But that's true of nuclear as well. Building a power plant and disposing of waste (not to mention disposing of waste water, which is often an environmental challenge) have huge costs that are fed by fossil fuels as well.
What's implied by "produce power with no side effects" is it does not take fossil fuels to keep them running, nor do they put out any harmful by-products. Even hot water discharged into a lake and steam discharged into the air is more of a harmful by-product than the literally nothing that solar and wind generators produce.
What's implied by "produce power with no side effects" is it does not take fossil fuels to keep them running, nor do they put out any harmful by-products. Even hot water discharged into a lake and steam discharged into the air is more of a harmful by-product than the literally nothing that solar and wind generators produce.