The principal thermal mass effect on heating and cooling systems serving spaces in heavyweight buildings is that a greater amount of thermal energy must be removed or added to bring the room to a suitable condition than for a similar lightweight building. Therefore, the system must either start conditioning the spaces earlier or operate at a greater output. During the occupied period, a heavyweight building requires a lower output because a higher proportion of heat gains or losses are absorbed by the thermal mass.
Advantage can be taken of these effects if low-cost electrical energy is available during the night so as to operate the air-conditioning system during this period to pre-cool the building. This can reduce both the peak and total energy required during the following day but might not always be energy efficient.
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Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.