Sentences with phrase «open cycle gas turbines»

Factors taken into account are: low thermal efficiency at low power; cycling of back up generators; energy needed to build and to install wind turbines; energy needed for cabling and net adaptation; increase of fuel consumption through partial replacement of efficient generators by low - efficiency, fast reacting Open Cycle Gas Turbines.

But if the requirement for gas generators is to back up for intermittent renewable energy technologies, the highly flexible, but inefficient, Open Cycle Gas Turbines (OCGT) are required.

Not exact matches

This can be met with open - cycle gas turbines, which can be rolled out with lead times of 18 - 30 months, at costs of ~ 60 cents / watt.

• Solar generating capacity continues to be rolled out, as costs decline expanding to supply the seasonal maximum of daily average, with pumped hydro to provide daily balancing until superior technologies come on - line, and open - cycle gas turbines shifting to a purely back - up function, with consequent substantial reductions in overall fossil CO2 emissions.

The open cycle consists of the following steps: (i) flash evaporation of a fraction of the warm seawater by reduction of pressure below the saturation value corresponding to its temperature (ii) expansion of the vapor through a turbine to generate power; (iii) heat transfer to the cold seawater thermal sink resulting in condensation of the working fluid; and (iv) compression of the non-condensable gases (air released from the seawater streams at the low operating pressure) to pressures required to discharge them from the system.

The cost of backfilling hundreds of «missing» wind megawatts, by importing coal - fired power from Victoria, running gas - fired OCGTs, reciprocating diesel engined generators and Jay Weatherill's 276 MW diesel - fuelled Open Cycle Turbines (that chew up 80,000 litres of diesel every hour) is staggering: Wind «Powered» South Australia Pays $ 14,000 per MWh for Power that Coal - Fired Plants Can Deliver for $ 50

Recent highlights include advising Drax Power on acquiring four open - cycle gas turbine development projects and assisting Wainstones Energy with the construction of two new gas - fired power plants in Staythorpe and Pembroke.