> In practice, the non-renewable energy turbines like gas are the easiest to control so these are used to balance the grid. You can use energy from the renewab

> In practice, the non-renewable energy turbines like gas are the easiest to control so these are used to balance the grid. You can use energy from the renewable sources to charge up storage systems, which in turn can be controlled more easily. That way you achieve flexibility without relying on non-renewable energy sources.