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2. Packaged terminal air conditioner - Wikipedia

   en.wikipedia.org/wiki/Packaged_terminal_air...

   Packaged terminal air conditioner installed in a residential apartment. A packaged terminal air conditioner (PTAC) is a type of self-contained heating and air conditioning system intended to be mounted through a wall. [1] The first practical semi-portable air conditioning unit invented by engineers at Chrysler Motors. It entered the market in ...

3. Recreational vehicle terms - Wikipedia

   en.wikipedia.org/wiki/Recreational_vehicle_terms

   A gasoline, diesel or propane-powered device for generating 120 or 240 volts AC electrical power for use when boondocking or dry camping. Generators are rated by their electrical output, usually in watts. A minimum generator size for a small RV would be 1500 to 2000 watts. To run an RV air conditioner, a minimum of 3,000 watts is usually needed.

4. Seasonal energy efficiency ratio - Wikipedia

   en.wikipedia.org/wiki/Seasonal_energy_efficiency...

   Air-conditioner sizes are often given as "tons" of cooling, where 1 ton of cooling equals 12,000 BTU/h (3.5 kW). 1 ton of cooling equals the amount of power that needs to be applied continuously over a 24-hour period to melt 1 ton of ice. The annual cost of electric energy consumed by an air conditioner may be calculated as follows:

5. Cost of electricity by source - Wikipedia

   en.wikipedia.org/wiki/Cost_of_electricity_by_source

   In the United Kingdom, a feed-in tariff of £92.50/MWh at 2012 prices (currently the equivalent of €131/MWh) [107] plus inflation compensation was set in 2013 for the new nuclear power plant to be built at Hinkley Point C, with a term of 35 years. At that time, this was below the feed-in tariff for large photovoltaic and offshore wind plants ...

6. Micro combined heat and power - Wikipedia

   en.wikipedia.org/wiki/Micro_combined_heat_and_power

   The reason for using CHP systems is that large thermal power plants which generate electric power by burning fuel produce between 40% and 60% low-temperature waste heat, due to Carnot's theorem. [4] The temperature produced by this waste heat (around 80 °C - 150 °C) does allow it to be used for space heating purposes, therefore in some urban ...

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