Former disability commissioner Graeme Innes has blasted the Abbott government's plans to appoint a national wind farm commissioner when there is no full-time disability commissioner as "very hurtful" and "very damaging".

"It sends a very clear message about where people with disabilities fall in the pecking order," he told Fairfax Media on Friday.

"Clearly, we fall below strong lobbyists."

A leaked draft letter from Environment Minister Greg Hunt to Senate crossbenchers shows that the Abbott government has agreed to appoint a "wind farm commissioner" to handle complaints about turbines. The letter, sent during negotiations over the government's renewable energy target bill, details promises the government has made to help win support for including wood waste as a source of renewable energy.