Yes, solar batteries now make it possible to store excess energy for use when you need it, rather than relying on the grid.

Previously, solar power had to be used immediately, meaning high-powered appliances had to run during daylight hours. With a solar battery, you can store energy for later, reducing waste and increasing self-sufficiency.

This is especially valuable as selling energy back to the grid is now less profitable. Some solar batteries still allow you to sell surplus energy while ensuring you always have power when you need it.