The economic "problem" is that ultimately fusion is a heat source that turns water into steam which turns a steam turbine. Solar and wind are approaching the co

The economic "problem" is that ultimately fusion is a heat source that turns water into steam which turns a steam turbine. Solar and wind are approaching the cost of just the steam turbine alone. There is hardly any room for fuel and operational costs. Even today steam turbine plants produce higher cost electricity that natural gas combined cycle plants.