The system is expected to produce 1,900 megawatts of solar energy annually.
Texas now produces 2,800 megawatts of energy a year from wind, enough to serve 500,000 homes.
The ten largest dams will produce 55,710 megawatts of power.
It was producing 280 megawatts of its 1,205-megawatt capacity today.
The new dam, which will produce 1,250 megawatts of electricity, is expected to cost $1.8 billion.
By contrast, a large nuclear reactor can produce 1,100 megawatts of power.
Together, they produce 1,753 megawatts of electricity, enough to light nearly two million homes.
However, it only produced 140 megawatts after the power plant began operation.
It produces 5 megawatts of electricity, enough for 4,500 families.
The plant produces 24 megawatts of power with all three units on.