"When you think about it, $100 million is about 3.3 km of motorway. For about 3.3km of new motorway we can get about 1300km of fibre optic cable," said Dr Norman.
He said adding competition into the sector would result in faster and cheaper internet.
"Our reliance on a single provider for our internet means higher prices, data caps, and less innovation. This stifles the full economic potential of the ICT sector."
The Greens say growth of the ICT sector in New Zealand has been stunted by the the approach taken by Government in allocating its contracts.
Dr Norman said more support for the domestic ICT sector is needed.
"We've seen it with the Datacom-Novopay decision to give the contract to Novopay and the disaster that has come out of that, and we've also seen it with the Capgemini - which has the first part of the contract for Inland Revenue."
He said a problem with the contract for overhauling the ICT system at the Inland Revenue Department was that it was a large contact and inaccessible to local bidders.
"What we're saying is disaggregate some of the contracts, so that smaller and medium-sized ICT businesses can compete."
Lance Wiggs, a technology entrepreneur and internet commentator who was involved with Pacific Fibre's second internet cable bid, said he was not a member of the Green Party but supported the Greens' plans for the ICT sector in New Zealand.
Mr Wiggs said everybody thought they were doing the right thing when it came to Novopay.
"It's hard to describe Novopay without getting extraordinarily angry.
"We set them up to fail through the way our procurement works."
He said smaller companies needed to get a chance in bidding for contracts.
New Zealand's ICT sector
* About 2200 businesses in the sector employing 42,800 people and paying average hourly wages 28 per cent higher than the national average.
* The ICT sector is nearly seven times bigger than New Zealand's mining sector and employs five times more people than the mining sector.
* ICT exports have grown 80 per cent to $19.5 billion.
