Renewable energy has been the hot potato in 2019. With growing impact of climate change on our daily lives sustainable and renewable energy holds key to our survival. Here are few trends which were abuzz in the year 2019

ENERGY STORAGE:
Many important renewable energy sources are intermittent, and only generate when the weather dictates, such as wind and solar, so the storage of energy provides a way of adjusting to variations in the energy demand.Energy storage is an important component in any sustainable energy system with the types of energy storage media that can take and release energy in the form of electricity have the most universal value, because electricity can efficiently be converted either to mechanical or heat energy. The most common way of energy storage for later use is by using batteries.For solar panels, lithium ion battery powered energy storage is the technology of choice today. The growth of the EV market has  contributed to greatly improving li-ion technologies in recent years. As a result, the prices for Lithium-based batteries are steadily declining by 8% on an annual basis, making solar + storage projects more investment-friendly. As it stands, li-ion batteries comprise 98.8% of the battery / energy storage market share. Nevertheless, promising technologies such as flow battery (developed by NASA) and fuel cell are poised to scale-up and offer alternative storage solutions sometime in the near future.