France has said it will provide 700 million euros in financing to the international solar union (ISA).
The alliance is working with governments and businesses around the world to develop and install solar power generation and storage technology, aiming to mobilize $1 trillion to finance solar financing.
Currently, the alliance has 60 signatories, of which 30 have ratified the financing agreement.
French President mark long said France would more than triple its commitment to support up to 1 billion euros in funding.
Mr Macron added that the money would help lower funding costs and boost investment across the entire solar supply chain, including product manufacturing, project development and solar storage.