Kyeamba Valley Concerned Landowners Group has said its members will stop co-operating with efforts to build the HumeLink project as they felt their suggestions for low-impact routes had been ignored.

HumeLink involves building a 500-kilovolt line between Wagga and Snowy Hydro 2.0 with 65-metre-high towers.

Coreinbob landowners Rick and Pam Martin said they had not been able to get TransGrid to recognise the sensitive environment and vulnerable native species on their property.

"To say it is extremely disheartening is an understatement. Landowners need to be treated as key stakeholders, not collateral damage," Mrs Martin said.

The landowners have issued a manifesto with five demands its members want met or they will stop cooperating with TransGrid

The demands included a feasibility study on route options and using underground cable, a high priority on avoiding prime agricultural land and native vegetation, and "fair and reasonable" compensation.

The lock out threat came after TransGrid's independent consumer advocate Rod Stowe found that landowners had felt excluded and not respected during HumeLink's community consultation.

A TransGrid spokesperson said it was "resetting our engagement processes to ensure we are working respectfully, effectively and transparently with communities".

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"We have heard clearly from the Kyeamba Valley Concerned Landowners Group about how we can improve, and particularly that they would like more information about how their input and feedback to date is helping inform design," the spokesperson said.

"Members of the project team are planning to meet with the Kyeamba Valley Concerned Landowners Group this month to progress meaningful and collaborative discussions about the project.

"We will also be advertising soon for nominations for Community Consultative Groups...However, we would like feedback at any time from local communities."

Wagga MP Joe McGirr, who has spoken about the landowners' concerns in Parliament, said he commended the group for its manifesto.

"This is a template for people, groups and communities throughout the state that deal with TransGrid," he said.

NSW Energy Minister Matt Kean was contacted for comment but did not provide a response before publication.

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