ESCO or Esco may refer to:
An energy service company or energy savings company (ESCO or ESCo) is a commercial or non-profit business providing a broad range of energy solutions including designs and implementation of energy savings projects, retrofitting, energy conservation, energy infrastructure outsourcing, power generation and energy supply, and risk management.
A newer breed of ESCO evolving in the UK now focuses more on innovative financing methods. These include off-balance sheet vehicles which own a range of applicable equipment configured in such a way as to reduce the energy cost of a building. The building occupants, or landlord, then benefit from the energy savings and pay a fee to the ESCO SPV in return. At all times, the saving is guaranteed to exceed the fee. The ESCO starts by performing an analysis of the property, designs an energy efficient solution, installs the required elements, and maintains the system to ensure energy savings during the payback period. The savings in energy costs are often used to pay back the capital investment of the project over a five- to twenty-year period, or reinvested into the building to allow for capital upgrades that may otherwise be unfeasible. If the project does not provide returns on the investment, the ESCO is often responsible to pay the difference.
Escó, or in local Aragonese Esco, is an almost deserted village in the region of Jacetania, province of Zaragoza, Aragon, Spain, located next to the Yesa Reservoir.
Esco, along with Sigüés, Ruesta, and Tiermas were largely abandoned in 1960 with the creation of the Yesa Dam, flooding much of the surrounding farmland.
Coordinates: 42°37′10″N 1°03′20″W / 42.61944°N 1.05556°W / 42.61944; -1.05556