Centrica Results Presentation Deck

Building the workforce of the future ● ● Need to rebuild direct labour workforce after years of decline - Largest services field force in the UK with ~7,000 engineers - Reduced materially over recent years Terms and conditions changes painful but necessary - Allows us to rebuild our workforce ● Material shortage of heating engineers in the UK - Apprentice recruitment increasingly critical - In-house training academies a competitive advantage • Workforce changes will set us up to capitalise British Gas training academies HAMILTON LEICESTER THATCHAM DARTFORD on decarbonisation - Increased flexibility to enhance the customer experience - Near-term negative productivity impact with higher apprentices - Productivity improvements over time will reduce cost of direct labour 23 Centrica plc Preliminary Results 2021 Recruitment and attrition Engineers 2,000 1,500 1,000 500 0 -500 -1,000 -1,500 -2,000 2018 2019 Recruitment Apprentices Recruitment - Engineers centrica 2020 Attrition 2021

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