Said to be the largest power plants in Latin America, the projects will feature 110MW CSP and 17.5 hours of thermal storage.
The company will supply over 780,000 multi-crystalline utility-scale YGE 72 Cell solar panels to the projects in two phases.
Yingli has recently completed the first phase of panel deliveries with the second phase scheduled to start next month.
Yingli Green Energy Spain managing director Fernando Calisalvo said: "We believe that supplying projects of this magnitude and significance will cement our leadership position in Latin America, one of the world’s highest potential emerging markets."
The first power plant is scheduled to be commissioned by mid-2016.
The two projects are expected to reduce approximately 385,000 tons of CO2 emissions a year.
Yingli Green Energy chairman and CEO Liansheng Miao said: "Our demonstrated ability and proven experience supplying large-scale hybrid solar power plants, including the projects announced today as well as PV-diesel systems, will be a compelling differentiator for Yingli."
