Already, this year we’ve seen many days when we could be exporting surplus electricity from renewables. See, for example:
Today, reported in Energy Voice we see:
‘National Grid has confirmed electricity has started to flow through a cable taking renewable energy from Scotland to England and Wales. The cable runs from Hunterston, where a converter station is based, to Flintshire Bridge in Wales. The cables will transfer up to 900MW of power across several hundred kilometres to link the transmission network in Scotland with the one in England and Wales. To enable the link to operate at its full capacity of 2200 MW, further work is required at Hunterston.’
2 200Mw or 2.2Gw? Small beer! According to the Scottish Government, Current supply (September 2017) is 9.7Gwh and is projected to reach 21.3Gwh before 2020. This suggests oversupply of at least 15Gwh which can be exported.
Looking further ahead, a fully-sourced Wikipedia account, suggests that Scotland has:
- existing installed capacity of 1.3 Gwh of hydro-electric schemes
- an estimated potential of 36.5 Gwh of wind
- 25% of the estimated total wind power capacity in Europe
- An estimated potential of 7.5 Gwh of tidal power
- 14 GWh of wave power potential, 10% of EU capacity
- Total renewable electricity generating capacity may be 60 Gwh or more
So, with a potential to generate 60 GWh what is our domestic electricity demand? In 2015 it was only 6 Gwh!
We could be exporting huge amounts of energy well beyond England and Wales.