The plot of land was donated to a wildlife trust by Michael Adler a year after he lost his son.
Harborough District Council says the proposed develepment is not in the right place.
Planners say the scheme should be approved but more than 300 objections have been submitted.
Leicestershire Police says a man in his 40s died at the scene on the A6 in Market Harborough.
Harborough District Council says it has bought a site near Market Harborough for £1.9m.
Michael Adler lost his 42-year-old son James to a rare illness in May 2023.
Residents oppose plans for the complex but a planning report says the process is odourless.
Applicants Great Bowden Green Energy Ltd said the site had been used for a number of illegal raves.
The RSPCA calls firefighters to the scene of a sheep stranded in water and brambles.