In several sectors, efficiencies can be gained through co-generation (combined heat and power) and even through the integration of renewables such as co-firing of biomass with fossil fuels and industrial-scale solar thermal applications. Energy efficiency applications in industry (often using available technologies available in the global marketplace) can be inexpensive to deploy and offer attractive paybacks. Electricity demand currently represents 17% of worldwide final energy consumption. Its share is expected to increase significantly due to growth in general demand and increased use of electricity in heating and transport.