The chair wants to see change move with speed.
This means lower power prices but households won't necessarily feel the difference.
Steps like greater information sharing will reduce the risk of blackouts, but could not be completely ruled out.
In June, Trust Tairāwhiti announced plans to sell the region's lines company.
The report by unions and a climate action group says they are purposely delaying infrastructure so they can keep hiking the cost of power.
The power company pointed the finger at the big four generators - Mercury, Meridian, Contact and Genesis.
This is the second time in four years the Commerce Commission has commenced proceedings against Vector.
Demand is higher than expected and there's less wind generation available than offered.
A Transpower spokesperson told Newshub there was a low level of residual generation expected for the evening peak.