2021 Owens Corning Sustainability Report | Overview | Summary & Highlights | 21 Energy Efficiency & Sourcing Renewable Energy By 2030, we will be sourcing 100% renewable electricity. Purchasing electricity only from renewable sources is a key part of our effort to halve our greenhouse gas emissions. We’ll also work to reduce the emissions from our processes and improve energy efficiency. We will also reduce energy use by 20% over our baseline year. Over our goal cycle, we will work to reduce energy use from both renewable and non-renewable electricity, as well as other forms of non-renewable energy by 20% from our baseline year of 2018. These two approaches — along with fuel switching and low-carbon or no-carbon fuels and technologies — will put us on the path to eventually eliminating our use of fossil fuels. REDUCING OUR ENVIRONMENTAL FOOTPRINT Throughout our operations, Owens Corning is working to conserve energy, reduce emissions, cut waste, and use water responsibly. Through these efforts — which will require a great deal of dedication and collaboration among our employees — Owens Corning is actively working to mitigate our negative impact around the world. Photo submitted by: Caio Tralba | São Paulo, Brazil Toque Grande beach, São Paulo. 2030 Renewable Electricity GOAL: 100% R ENEWABLE 51% 2021 201 8 BASE YEAR 48% 50% 2019 52% 2020 2030 Energy Efficiency (MWh) GOAL: 20% REDUCTION 2% 10,499,961 2021 201 8 BASE YEAR 10,719,236 4% 10,274,193 2019 10% 9,658,731 2020