National Grid (NG) has finally released figures of ‘distributed’ renewable energy – that is solar and wind power connected at the distributed as opposed to transmission level of the electricity system. These figures reveal that such distributed renewables will contribute around 7 per cent of UK electricity supply on an annual basis. This includes around 5.7 GW of wind power and 13 GW of solar power, each of which types contribute roughly the same amount of energy on an annual basis. For years people like me have been complaining that the National Grid’s transmission figures – routinely repeated by people who think they know what is going on – have greatly underestimated renewable energy generation capacities. But now the NG has come clean – apparently, though, only in the process of using the information to argue that they have the answer – batteries.
Dave Toke’s Blog 11th April 2018 read more »
Surging solar generation this summer could send legacy, inflexible generators off the grid as National Grid expects yet another period of supply and demand travails. Yesterday the transmission system operator (TSO) released its Summer Outlook, an annual document which includes its forecasts of supply and demand and, crucially, how it expects to balance the grid. The UK’s ~13GW of operational solar is again expected to set new records for its percentage share of generation throughout the summer months, which will in turn have a more significant impact on transmission system demand with the bulk of solar generators sitting on distribution networks. National Grid has also warned that inflexible generators – including nuclear, CHP and some wind and hydro facilities – could be instructed to turn off to make way for solar PV surges.
Solar Power Portal 11th April 2018 read more »