
24-10-2008
For those of you interested in zoo buildings, this is from Paignton's website:
Paignton Zoo Environmental Park, which is holding its first Green Solutions Festival between Tuesday 28th and Thursday 30th October, has found its own green solution to keeping crocodiles in tropical luxury.
Crocodile Swamp is home to three species of crocodiles as well as turtles and giant snakes. The water in the pools is maintained at 25C, whilst the air temperature is kept at a minimum of 22C. But the Zoo has worked hard to make the spacious 500 square metre glasshouse as environmentally efficient as possible.
Paignton Zoo Clerk of Works Adi Board, who supervised the project, said: “The exhibit makes maximum use of natural light and passive solar gain, employs materials such as high efficiency polycarbonate cladding and thermal screens to reduce heat loss, and solid walls to absorb and retain heat.”
Crocodile Swamp is heated by renewable energy, using a wood fuel biomass boiler to meet 80% of the heating requirements. Curator of Plants and Gardens Kevin Frediani said: “Although the equipment costs more than conventional oil or gas boilers, as renewable energy technology it qualifies for a grant from the Low Carbon Buildings Programme, a government scheme to support the installation of renewable energy technologies. More and more wood fuel systems are being used as an alternative to conventional fuel systems.
“The boiler uses wood chips or pellets as fuel, burning between 50 and 70 tonnes annually. The Zoo hopes to use its own chipped waste timber and also local forestry thinnings – this way we buy local and help to support the local economy.”
The boiler can hold 100 cubic metres of woodchips. A small amount of ash is produced as waste - this is mixed with green waste and sent for composting.
Kevin added: “The running costs are less than half that for an oil or gas boiler and we’ve reduced our environmental impact as a result of using a renewable source of fuel. Compared to an oil-fired boiler, we save over 74 tonnes of CO2 each year – that’s over 740 tonnes saved over the next ten years, a significant contribution towards reducing Paignton Zoo’s environmental footprint.”
Crocodile Swamp cost £1.5 million. The project has been part-financed by a grant from the European Regional Development Fund (ERDF). The Zoo is a registered charity.
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