1. The necessity for technological innovation: In order to achieve the widespread use of clean energy, it is imperative that technological breakthroughs are made in areas such as solar energy, wind energy and hydrogen energy. Such innovations will not only enhance the efficiency of energy conversion, but also reduce production costs.

2. In order to facilitate the transition to a low-carbon economy, it is essential to implement effective policy and regulatory frameworks. It is imperative that governments establish transparent and coherent policy frameworks that provide incentives for investment in renewable energy. This encompasses the implementation of fiscal measures, including tax incentives, subsidies, and carbon pricing, with the objective of fostering the robust growth of the clean energy market.

3. The crux of the matter in regard to energy storage is: The intermittent nature of renewable energy sources necessitates the development of efficient energy storage technologies, such as batteries and pumped hydro storage, to ensure system stability.

4. The necessity for social acceptance and education is also evident. The extent to which the public understands and accepts clean energy has an impact on the effectiveness of policy implementation. It is crucial to disseminate knowledge about clean energy and enhance the sense of participation in society in order to facilitate a successful transition.

5. The significance of international collaboration: The global energy crisis is a cross-border issue, and international cooperation is of paramount importance with regard to technology exchange, financial support and experience sharing. It is incumbent upon developed countries to assist developing countries in their pursuit of a sustainable development trajectory.