Paul Phare Real Alternatives

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

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• 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

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First Measure It!
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1970s Construction

• 120m2 Semi-detached house
• Electric Storage Heaters
• Replacement double glazing
• Standard electricity tariff
• SAP 12
• Annual Carbon Emissions 12.75 tonnes

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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

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Current Building Standards

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

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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

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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

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Behavioural Change
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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

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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

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Groundsource Heat
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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

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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

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Wind Power
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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

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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

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Integrated Hybrid Energy Systems
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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

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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

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Our Future?
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• Sustainable Social Housing

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