At the start of 2021 there were about 70 domestic gas supply companies in the UK. As of 22 November 2021, a total of 20 gas supply companies had ceased trading as a direct result of the ongoing crisis, affecting around three and a half million customers. These included Avro Energy and
Bulb Energy; the latter was the largest supplier to cease trading to date, affecting around 1.7million customers, while the demise of Avro Energy affected a further 580,000. Bulb was the UK's seventh-biggest energy company and had roughly 1,000 staff. According to some industry analysts, at least 35 further supply companies were thought to be at risk of collapse. In October 2021, struggling commercial gas consumers requested government intervention. The high gas price significantly impacted electricity prices, and some operators of electric trains temporarily switched to diesel locomotives. As a consequence of high gas prices,
CF Industries ceased production at their fertiliser factories in
Teesside and
Cheshire. Pure
carbon dioxide is a by-product of the
Haber process used to make nitrogenous
fertilisers, and CF Fertilisers were also one of the largest commercial carbon dioxide producers in the country; as a result, the shutdown led to a shortage of carbon dioxide in other industries, causing food prices to rise. On 21 September, the UK government signed a short-term deal with CF Fertilisers to recommence production. In June 2022, CF Industries permanently shut their fertiliser factory at
Ince, Cheshire, due to continuing high gas prices and environmental taxes. As of 1 December 2021, 28 energy supply companies had failed. Bulb Energy entered energy supply company administration, effectively being supported by the government, and 27 were taken over by new suppliers under the Ofgem transfer regime. In January 2022, Together Energy became the 27th company to go bankrupt. An analyst expected the failings to cost consumers £34, as the losses were to be covered by consumers through the
Distribution Use of System. == Government response ==