The three plants are already connected to the grid, the company said Tuesday.
Unisun, a member of Wuxi Guolian Development Group, is a global developer of photovoltaic power plants and provider of green electricity, with projects totaling more than 500 MW in installed capacity.
The total capacity of photovoltaic power plants operating in Romania exceeds 700 MW.
Producers of renewable energy in Romania benefit from government support via a green certificates scheme, which allows them to recover part of the production costs.
Last June, the government decided to temporarily reduce the number of certificates granted under the scheme.