Energy
Rejuvenating ageing hydro generation will cost millions
Mercury will spend about $350 million on hydro rejuvenation over the next 15 years.
Infrastructure
Critics say Onslow is essentially dead
Onslow is still a possible $16 billion solution to NZ's energy needs, says Megan Woods.
Infrastructure
Onslow now estimated to cost over $15 billion
A pumped hydro scheme at Lake Onslow was originally estimated at $4 billion.
Infrastructure
James departs NZ with some parting shots
The closure of the Marsden Point oil refinery has wider lessons for the energy sector.