> because if you have batteries which cause a back flow during a power outage to the power station, an electrical worker could get shocked What is the differen

> because if you have batteries which cause a back flow during a power outage to the power station, an electrical worker could get shocked What is the difference between Battery backup and a wind turbine/solar? Somehow you are allowed to have solar and pump back to the grid, but not battery, geee wonder why that is.