Topic: Different energy forms urged

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Different forms o£ energy supply for the Rolleston new town should be investigated and the opportunity to make use of solar systems kept open, the Rolleston planning group says. Source: Christchurch Star, Wednesday, October 8, 1975

This is one of the recommendations in the study of water supply, sewage disposal, stormwater disposal, energy supply, refuse disposal, surface water use, roading and the layout of  services for the new town.

The group wants all services to be laid underground as the town is developed to avoid any conflict with landscaping. The group says electricity from the national grid should be supplied immediately to the site of the new town. However, a comprehensive economic and feasibility study should be undertaken to cover the compatibility of the different modes of energy supply and use, their comparative efficiencies and the conservation of resources. The opportunity to make use of solar energy systems should be kept' open especially as this represents a truly renewable energy resource.

The group also recommends that construction of buildings incorporate comprehensive use of insulation materials and methods. Landscaping and planting should be done at an early stage to develop a favourable microclimate which would cut down energy use. Public transport' which conserves energy resources should also be encouraged and adopted, the group said.

The study says there are two options available for the disposal of effluent from the new town - disposal to the sea off Banks Peninsula or Lake Ellesmere and the disposal or re-use on the land. The short-term requirements of the developing town should be met by temporary treatment works situated on the site and possibly disposing of treated effluent by irrigation of a suitable land area. Techniques of sewage treatment are to be investigated and options kept open to re-use the treated effluent as an aesthetic, recreational or industrial resource or for irrigation.

The group says about 20m cubic metres of water will be needed when the population of the new town reaches 40,000 and 60m when it reaches 60,000. Water existed in relative abundance in the area in the form of surface water in the river and' ground water in gravels. Initially water will be supplied for the new town from ground water on the site and the study says this should be considered as the most appropriate source in the future.

Filling land with refuse as commonly practiced would be unacceptable. Two options .were available: the incorporation of Rolleston into a regional refuse disposal scheme which would include Christchurch or a municipal composting system. Existing county road construction standards are sat-. .isfactory for the new town but the group said consideration would be given to more informal detailing, particularly on minor roads and cul de sacs.

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