device 15.0 kWth
• Wall hung mico-CHP appliance for use in
  residential applications
• Baxi Ecogen
• Functional principle Stirling engine (linear
  free piston Stirling engine)
• Performance data 1.0 kWel, 6 kWth
• Auxiliary heating device 18 kWth
• Floorstanding Application in residential
  applications
• Baxi Innotech Fuel Cell heating unit BETA 1.5
  PLUS
• Functional principle LT-PEM fuel cell
• Performance data 1.5 kWel, 3.0 kWth
• Auxiliary heating device 15.0 kWth

TODAY
TOMORROW
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Baxi DACHS mini CHP

• Over 18,000 installations across Europe
• Annual sales volume per year gt 2,500 units
• 29 Baxi SenerTec Centres and 350 Centre Partners
  in Gemany
• More than 20 years experience in the field of
  mico-CHP

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Baxi DACHS Natural Gas Model HKA-G
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Range of applications
thermal
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NEW Baxi Ecogen
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Baxi Ecogen Product Specification
Electrical power 1 kWe (modulates below
6kWth) Thermal power 3 - 24 kWth Total
efficiency 91 Grid connection 230 Volt / 50 Hz
Dimensions 950 x 450 x 425mm Noise 45
dB(A) Weight 110kg Flow temperature 50/82C Retu
rn temperature 30/70C
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At what stage of development is Baxi Ecogen?
Series entry programme 2009
Pre-series 150 units Q4 2008 Development/customer
field trial programme
ß-unit 25 units Oct/Nov 2007 4 units on
laboratory test 9 units on endurance test 12
units on field test
a-unit 11 units Dec/Jan 2006 2 units on
laboratory test 6 units on endurance test 3 units
on field test
2009
2008
2007
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What are the benefits of Baxi Ecogen?

• Wall-hung micro-CHP appliance
• Easy replacement for todays condensing boiler
• Provides end-user with economic savings on annual
  fuel bill
• Provides carbon savings through the generation of
  electricity at the point of use

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Baxi Ecogen Carbon savings

• Based on typical annual runtime hours, Baxi
  Ecogen can save 0.3tC/yr compared to condensing
  boiler
• Baxi Ecogen can save typically 1tC/yr compared to
  a permanent pilot boiler
• If all permanent pilot boilers were replaced,
  this could save 4MtC/yr.
• This equates to 30 of the total domestic sector
  target to be achieved by 2020

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Case studies Field Trials

• Electricity
• 23 week period
• Electricity demand 2060 kWh
• 1205 kWh generated by boiler (60 of demand)
• 615 kWh exported to grid

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Baxi Fuel Cell technology

• With PEM (polymer electrolyte membrane) fuel
  cell, modulating operation is possible as and
  when it is required with high electrical
  efficiency
• Contribution to relief of environment (CO2
  advantage)
• Short start-up times guarantee a long operation
  period
• Amortisation is possible due to power generation
• After development and launch, with help of a
  market entry program - is no need for further
  subsidy

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Baxi Fuel Cell Field Test unit

• Electrical output, kW 1.5
• Thermal output, kW, (CHP1) 3.0
• Electrical efficiency, , (CHP) 32
• Total efficiency, , (CHP) 85
• Auxiliary boiler design operation, kW 3,5 15
• Flow temperature (opt./max.), C 60/65
• Return temperature, C 40/55
• Noise emission, db(A) lt 50
• Fuel varieties H-, L-gas, biogas
• Electrical connection, V / Hz 230 / 50
• Dimensions, mm (WxDxH) 1000 x 730 x 1850
• Weight, kg 350

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Primary energy demand of different heating
technologies for a low energy single family home
according EnEV 2009
Heating technologies rated according DIN 4701-10
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The Full Range of Possibilities

• The full BAXI technology range provides the right
  solution for a wide range of applications with
  each technology best suited to achieve energy
  efficiency and CO2 savings depending on the
  environmental or installation conditions
• Heat demand
• Radiator surface
• Hydraulic installation
• Space requirement
• Total investment budget
• Future CO2 saving targets
• Future energy efficiency target
• Government funding
• Baxi DACHS mini CHP
• Best solution for commercial applications or
  larger homes with high heat demand
• Baxi Ecogen
• Best solution for the replacement market
• Baxi Fuel Cell Heating
• High efficient future micro-CHP system for
  residential dwelling

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The market leaders inmicro-CHP technologies