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  2. Seasonal energy efficiency ratio - Wikipedia

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

    A residence near Chicago has an air conditioner with a cooling capacity of 4 tons and an SEER rating of 10. The unit is operated 120 days each year for 8 hours per day (960 hours per year), and the electric energy cost is $0.10 per kilowatt-hour. What is its annual cost of operation in terms of electric energy?

  3. Assuming you pay 15 cents per kilowatt hour, running your dryer for an hour costs 30 to 90 cents. You can calculate your dryer's cost in three steps: Multiply the number of hours your dryer runs ...

  4. Cost of electricity by source - Wikipedia

    en.wikipedia.org/wiki/Cost_of_electricity_by_source

    More recently, the cost of solar in Japan has decreased to between ¥13.1/kWh to ¥21.3/kWh (on average, ¥15.3/kWh, or $0.142/kWh). [133] The cost of a solar PV module make up the largest part of the total investment costs. As per the recent analysis of Solar Power Generation Costs in Japan 2021, module unit prices fell sharply.

  5. Top5 Ways to Cut Air Conditioner Costs - AOL

    www.aol.com/news/top5-ways-to-cut-ac-costs.html

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  6. Efficient energy use - Wikipedia

    en.wikipedia.org/wiki/Efficient_energy_use

    Following this, if all households in Europe changed their more than ten-year-old appliances into new ones, 20 billion kWh of electricity would be saved annually, hence reducing CO 2 emissions by almost 18 billion kg. [22] In the US, the corresponding figures would be 17 billion kWh of electricity and 27,000,000,000 lb (1.2 × 10 10 kg) CO 2. [23]

  7. Solar air conditioning - Wikipedia

    en.wikipedia.org/wiki/Solar_air_conditioning

    Solar air conditioning, ... the amortized cost of PV-generated electricity can be below $0.15 per kWh. This is currently cost effective in some areas where power ...

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