Shale oil extraction Energy estimates that the "ex-situ" processing would be economic at sustained average world oil prices above $54 per barrel and "in-situ" processing would be economic at prices above $35 per barrel. These estimates assume a return rate of 15%. Royal Dutch Shell announced in 2006 that its Shell ICP technology would realize a profit when crude oil prices are higher than $30 per barrel ($190/m), while some technologies at full-scale production assert profitability at oil prices even lower than $20 per barrel ($130/m). To increase the efficiency of oil shale retorting and by this the viability of the shale oil
Gallons per watt-hour makes it easy for homeowners and plumbing professionals to quickly determine the energy efficiency of a pump. Simply stated G/Wh links efficiency and performance by illustrating how many gallons of water are pumped using one watt hour of electricity. To calculate G/Wh, take the gallons per hour (GPH) pumped, divided by the power the pump consumes in watts. GPH/W = G/Wh California Code of Regulations (CCR), Title 24, also known as the California Building Standards Code, is a compilation of three types of building standards from three different origins: Residential swimming pool standards are included in the 2008 Title-24 building