Renewable energies in the Harris Centre, Walford Campus - Jon Parry

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This presentation formed part of the Farming Futures workshop "Focus on Renewable Energy".

West Midlands (24th September 2008)

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Renewable energies in the Harris Centre, Walford Campus - Jon Parry

  1. 1. Renewable Energy Technologies in the Harris Centre, Walford Campus Jon Parry
  2. 2. “Tell me and I will forget, show me and I may remember, involve me and I will understand” Native American Proverb
  3. 3. The Walford campus has a long tradition of delivering education to land-based industries land- and this has always included an element of “green” practices such as composting and conservation, and in 1993 the installation of an Anaerobic Digester on the college farm. The opportunity of a new build here allowed us to put renewable technologies and intelligent design at the heart of what we do.
  4. 4. Renewable energy technologies included in the Harris Centre design are Wind turbine Ground source heat pump Photo voltaic cells Wood Chip boiler But the building is successful because of good design and its high level of specification
  5. 5. Wind Turbine Capital cost of £26,540, current annual output 302KWh. The turbine is a Proven 2.5 on a 6.5 m pole and was predicted to generate 2,500 kWh per year Current issues include the turbines location and height
  6. 6. Ground Source heat pump Two Terra heat pumps that can each generate a heat output of 34 kW from a required electric input of 6.3kW There are deep bore holes (110m) and a “slinky” system of pipes in a neighbouring field, the returning liquid is a relatively constant temperature of about 15oC This heat is then processed in a similar way to a refrigerator works (in reverse) and warms the heating system water to about 49oC This heat is then is distributed around the Harris centre via under floor heating.
  7. 7. Photovoltaic cells Capital cost of the photovoltaic cells was £38,782. Current annual output is 2884kWh. There are 30sqm of cells predicted to produce 3200kWh
  8. 8. Woodchip Boiler The Talbott’s Biomass wood chip boiler was installed as a backup system for when additional heat maybe required. The boiler has only been lit twice !
  9. 9. Any Questions ? Jon Parry

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