Australia’s grand hydrogen export
ambition faces its first market test with Japan’s largest power
generator calling for competitive bids to supply the hydrogen product
ammonia as it attempts to cut carbon emissions in its coal-fired power
plants.
However, the terms of the bid exclude
fuel from a showpiece $1 billion hydrogen plant Australian energy
giant Woodside plans to build near Perth.
On Friday JERA announced it needed up to
500,000 tonnes of ammonia a year from 2027, into the 2040s.
JERA, a fuel procurement and power
generation joint venture between the power utilities that serve
Tokyo and Chubu, plans to replace some coal burnt in its power
stations with ammonia that releases no carbon emissions.
Martin Tengler, a hydrogen analyst with
energy research house BloombergNEF, said if a deal is concluded it
would be significant.
“It’s the
first large Asian buyer asking for supply, rather than a supplier
looking for a buyer,” he said.
Mr Tengler said 500,000 tonnes of
ammonia a year, which requires 88,000 tonnes of hydrogen, was enough
to supply 20 per cent of the fuel to a one-gigawatt power plant.
Green hydrogen is produced from
electrolysers powered by renewable energy to separate hydrogen from
water and is emissions-free.
Currently, nearly all the world’s
hydrogen is produced by splitting natural gas into hydrogen and
carbon dioxide, with significant carbon emissions. If some carbon
dioxide is captured and stored the product is marketed as blue
hydrogen.
On Friday JERA announced it needed up to
500,000 tonnes of ammonia a year from 2027, into the 2040s.
JERA, a fuel procurement and power
generation joint venture between the power utilities that serve
Tokyo and Chubu, plans to replace some coal burnt in its power
stations with ammonia that releases no carbon emissions.
Martin Tengler, a hydrogen analyst with
energy research house BloombergNEF, said if a deal is concluded it
would be significant.
“It’s the
first large Asian buyer asking for supply, rather than a supplier
looking for a buyer,” he said.
Mr Tengler said 500,000 tonnes of
ammonia a year, which requires 88,000 tonnes of hydrogen, was enough
to supply 20 per cent of the fuel to a one-gigawatt power plant.
Green hydrogen is produced from
electrolysers powered by renewable energy to separate hydrogen from
water and is emissions-free.
Currently, nearly all the world’s
hydrogen is produced by splitting natural gas into hydrogen and
carbon dioxide, with significant carbon emissions. If some carbon
dioxide is captured and stored the product is marketed as blue
hydrogen.
Proponents of blue hydrogen say its
production can be increased more quickly and at lower cost than
green hydrogen for this decade at least.
Fortescue chair Andrew Forrest, a vocal
detractor, said at last year’s COP26 climate summit that blue
hydrogen was a “highway to climate disaster,” delaying the rapid
reduction in carbon emissions needed to halt dangerous global
warming.
A JERA spokesman said it would require
at least 60 per cent of carbon dioxide emitted from blue hydrogen
production to be captured and either stored or used for so-called
enhanced oil recovery where the pollutant is injected into oil
reservoirs to drive increased production.
Counting carbon dioxide used for
enhanced oil recovery as a reduction in emissions is controversial
as the emissions from using the additional oil will negate the
benefit of storing the CO2. The federal government in 2021 excluded
the practice from its emissions reduction fund.
Last week Woodside chief executive Meg
O’Neill said any moves by the gas company into hydrogen production
would need to be customer-led.
“We’re not going to be risking billions of dollars of shareholder
capital without confidence that our product has a viable market,” Ms
O’Neill said.
However, most hydrogen from Woodside’s
$1 billion H2Perth plant it plans to sanction in 2024 will be
ineligible to supply the biggest market opportunity to date for the
nascent clean hydrogen trade, despite Woodside partnering with JERA
two years ago to study the use of ammonia in coal-fired power
plants.
Woodside plans to offset emissions from
the plant with vegetation planting, a practise regarded by some as
less reliable than underground storage as the plants are exposed to
fire and drought.
A JERA spokesman said it would not accept
offsets such as tree planting.
Some hydrogen at Woodside’s plant will be
produced by electrolysis, but it would not meet the Smart Energy
Council’s zero carbon certification scheme for renewable hydrogen as
much of the electricity used would not be renewable.
InterContinental Energy is the main
proponent behind two of Australia’s biggest green ammonia projects,
including the $US36 billion ($50 billion) Asian Renewable Energy Hub
in WA’s Pilbara.
InterContinental
Energy chief commercial officer Philip Jones said the JERA tender
was an important milestone for the development of an ammonia fuel
market and a tangible indication of the economic opportunity for
green ammonia exports.
The Asian Renewable Energy Hub will
eventually grow to produce 10 million tonnes of ammonia a year if it
sanctioned as planned in 2025.
BloombergNEF analyst Martin Tengler said
further growth in Japanese ammonia demand would require stronger
incentives such as a carbon price or subsidies.
However, BNEF expects Japan will be able
to generate renewable energy, including from offshore wind farms,
cheaper than burning imported ammonia.
JERA is the largest buyer of Australian
LNG with equity stakes in four plants. In 2020 JERA set itself a
target of zero carbon emissions by 2050 but in December 2021
purchased a 12.5 per cent stake in Santos’ Barossa project that will
produce Australia’s most carbon-intensive LNG.