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u s energy information administration eia renewable - energy information administration eia official energy statistics from the u s government, alternative fuels data center glossary - higher heating value the heating value is the amount of heat released during the combustion of a specific substance usually a fuel or food the higher heating value is determined by bringing all the products of combustion back to the original pre combustion temperature condensing any water vapor generated, peak soil industrial agriculture destroys ecosystems and - storage stover needs to be stored with a moisture content of 15 or less but it s typically 35 50 and rain or snow during harvest will raise these levels even higher doe feedstock roadmap, energy fuels acs publications - view the most recent acs editors choice articles from energy fuels see all energy fuels acs editors choice articles view one new peer reviewed research article from any acs journal selected daily and made open access based on recommendations by acs journal scientific editors from around the world, our common future chapter 7 energy choices for - 7 in 1980 global energy consumption stood at around 10tw 2 see box 7 1 if per capita use remained at the same levels as today by 2025 a global population of 6 2 billion 3 would need about 14tw over 4tw in developing and over 9tw in industrial countries an increase of 40 per cent over 1980 but if energy consumption per head became uniform worldwide at current industrial country, biofuels solar and wind as renewable energy systems - biofuels solar and wind as renewable energy systems benefits and risks d pimentel on amazon com free shipping on qualifying offers the petroleum age began about 150 years ago easily available energy has s ported major advances in agriculture, hydrogen energy and fuel cell technology - hydrogen is also found in many organic compounds notably the hydrocarbons that make up many of our fuels such as gasoline natural gas methanol and propane hydrogen can be separated from hydrocarbons through the application of heat a process known as reforming currently most hydrogen is made this way from natural gas, process engineering fuels southwest research institute - using practical and dynamic approaches to advance fuels technology we work with clients on every step of process development from lab scale to commercial design with diverse backgrounds in biofuels gas to fuels petroleum processing and electrochemical processes our engineers and scientists strive to improve the use of fossil fuels through supporting petroleum and chemical process, our renewable future post carbon institute - or what i ve learned in 12 years writing about energy 7000 words about 25 minutes reading time folks who pay attention to energy and climate issues are regularly treated to two competing depictions of society s energy options, global alliance for clean cookstoves - the global alliance for clean cookstoves is a public private initiative to save lives improve livelihoods empower women and protect the environment by creating a thriving global market for clean and efficient household cooking solutions, eroei for beginners energy matters - the energy return on energy invested eroei or eroi of any energy gathering system is a measure of that system s efficiency the concept was originally derived in ecology and has been transferred to analyse human industrial society