UK households warned about utilizing electrical energy between 6pm and 8pm on Wednesday

Octopus Energy is urging its UK customers to avoid using dishwashers and washing machines between 6pm and 8pm on Wednesday as the solar eclipse is set to knock out solar power from the grid

UK households have been warned against using electricity between 6pm and 8pm on Wednesday during this week’s solar eclipse. Britain’s largest energy supplier Octopus Energy is urging customers to postpone operating appliances including washing machines and dishwashers during these hours when the moon is anticipated to obscure up to 95% of sunlight.

The appeal comes as the obstruction will cause solar generation to nosedive at the moment it typically surges after work hours. According to the National Energy System Operator, which manages Britain’s electricity grid, the eclipse could eliminate as much as 1.3 gigawatts (GW) of supply.

This amounts to sufficient energy to roughly power half a million homes.

According to the National Energy System Operator, which manages Britain’s electricity grid, the eclipse could eliminate as much as 1.3 gigawatts (GW) of supply. This amounts to sufficient energy to roughly power half a million homes.

To help compensate for some of the deficit, gas-fired power stations will be activated. While it’s not anticipated that the eclipse will trigger power cuts, Octopus has encouraged people to consume less energy during these hours to help minimise the requirement for gas power.

If customers reduce their energy consumption during this timeframe, Octopus is providing free electricity at a later date. It forms part of the energy company’s drive to encourage households to alter when they consume electricity, with their ‘agile’ tariff adjusting electricity prices every half an hour in accordance with wholesale costs.

Kieron Stopforth, the company’s head of flexibility, said that half a million of Octopus’s eight million customers already participate in its so-called “demand-shifting” scheme. He stated: “We need to create the right price signals in the market that incentivise more flexible energy use.”

These schemes have faced criticism as they are perceived to penalise households that can’t easily adjust their consumption, such as those dependent on electronic medical devices, according to The Telegraph. Claire Coutinho, the shadow energy secretary, commented last year: “Our energy system should suit what people want to do, not the other way around.”

Mr Stopforth maintained that participation remains optional. He added: “We’re not in a position where we’re going to be forcing customers to do something that they don’t want to do.” The rare partial solar eclipse this week will result in most of the sun being obscured by the moon and is predicted to be the largest visible from Britain since 1999.

Over 90% of the sun will be blocked by the moon between 6.17pm and 8.06pm on August 12. The Met Office disclosed that the prime locations in the UK to witness the cosmic event were Devon, Cornwall and the west of Pembrokeshire.

These areas’ energy systems will be most affected, with solar farms in these locations expected to experience the greatest reductions in output. Neso has stated that despite the historic scenes, the impact on the electricity system will be manageable.

The grid has been preparing for the event for approximately a year with generators informed to have sufficient capacity to handle the anticipated shortfalls.