Attached sunspaceconservatory

This has become a popular feature in both new housing and as an addition to existing homes. It can function as an extension of living space, a solar heat store, a preheater for ventilation air or simply an adjunct greenhouse for plants (Figure 5.7). On balance it is considered that conservatories are a net contributor to global warming since they are often heated. Ideally the sunspace should be capable of being isolated from the main building to reduce heat loss in winter and excessive gain in summer. The area of glazing in the sunspace should be 20-30 per cent of the area of the room to which it is attached. The most adventurous sunspace so far encountered is in the Hockerton housing development which will feature later (Chapter 8 and see Figure 5.4).

Ideally the summer heat gain should be used to charge a seasonal thermal storage element to provide background warmth in winter. At the very least, air flow paths between the conservatory and the main building should be carefully controlled.

Renewable Energy 101

Renewable Energy 101

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.

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