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Projected effects of climate change. "Seventy years from now, temperatures are likely to rise above 95°F approximately 20 to 40 days per year in the southeastern half of Virginia, compared with about 10 days per year today. Warmer temperatures will increase the use of air-conditioning, which will increase electricity consumption".
Virginia City was the biggest high-grade silver and gold ore producer of the United States in the mid-1800s. Natural springs supplied water to the camps at the beginning of the mining activities. For addressing the need for more water because of the population growth, the Virginia and Gold Hill Water Company was established. Water was primarily ...
The Virginia Graeme Baker Pool and Spa Safety Act ( VGBA) is a United States law named after Virginia Graeme Baker, who died after sustaining a pool suction-drain injury in June 2002, when the suction from a spa drain entrapped her under the water. It is incorporated as Title 14 of the U.S. Energy Independence and Security Act of 2007 ( EISA ...
Lake Anna is one of the largest freshwater inland reservoirs in Virginia, covering an area of 13,000 acres (53 km 2 ), and located 72 miles (116 km) south of Washington, D.C., in Louisa and Spotsylvania counties (and partially in Orange County at the northern tip). The lake is easily accessible from Fredericksburg, Richmond, Charlottesville ...
The climate of Virginia, a state on the east coast of the United States, is mild compared to more northern areas of the United States such as New England and the Midwest. Most of Virginia east of the Blue Ridge mountains, the southern part of the Shenandoah Valley, and the Roanoke Valley, has a humid subtropical climate ( Köppen climate ...
There are 117 local district heating systems supplying towns as well as rural areas with hot water – reaching almost all of the population. The average price is around US$0.027 per kWh of hot water. [93] The Reykjavík Capital Area district heating system serves around 230,000 residents had an maximum thermal power output of 830 MW.
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Hot water reset, also called outdoor reset ( ODR ), is an energy-saving automatic control algorithm for heating boilers that are typically fired with fuel oil or natural gas. A hot water reset control loop measures the outside air temperature; this information is used to estimate demand or heating load as the outdoor temperature varies.