In addition to the global development and climate deterioration, the global energy crisis experienced in 2021-2022 has highlighted the critical importance of securing a reliable and stable energy supply. In this context, policy makers as well as energy consumers have turned more attention to renewable energy. As shifting to renewables becomes a global necessity, a pressing question remains: How do we ensure that we have enough of these energy sources to support a prosperous economy, foster social equity and achieve sustainable development? And how can we provide a secure and stable energy supply globally? Renewable power experienced record-breaking growth in 2022, but this progress alone does not capture the full picture of the energy transition. The current growth rate in renewable power is still insufficient, and it overshadows some critical bottlenecks, such as slow permitting processes and insufficient grid infrastructure – as I write, over 1 terawatt of renewable power capacity is waiting to be constructed or connected to the grid. Renewable heat and fuels also lag - heat and fuels provide nearly 80% of the global energy supply but are still largely dependant on fossil fuels. To shield us from future crises, policy makers need to pay greater attention to diversifying the sources and technologies of renewables. In addition, greater focus is needed on building an economy that has renewables as its backbone. This means putting in place structures to enable the sustainable growth of the renewables industry, including ramping up manufacturing capacities, securing necessary supply chains and developing skilled labour. The Renewables 2023 Global Status Report – Energy Supply Module delves into the intricacies of renewable energy progress, examining the distribution of energy among carriers and addressing critical obstacles. The module is the second in a five-piece collection released this year and represents the collaborative efforts of hundreds of contributors who share the ambition of providing irrefutable and unbiased facts and knowledge to propel the global wave of change. I hope that in this module, you will find the essential elements and tools to support your analysis and to work towards a swift transition to renewable energy. Thank you to the REN21 team, authors, special advisors and contributors who have dedicated their knowledge, time and effort to produce this report. Their insights, passion and commitment are instrumental in creating these crowd-sourced and peer-reviewed reports. I am confident that this publication will serve as a valuable resource for policy makers, industry leaders, and stakeholders, informing their decision making and driving the transition to a sustainable energy future for all. Sincerely, Rana Adib Executive Director, REN21