The transition plan documents reveal that Centrica spent just 5% of its annual investment in 2021 in low-carbon fields, but does commit to this reaching 50% by 2025. Investment areas include solar installations, heat pumps, and electric vehicle chargers. While Centrica has certified all of its electricity as "zero-carbon" for two years now, much of this has been done using Renewable Energy Generation Origin (REGO) certificates and similar approaches. In the future, additionality will be important at the level of meeting national targets and ensuring a credible corporate strategy.