How can New Zealand reach 100% renewable energy?
By Ralph Sims Renewable energy sources currently supply around 40% of total energy demand in New Zealand. Increasing this share is critical to reducing the current level of greenhouse gas emissions to meet our international obligations and the 2050 net zero target...
How much of the worldâs energy comes from fossil fuels and could we replace it all with renewables?
By Robert McLachlan How are fossil fuels formed, why do they release carbon dioxide and how much of the worldâs energy do they provide? And what are the renewable energy sources that could replace fossil fuels? Fossil fuels were formed over millions of years from the...
Is natural gas really cheaper than renewable electricity?
By Ralph Sims The government wants us to phase out fossil fuels. Yet natural gas is much cheaper for households to buy per kWh than electricity. Why? Natural gas is often touted as a transition fuel to use while we move away from coal and oil and as renewable energies...
How can we use and waste less energy?
By Mike Joy If we keep trying to maintain our current growth trajectory, built on a one-off fossil bonanza, we will destroy the already stressed life-supporting systems that sustain us. As countries explore ways of decarbonising their economies, the mantra of âgreen...
Cleaning up: Can electricity replace fossil fuels in time?
By Jen Purdie As New Zealand gets serious about climate change, can electricity replace fossil fuels in time? As fossil fuels are phased out over the coming decades, the Climate Change Commission (CCC) suggests electricity will take up much of the slack, powering our...Subscribe by Email
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