The fastest energy change in history

 The global energy transition towards renewable sources is considered one of the fastest energy changes in history. While I don't have the specific data for the most recent years, I can provide information based on trends up until September 2021.

Over the past few decades, the deployment of renewable energy technologies has experienced significant growth and accelerated at a remarkable pace. Several factors have contributed to this rapid transition:

1. Declining Costs: The cost of renewable energy technologies, such as solar panels and wind turbines, has been steadily decreasing. This cost reduction, coupled with advancements in technology and economies of scale, has made renewable energy increasingly affordable and competitive with fossil fuels.

2. Supportive Policies: Governments worldwide have implemented various policies and incentives to promote renewable energy deployment. These include feed-in tariffs, tax incentives, renewable portfolio standards, and auctions, which have helped create favorable conditions for renewable energy expansion.

3. Technological Advancements: Continuous research and development efforts have resulted in improved efficiency and performance of renewable energy technologies. This has further enhanced their viability and attractiveness as alternatives to fossil fuels.

4. Public Awareness and Climate Concerns: Growing awareness about climate change and its environmental impacts has increased public support for renewable energy. Individuals, communities, and businesses are recognizing the importance of transitioning to cleaner energy sources to mitigate climate change and reduce carbon emissions.

5. International Agreements: Global agreements like the Paris Agreement, signed by numerous countries, have committed to reducing greenhouse gas emissions and promoting the use of renewable energy. These agreements have created a global momentum towards renewable energy adoption.

While the pace of the energy transition varies across countries, many nations have witnessed significant shifts in their energy mix. For example, countries like Germany and Denmark have achieved high levels of renewable energy penetration, with wind and solar accounting for substantial portions of their electricity generation.

However, it's important to note that despite the rapid growth of renewable energy, fossil fuels still play a dominant role in the global energy mix. The energy transition is an ongoing process that requires sustained efforts and investments to further accelerate the deployment of renewable energy technologies.

For the most up-to-date and specific information on the fastest energy change in recent years, I recommend referring to current reports, studies, and reputable news sources that cover developments in renewable energy and the global energy transition.