In the United States, the efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER) which is defined by the Air Conditioning...

Europe, the seasonal efficiency of refrigeration equipment, chillers and air conditioners is often rated by the European seasonal energy efficiency ratio...

system is a ratio of useful heating or cooling provided to work (energy) required. Higher COPs equate to higher efficiency, lower energy (power) consumption...

Heating seasonal performance factor (HSPF) is a term used in the heating and cooling industry. HSPF is specifically used to measure the efficiency of air...

both modes. Therefore, the Seasonal Energy Efficiency Rating (SEER in the US) or European seasonal energy efficiency ratio of a reversible heat pump is...

Equipment. A similar standard is the European seasonal energy efficiency ratio (ESEER).[citation needed] Efficiency is strongly affected by the humidity...

the ratio of the amount of usable energy (the exergy) delivered from a particular energy resource to the amount of exergy used to obtain that energy resource...

On seasonal timescales, solar energy peaks in summer, whereas in many areas wind energy is lower in summer and higher in winter. Thus the seasonal variation...

version of the EER, the Seasonal Energy Efficiency Ratio (SEER), or in Europe the ESEER, is used. SEER ratings are based on seasonal temperature averages...

which consume renewable energy or energy with more efficiency). Energy conservation can be achieved through efficient energy use, which has some advantages...

(PUE) or power unit efficiency is a ratio that describes how efficiently a computer data center uses energy; specifically, how much energy is used by the computing...

production) may only reduce external energy requirements by 15% to 30%. A 29 kWh (100,000 BTU) high seasonal energy efficiency ratio 14 conventional air conditioner...

Exchange Commission (US) SEER—seasonal energy efficiency ratio SEFI—Sustainable Energy Finance Initiative SEIA—Sustainable Energy Industry Association Seams—Interconnections...

announced in 2016 that it would be switching to ISEER (Indian Seasonal Energy Efficiency Ratio) to calculate star ratings for air conditioners. This is an...

many other industrial sources of electricity. Solar-cell efficiency is the portion of energy in the form of sunlight that can be converted via photovoltaics...

240 define Seasonal Energy Efficiency Ratio (SEER) and Heating Seasonal Performance Factors (HSPF) to account for the impact of seasonal variations on...

derived sources of energy, and for the recovery and reuse of energy that would otherwise be wasted. Energy conservation and efficiency measures reduce the...

Research-Cell Efficiency Chart". www.nrel.gov. Retrieved 5 April 2023. "PHOTOVOLTAICS REPORT" (PDF). Fraunhofer Institute for Solar Energy Systems, ISE...

Variable renewable energy (VRE) or intermittent renewable energy sources (IRES) are renewable energy sources that are not dispatchable due to their fluctuating...

(Seasonal Efficiency of Domestic Boilers in the UK) Band A efficiency rating, while in North America they typically receive an Eco Logo and/or Energy Star...

and energy-engineering principles.[citation needed] The ability to achieve these goals simultaneously is fundamentally dependent on the seasonal variations...

FPV have some of the shortest energy payback times (1.3 years) and the lowest greenhouse gas emissions to energy ratio (11 kg CO2 eq/MWh) in crystalline...

higher levels of energy efficiency in retrofitting. The use of technologies like heat pumps can also increase building energy efficiency. Agriculture and...

rate and feed conversion efficiency of intensively cultivated European eel (Anguilla anguilla L.)". "Feed conversion efficiency in aquaculture: do we measure...

Molten salt storage Phase-change material Seasonal thermal energy storage Solar pond Steam accumulator Thermal energy storage (general) Chemical Biofuels Hydrated...

Retrieved 23 February 2022. "Energy Efficiency 2019 – Analysis". IEA. Retrieved 23 February 2022. "Electricity – World Energy Outlook 2019 – Analysis". IEA...

may be required to achieve desired energy efficiency levels in Arctic regions, or to allow for higher glazing ratios in curtain walling without increasing...

recirculation allowed a compression ratio of 19.5 with fuels ranging from neat ethanol to E50. Thermal efficiency up to approximately that for a diesel...

volatile fuels. Further improvements in engine efficiency were attempted at higher compression ratios, but early attempts were blocked by the premature...

to seasonal thermal energy storage (STES). Thermal storage increase the solar fraction - the ratio between solar energy gain to the total energy demand...