The $180 million farm with 310,000 solar panels can generate 120 megawatts or enough electricity to power 36,000 homes.

Spark Infrastructure head of renewables Anthony Marriner, whose company owns the solar farm, said construction was complete expect for some tests by the national electricity market operator.

"The farm is allowed to export 100 per cent of its electricity at this point," he said.

"We're supplying it to the grid right now."

Thanks to a sunny morning on Wednesday, the panels were already generating 68 megawatts by 9am.

Mr Marriner said the solar panel frames had the ability to move on a single axis to maximise available light even in winter.

"They are basically at the angle of the sun and they will track it throughout the day," he said.

As part of a deal made last year to supply renewable energy to Westpac, Spark Infrastructure has co-established a $1 million community fund to support projects around Wagga over the next ten years.

"We're finalising the allocation with Westpac but it is likely that a significant portion will go to a fund with Wagga City Council on greening the Eunony Valley," Mr Marriner said.

"We have other initiatives that haven't been announced yet but will have to do with schooling and universities.

"It's a great initiative and a significant amount of money to put into the community but I think you have to because you have to work alongside your neighbours and show a positive benefit for why you are here."

At Wagga City Council's June 29 meeting, councillors gave approval to enter into a funding partnership agreement with Spark Infrastructure for $350,000 to fund a revegetation program.

"As part of the community fund Spark Infrastructure have proposed entering into a funding partnership agreement where they will provide Council $350,000 to undertake a revegetation program to enhance biodiversity in the proximity of the Bomen precinct," a report to councillors stated.

Councillors were told the funding would cover the costs associated with the revegetation including site preparation, plants, planting, materials and watering.

"It is anticipated planting would occur during the winter months of 2021/22 and would include between 40,000 and 50,000 plants," the report stated.

Mr Marriner also said the solar farm hoped to trial grazing sheep between the solar panels as rain over the past few months had seen grass return to the bare earth created by the construction period.