Waste Heat Tax

Forum: SSI-List
Thread: Waste Heat Tax

# 19930 byRaven on June 22, 2004, 3:08 p.m.
Member since 2022-08-22

> Do you think that a Habitat will have a charge for ridding the waste
> heat created by residents?

Dr. O'Neill's Island One design had an area of about 66 square meters per inhabitant, though some of this was windows. So let's say that a space habitat will have at least fifty square meters of land area per inhabitant.
The insolation will probably be about 800 watts per square meter in daytime, implying about 400 watts per square meter in average during a day and night. That is 20 kW of solar energy per person - or more, in habitats with a smaller population density.
The waste heat created by the residents will probably largely be that of electricity usage - cooking, lighting, various appliances such as computers and stereos, washing machines and dishwashers, perhaps electrical vehicles. If the habitat is run with a subtropical climate, tailored to the greatest comfort possible for most people, then fairly little energy will be spent on heating or airconditioning.
Does a three-person home use electricity at a rate that approaches sixty kilowatts, excepting heating and air conditioning? If not, then the waste heat created by residents will be small compared to that created by the sunlight.
Energy for industries are another matter entirely. But they will mostly be located outside the habitat proper, and will have their own waste heat disposal systems. It may well be that industries hook up both to a common power grid and a common waste heat disposal grid, paying for both, finding this cheaper than having their own independent systems.

Jon Lennart Beck.