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Paul Phare Real Alternatives

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Global Warming Energy Security. Three of the top four spend is sensitive to energy costs ... Shadow Flicker. Good buy back price for installations less than 10kW ... – PowerPoint PPT presentation

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Title: Paul Phare Real Alternatives


1
Paul Phare Real Alternatives e
paul_at_real-alternatives.co.uk t 01546 870266 m
0777 5705374
2
Global Warming Energy Security
3
Three of the top four spend is sensitive to
energy costs
4
  • Low income families are put under the greatest
    pressure
  • Increase in fuel poverty
  • Less disposable income
  • Decline in the economy?

5
  • Reduce the amount of energy used
  • Education
  • More efficient use of fuel
  • Better home design/improvement in existing homes
  • Low energy lighting
  • Use renewable sources of energy
  • Solar Panels
  • Wood Fuel
  • Use waste heat

6
First Measure It!
7
1970s Construction
  • 120m2 Semi-detached house
  • Electric Storage Heaters
  • Replacement double glazing
  • Standard electricity tariff
  • SAP 12
  • Annual Carbon Emissions 12.75 tonnes

8
Reduce Energy Losses
  • Carry out an energy survey
  • Increase thickness of loft insulation
  • Draught Proof
  • Cavity fill walls
  • Internal Dry-lining of external walls
  • External insulation
  • Grants from Electricity Utilities EEC2

9
Current Building Standards
  • 120m2 Semi-detached house
  • Natural Gas Central Heating
  • Standard electricity tariff
  • SAP 81
  • Annual Carbon Emissions 2.5 tonnes

10
Carbon Neutral Home
  • 120m2 Semi-detached house
  • Wood Pellet boiler or Biomass DHS
  • Super insulation
  • Triple-glazed low-e windows and doors
  • Heat recovery ventilation
  • 3000 units of electricity generated per annum or
    a good green energy tariff
  • SAP 95
  • Annual Carbon Emissions 0 tonnes

11
Embedded Carbon
  • Use of sustainable timber
  • Reduced use of cement
  • Recycled paper or sheeps wool insulation
  • Use of recycled building materials
  • Use of local materials

12
Behavioural Change
13
On-Site Renewable Energy
  • Expensive to install
  • /tonne of carbon saved less than energy
    efficiency measures
  • Not an evenly distributed resource
  • No one-size-fits-all solution
  • Expertise required
  • To achieve carbon neutrality requires either
    on-site renewable energy and/or cleaner
    electricity

14
Heat Pumps
  • Ground, water, air source
  • Most efficient form of space heating 400
  • Not necessarily the cheapest
  • 8p/kW vs 2.5p/kW for natural gas
  • Not necessarily the most environmentally friendly
  • 0.92kgCO2/kWh vs 0.19kgCO2/kWh for gas
  • Best used in efficient modern buildings with
    underfloor heating that are off the gas grid

15
Groundsource Heat
16
Solar Water Heating
  • The least expensive renewable technology on the
    market
  • Possible to fit on most houses
  • Very low operating costs
  • Most usefully applied to buildings with high
    demand for hot water during the summer
  • Increases your SAP rating

17
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18
Wind Power
  • Very site specific Good return on a windy site
  • Sensitive to average wind speed of site 2 X
    wind speed 8 X power
  • Sensitive to size Cube relationship between
    power and swept area
  • Planning Permission
  • Environmental issues
  • Noise
  • Shadow Flicker
  • Good buy back price for installations less than
    10kW
  • Not ideal for individual homes unless remote

19
Wind Power
20
(No Transcript)
21
Biomass
  • Wood Chips
  • Dependant on a good local supplier of wood fuel
  • Moisture content
  • Delivery mechanism
  • Depends on scale of project
  • District heating scheme of at least 50 houses
  • Grants
  • SCHRI, SBSS, Big Lottery
  • ESCO contracts
  • Wood Pellets
  • More suitable for individual homes
  • Requires a local distributer

22
(No Transcript)
23
Biomass
  • Wood Chips
  • Dependant on a good local supplier of wood fuel
  • Moisture content
  • Delivery mechanism
  • Depends on scale of project
  • District heating scheme of at least 50 houses
  • Grants
  • SCHRI, SBSS, Big Lottery
  • ESCO contracts
  • Wood Pellets
  • More suitable for individual homes
  • Requires a local distributer

24
Integrated Hybrid Energy Systems
25
Port Charlotte Community Centre
  • 6kW Proven Wind Turbine
  • 15m2 of Solar Panels
  • 16kW twin compressor Ground Source Heat Pump
  • Heat Recovery Ventilation
  • Fully integrated Control system
  • Specific heat-loss 533W
  • TOTAL COST 125,000

26
In Summary
  • Survey Existing homes and target heat-loss
  • For new build Design right, built tight!
  • Procure Sustainable Materials where practical
  • Encourage Behavioural Change
  • Appropriate Renewable Energy Technology

27
Our Future?
28
  • Sustainable Social Housing

Paul Phare Real Alternatives e
paul_at_real-alternatives.co.uk t 01546 870266 m
0777 5705374
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