Hybrid renewable energy and energy storage projects are the "holistic" answer to many challenges, including increasing the contribution of renewable energy to the energy mix, whether it is solar or wind energy.

　　Tomomichi Kageyama of Sonnedix Japan said: "There will be more and more discussions, can you store energy when you are not using it, or release it when you need it? Japan needs to do a lot to accelerate this transition. But for us in other words, we are convinced that energy storage batteries will become the choice we must provide."

　　Battery energy storage may become the driving force for Japan's next stage of large-scale development of solar power generation. The only region in the country that requires any form of energy storage for renewable energy is the North Island of Hokkaido. The island’s power grid is congested and interconnections with other parts of the country are limited.

　　"We must consider investment, but the cost of energy storage batteries is not cheap enough, and we also need to ensure a good return on investment. Sony Japan also hopes to install energy storage equipment in Japan." Kageyama said.

　　Australia already has a battery energy storage business case, and the urgent need for grid auxiliary services is also increasing. Vena Energy is building a 150MW battery project in South Australia.

　　Lithium-ion battery (LIB) has become the main energy storage solution in modern social life. Among them, lithium iron phosphate batteries are a perfect replacement for lead-acid batteries, and they are the first choice for grid-connected peak shaving, off-grid energy storage, photovoltaic energy storage, UPS, data center and other industries.

　　Solar power generation system with lithium battery energy storage system is a very promising clean energy.