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  2. Aggreko - Wikipedia

    en.wikipedia.org/wiki/Aggreko

    Aggreko is a global supplier of mobile and modular power, temperature control equipment and energy services, headquartered in Glasgow, Scotland. [3] [4] The business was founded in 1962 and previously listed on the London Stock Exchange from 1997 to 2021. [5] [6] Aggreko was acquired by TDR Capital and I Squared Capital in August 2021. [4] [7]

  3. Aquifer thermal energy storage - Wikipedia

    en.wikipedia.org/wiki/Aquifer_thermal_energy_storage

    The volume of groundwater that is stored and recovered in a year generally varies between 10 000 m 3 and 150 000 m 3 per well. [10] ATES system depths is commonly between 20 and 200 meters. Temperature at these depths is generally close to the annual mean surface temperature. In moderate climates this is around 10 °C.

  4. Groundwater - Wikipedia

    en.wikipedia.org/wiki/Groundwater

    This is an accepted version of this page This is the latest accepted revision, reviewed on 19 February 2025. Water located beneath the ground surface An illustration showing groundwater in aquifers (in blue) (1, 5 and 6) below the water table (4), and three different wells (7, 8 and 9) dug to reach it. Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in ...

  5. Waterloo Hydrogeologic - Wikipedia

    en.wikipedia.org/wiki/Waterloo_Hydrogeologic

    Waterloo Hydrogeologic is a company that specializes with groundwater modelling software, training, and consulting services. The company was started by Nilson Guiguer and Thomas Franz, who were developing software for their research at the University of Waterloo in 1988. The company was later founded in 1989 as Waterloo Hydrogeologic Software ...

  6. Ground source heat pump - Wikipedia

    en.wikipedia.org/wiki/Ground_source_heat_pump

    This temperature equates roughly to the average annual air temperature of the chosen location, usually 7–12 °C (45–54 °F) at a depth of 6 metres (20 ft) in the northern US. Because this temperature remains more constant than the air temperature throughout the seasons, ground source heat pumps perform with far greater efficiency during ...

  7. Inside the battle to restore drinking water in Altadena and ...

    www.aol.com/news/inside-battle-restore-drinking...

    1:42 p.m. Feb. 14, 2025: An earlier version of this article reported that Las Flores Water Co. posted a message Tuesday informing its customers that they could resume drinking their tap water. The ...

  8. Dewatering - Wikipedia

    en.wikipedia.org/wiki/Dewatering

    Pumps being used to dewater a spillway at Baldhill Dam. Dewatering / d iː ˈ w ɔː t ər ɪ ŋ / is the removal of water from a location. This may be done by wet classification, centrifugation, filtration, or similar solid-liquid separation processes, such as removal of residual liquid from a filter cake by a filter press as part of various industrial processes.

  9. Ground-coupled heat exchanger - Wikipedia

    en.wikipedia.org/wiki/Ground-coupled_heat_exchanger

    The closed loop system can be more effective cooling the air (during air temperature extremes) than an open system, since it cools and recools the same air. Open system: Outside air is drawn from a filtered air intake ( Minimum Efficiency Reporting Value MERV 8+ air filter is recommended) to cool or preheat the air.