No, solar panels do not require battery storage for optimal performance. Battery storage allows homeowners to store excess energy generated during the day for use at night or during cloudy weather. In fact, the majority of residential solar installations in the U. are “grid-tied” systems without batteries. This introductory section. This review paper sets out the range of energy storage options for photovoltaics including both electrical and thermal energy storage systems. Here are all the reasons why you should get a battery with your solar panels, as well as the kind of costs, savings, and income you can expect with and without a battery. It's. Using the sun's power has never been simpler or cheaper. A solar system without battery, or grid-tied solar energy system, is a smart and green energy choice; it works well with the power grid, letting you make clean energy and cut down on traditional power use.