Advertisement In recognition of their shared objectives to increase the uptake of renewable energy, the International Renewable Energy Agency (IRENA) and the International Hydropower Association (IHA) have signed a formal partnership agreement. Hydropower is the world’s largest source of renewable energy, contributing over half of global renewable energy installed capacity, and directly employing around two million people, IRENA states. The agreement sets out IRENA’s and IHA’s joint ambition to accelerate the development, financing and deployment of sustainable hydropower. This will involve future policy and market initiatives aimed at better rewarding hydropower for the clean storage and flexibility services it provides to the energy system. Co-operation will facilitate public-private dialogue, strengthen international cooperation and promote sustainable hydropower through the development and dissemination of knowledge.