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Requirement :
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Costs of heating and lighting, to improve the quality of the packaging structures and the internal thermal comfort. (6 measures to reduce energy consumption) will be the replacement of the openings, the insulation of the envelope, the insulation of the roof, the measurement, the control and the regulation of the energy consumption, the replacement of the light sources, the installation of the photovoltaic system .. A detailed specification is given in the PD which is part of the tender documents.
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