heating	cooling	daylighting	ventilation	hot water	electricity
sun	passive solar heating	solar shading	natural illumination solar shading		solar hot water ⚒	solar power ⚒
earth	earth coupling	earth coupling			geothermal hot water ⚒
water		natural cooling
wind		natural cooling		natural ventilation		wind power ⚒
sky		natural cooling
waste flow	transmission heat recovery ventilation heat recovery ⚒				effluent water heat recovery ⚒

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