Solar power systems can save households money, but don't expect them to eliminate your power bill.

Newly NZX-listed Meridian Energy beat its prospectus forecast for earnings thanks to high inflows to hydro lakes.

BP will lease space for its new head office in Mansons TCLM's newly constructed five green-star rated building at 73 Remuera Rd in Newmarket.

Contact Energy reported a 5 per cent improvement in earnings with improved sales and lower wholesale electricity prices.

All in all, the Greens' scheme will appeal mainly to those who crave energy independence - not anywhere near the 10,000 a year the party predicts will install solar panels.

Your Views: Under the Solar Homes scheme, New Zealanders would be able to borrow up to $15,000 from the Government to install photovoltaic panels and then pay it back via their council rates over 15 years. Is this a good idea?

Kiwis would be able to borrow up to $15,000 to install photovoltaic panels at home and pay back via rates.

Prime Minister John Key has defended his Government's $30 million payout to the owners of the Tiwai Point aluminium smelter after the Greens and Labour said parent company Rio Tinto's US$3.7 billion profit showed the payment was unjustified.

Profits are up 10pc at world mining giant Rio Tinto - in a year where NZ taxpayers paid the company $30m to keep the Tiwai Pt smelter open.

Opposition's single-buyer model misses target, Business NZ-sponsored probe finds.

In the socialist state of Venezuela that is home to the world's largest oil and gas reserves, petrol is cheaper than water. But not for much longer.

Feel you're paying too much for electricity? Not according to a new report, which says consumers never actually paid the full cost of building NZ's power stations.

Shares in lightbulb maker Energy Mad surged after it announced it had begun selling its energy-efficient products online in the United States through internet retail giant Amazon.

Global demand for solar panels is expected to hit a three-year high this year and a local company says falling prices are set to spark "explosive growth in solar energy"".

Texan oil giant Anadarko's environmental credentials and the future of its New Zealand offshore exploration programme are being questioned as the company faces a US toxic site cleanup and compensation claim which could reach US$14 billion ($16.9 billion).

Greenpeace has opened its case against the Environmental Protection Agency and Texan oil giant Anadarko in the High Court at Wellington.

Indigestion triggered by the size of the Govt's power company floats and investors wanting to take profits are being blamed for a fall in NZ's benchmark index.

Government efforts to entice major global oil and gas producers to New Zealand has borne fruit, with Norway's state-owned Statoil and Australian heavyweight Woodside Petroleum winning exploration licences in the latest permit awards.

The Govt has revised the estimate of how much it expects to receive from its partial asset sales down to between $4.6 to $5b.