NSW Greens MLC John Kaye will visit Tenterfield tonight to address a public meeting on TransGrid's preferred corridor for its 330 kilovolt powerline.

The powerline will connect the Lismore substation with the Dumaresq substation, west of Tenterfield.

Local resident Colin Chevalley said more than 200 people were expected to attend the meeting.

“We are pleased that Mr Kaye is coming along,” he said.

“It's about time that someone listened to us. We don't want this powerline.”

TransGrid has promised that the powerline will make the transfer of power more efficient.

But Mr Chevalley and many other locals are worried about health risks, effects on livestock and tourism.

“Real estate values are already declining because of this,” he said.

“People don't want to be within kilometres of this transmission line.

“This is probably the most concerning issue we've had in this area for years and years.

“People will see this transmission line for miles. And the compensation won't negate any of our ongoing health concerns.

“It's just not good at all.

“We've had no support from government - John Kaye may be our only saviour.”

The meeting will be held in the shearing shed at the Tenterfield Showground tonight from 6.30pm.