05.07.2009
Fuels obtained from primary sources for example, electricity generated from burning coal, gas or oil
Energy which has been produced from primary energy in a conversion process, such as electricity, petrol, hydrogen
Resulted from the Iran-Iraq war that reduced supplies from these two countries
Second generation biofuels will process the cellulose found in many plants and should lead to far more efficient production than regular biofuels using a much greater range of plants and plant waste.
Seastar platforms are like miniature tension leg platforms. A lower hull is filled with water when drilling, which increases the stability of the platform against wind and water movement. In addition to this semisubmersible rig, however, Seastar platforms also incorporate the tension leg system employed in larger platforms. Tension legs are long, hollow tendons that extend from the seafloor to the floating platform. These legs are kept under constant tension, and do not allow for any up or down movement of the platform. However, their flexibility does allow for side-to-side motion, which allows the platform to withstand the force of the ocean and wind, without breaking the legs off. Seastar platforms are typically used for smaller deep-water reservoirs, when it is not economical to build a larger platform. They can operate in water depths of up to 3,500 feet.
A variable electricity supply tariff based on higher unit charges during peak periods and lower unit charges during off-peak periods
Steel pipe formed in a process without seems