Security of supply26 May 2018 21:22
https://www.thechemicalengineer.com/features/brexit-the-impact-on-energy-and-climate-change .......
Some key points ......................................................
Gas generation has grown massively. The reduced output from coal has required increased capacity from gas. This in itself is positive for the environment as gas burns cleaner than coal (driving higher air quality), but also more efficiently, reducing our carbon emissions.
Electricity generation from gas has also been on the increase due to the rise of renewables. As renewables produce power intermittently, gas power plants provide back-up to balance the grid, as they can be powered up or down swiftly, hence generating peak power. In short, they can be switched on quickly when the country needs more power as national grid tracks increased power demands, or as generation falls off from intermittent renewables.
The UK’s increased reliance on gas and renewables has led to the various interconnectors and energy trading with the EU coming under increased scrutiny.
Gas trading
Gas consumption for the UK in 2016 was 896,526 GWh. It is crucial for the country's heating, industrial processes and electricity production. In 2016, electricity production consumed 297,643 GWh of gas, equivalent to 33% of our total gas consumption, which as explained above, is only set to grow.
The clearest marker of this dependency is our gas pipelines to the continent. Most of the gas comes from Norway, which is connected through two pipelines: Langeled (capacity 80m m3/d) and Vesterled (capacity 38m m3 /d).
Not only do we rely heavily on the quantity of gas supplied, but we must also guarantee its constant supply. With the long-term gas storage facility at Rough closing, the UK is less capable of buffering for sudden consumption increases. This was testified during the cold spell of winter 2017/18, where National Grid Gas requested industrial gas users to implement demand-side response, making more gas available for domestic use. With fewer buffering system in place, the country is more reliant on the steady flow of gas imports.
The UK’s reliance on the continent for gas is fundamental to the UK’s energy security. Norway, as a member of the EEA, trades with the UK under the rules of the EU. Extra tariffs on these pipelines could therefore hinder the UK’s strategy which relies on gas peak generators to balance intermittent renewables.
Brexit could mean that the UK leaves the Supergrid project, within which the UK would be able to coordinate electricity generation and trade centrally across the European continent, leveraging the strengths of different renewable powers across various regions.
Whichever way the negotiations are resolved, the overall energy picture for the UK isn't set to change in the immediate future. However, acting as an independent agent and with the likely restricted access to EU investment and skills, the long-term energy picture beyo