Rachel Williamson, Author at Renew Economy

Rachel Williamson

Contributor

Rachel Williamson is a science and business journalist, who focuses on climate change-related health and environmental issues.

Hydrogen

H2Co launches as green hydrogen retailer to keep fuel costs down
Countrywide Hydrogen says it will sell the hydrogen it produces in Tasmania directly via a new brand called H2Co Energy to keep down costs.
Rachel Williamson

Jul 17, 2023

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Hydrogen

Queensland promises millions more for massive green hydrogen export plans
Queensland promises $8.5m more to Korea-backed plans for green hydrogen export facility in new pitch on its key role in the Asia-Pacific supply chain.
Rachel Williamson

Jul 17, 2023

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Hydrogen

Australian start-up targets fertiliser and hydrogen markets with plasma-to-ammonia tech
Australian company says its technology uses green electricity to turn air into plasma, breaking apart nitrogen before turning it into ammonia.
Rachel Williamson

Jul 13, 2023

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Hydrogen

Plug Power wins mandate for two 5MW electrolysers in Tasmania
Countrywide is neck and neck with rival Line Hydrogen to refuel Tasmanian fuel cell-electric trucks.
Rachel Williamson

Jul 12, 2023

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Hydrogen

Rio Tinto lands ARENA funds to cut emissions at alumina refinery with green hydrogen
ARENA to partly fund $111 million project, including a green hydrogen electrolyser to help decarbonise the hard-to-abate industry.
Rachel Williamson

Jul 12, 2023

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Queensland slammed for bespoke demands on inverters in controversial rule change
The state’s draft connection rules have thrown up another gem, but this one will upend the state’s inverter market.
Rachel Williamson

Jul 10, 2023

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Battery

Billionaire-backed 100-hour iron-air battery gets go ahead to help replace coal
Backed by the likes of Bill Gates and Andrew Forrest, approved iron air battery is one of two set to replace retiring coal power plants.
Rachel Williamson

Jul 10, 2023

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Wind turbine maker’s woes multiply as massive blade breaks off in Brazil
Siemens woes deepen with another big blade failure. At least two Australian wind farm projects are considering models from the same series.
Rachel Williamson

Jul 10, 2023

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What’s really behind that meter? New study to unlock hidden network secrets
How to get data about household solar, storage and EVs out of distributors’ black boxes and in the hands of the agencies in charge of planning and managing the grid.
Rachel Williamson

Jul 7, 2023

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Hydrogen

Bowen sets 1,000MW electrolyser target as hydrogen strategy gets revamp
The new focus on green hydrogen is on how to build a domestic industry, with the previous focus on exports relegated to a few paragraphs.
Rachel Williamson

Jul 7, 2023

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Solar

Flexible export limits: The next phase for rooftop solar kicks off in Australia
The much awaited rules will allow rooftop PV to become a valuable part of the grid, and not just a side hustle.
Rachel Williamson

Jul 6, 2023

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Policy & Planning

Planet breaks temperature record for second day in a row, experts warn of worse to come
Land temperatures jump to new daily record – the second in two days – and sub-sea temperatures have been high for months.
Rachel Williamson

Jul 6, 2023

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