13GW for a duration of 18.85 hours or 24GW for a duration of 10.21 hours could be offered using the 245GWh energy storage capacity from the 3 Scottish planned pumped storage hydro schemes named here last week.
To offer 24GW for 18.85 hours we’d need another 11GW and 207GWh of energy storage, easily sourced by selecting from the many 150GWh and 50GWh candidate PSH scheme sites in Scotland suggested by the Global Pumped Hydro Atlas.
Neither is the duration of power regeneration from energy storage limited to only 18.85 hours – double that time is practical with double the total energy storage capacity of pumped storage hydro schemes.
24GW for 36 hours would require 864GWh – big enough to warrant consideration of utilising Scotland’s biggest and best site – the mighty Strathdearn Pumped Storage Hydro Scheme!
Estimates that the UK needs 13GW maybe even 24GW of long duration energy storage were mentioned in a newspaper yesterday by Malcolm Turnbull, former Prime Minister of Australia and International Pumped Storage Hydropower emissary. 😀
The Independent: Fossil fuels aren’t the answer to the global energy crisis – but this might be
Across the UK, about 2.4 GW in new storage capacity has been given planning consent and around another 3.3 GW is awaiting consent. Even if this all gets built, the country’s storage capacity will still fall significantly short of the 13 GW of new storage required by 2030, according to the National Grid.
The energy industry believes even more long duration storage is needed to balance fast-growing variable renewable sources. A report published today in collaboration with SSE Renewables and other groups for example says the UK needs as much as 24 GW of long duration energy storage – eight times the current capacity.
Nae bother Malcolm. 😎
Scottish Scientist 