The government has signed off on the Mallard Pass project as it aims to provide more clean energy.
More than 3,000 people signed a petition opposing the plans for the Rutland and Lincolnshire border.
A planning decision on the proposed Mallard Pass development will not be made until after 4 July.
The man and his motorbike were found in the river in Essendine, Rutland, police say.
Mallard Pass Solar Farm would cover more than 2,000 acres and generate power for 92,000 homes.
