Time for variable pricing for feeding into the grid

For some time there have been proposals to charge customers variable prices based on when energy is consumed. Such schemes, which come in many forms and flavours including time-of-use pricing (TOU), real-time pricing (RTP), dynamic pricing and critical peak pricing (CPP) were originally intended to manage peak demand by encouraging consumers to shift some of […]

Coal-mill optimisation in coal-fired power stations aids flexibility

Many of the existing pulverised coal-fired (PCF) power stations are operated at a fixed steady load (i.e. baseload operation). There is however a growing requirement for load following or flexible operation, which requires flexibility in most of the components of the power station. Flexibility and efficiency can be improved by close control of the coal […]

How modern gas turbines achieve excellent environmental performance at high load

This article explains how the gas turbines used at the Dedisa and Avon peaking power plants – which were highlighted in the June 2016 edition of Energize (“Privately owned peaking power station nears completion”) – achieve their environmental performance with lower NOx emissions even when operating at peak load. Dedisa and Avon peaking power stations […]