Constructed by First Solar, the plant features more than 3.4 million First Solar thin-film photovoltaic (PV) solar panels mounted on single-axis trackers.
Under a 20-year power purchase agreement between SCE and NextEra Energy Resources, the plant will supply electricity to Southern California Edison consumers starting this year.
NextEra Energy will own and operate the solar energy center.
The solar energy center has a capacity to generate enough clean energy to power approximately 80,000 homes.
First Solar Chief Operating Officer Tymen deJong said: "First Solar's PV technology is setting the standard for generating affordable, clean energy.
"By continuously driving down the cost of solar electricity and providing a solution that addresses energy security and water scarcity, we are delivering on our commitment to build a more sustainable energy future."
The project, which stretches across 2,000 acres of federal lands managed by the US Bureau of Land Management (BLM), is expected to avoid approximately 150,000 metric tons per year of carbon dioxide emissions.
It has given a significant boost economic boost to Clark County by creating more than 2,100 jobs during the construction phase.
NextEra Energy president and CEO Armando Pimentel said: “"From the jobs and tax revenue it is creating, to the clean energy it will generate over the next 30 years, this is a project that all can take great pride in."
The Silver State South Solar Energy Center is expected to generate more than $78m in property taxes during its operational life.
Clark County Commissioner Marilyn Kirkpatrick said: “This project has provided good jobs for Clark County residents, and positive economic activity for local businesses.”
