There are two distinct aspects to the question of the relationship of energy to the power of the sun. First there is the heat gain from the sun to those surfaces of the building which are insolated, for the most part on the south elevation but with some additions to east and west. This can be a useful addition to the heating of the building in the winter, but on the obverse side can produce overheating in the summer, which must be dealt with.
This however is not a matter to be dealt with under the heading of daylighting, it being more concerned with the heating and ventilation equation.
The second aspect, is very much one of daylighting; that of the use of the sun to generate power by means of solar panels or photovoltaics, this is an aspect of the relationship of the sun to energy, and a growing technology.
Despite the fact that we lack the climate to provide large quantities of solar power (as for example in Israel, where solar panels generating power are the rule on properties rather than the exception) the conversion of the sun's energy into useful power has been shown to be effective.
The building industry has a long way to go before the technology already available makes a substantial impact, but as the energy crisis becomes closer the means will be found (see Lighting Modern Buildings, Case Study No. 11. The Solar Office at Doxford International Business Park). It has been shown that some 30 per cent of the energy required for an office building can be provided by means of photovoltaic panels, provided that the orientation and construction of the building has been planned for it.
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Do we really want the one thing that gives us its resources unconditionally to suffer even more than it is suffering now? Nature, is a part of our being from the earliest human days. We respect Nature and it gives us its bounty, but in the recent past greedy money hungry corporations have made us all so destructive, so wasteful.