"Confidence has returned to the agricultural sector and that bodes well for the regions that rely on dairy" as well as providing "a decent chunk of income" coming back into the wider economy, he said.
Farmers will probably be "quite cautious" about the extra income, initially prioritising debt repayment, and then investing in maintenance, fertiliser, and stock, with land prices likely to pick up heading into the new year, he said.
"Given the size of the downturn it will be a gradual thing as opposed to a quick rebound," Penny said.
A pick up in the dairy sector will add to New Zealand's already "pretty healthy economy" which is being underpinned by housing, construction and tourism, he said.
"We see healthy growth for the next couple of years," Penny said. "We're not dancing on tables, but I think we are in a position where we've got something to look forward to and we do compare well -- New Zealand is standing out as one of the better economies floating around at the moment."