08/10/24
Dutch TTF gas rises through coal-to-gas switching range
London, 8 October (Argus) — A rally in recent weeks has pushed gas prices up to
a range at which even older coal-fired power stations would be more profitable
to run than some of the most efficient gas-fired power stations. European gas
benchmark price the Dutch TTF front-month has risen strongly over the past two
weeks, having closed at €40.57/MWh on 7 October, up from a recent low of
€32.80/MWh on 19 September. The higher gas prices have outstripped similar price
increases of other energy-related commodities such as coal, with the TTF
front-month contract approaching the top of the gas-to-coal fuel-switching range
( see TTF front-month graph ). In assessments on 3 and 4 October, even older
coal-fired power stations with an efficiency of 42pc would would be more
profitable to run than the newest gas-fired turbines with an efficiency of 60pc,
for the first time since early December last year. Geopolitical tensions in the
Middle East have contributed to gas' price increase. But with muted LNG
deliveries to the continent so far this shoulder season and colder weather than
last year, European gas storage sites are less full than they were a year
earlier. European stocks were filled to about 94.5pc of capacity on the morning
of 7 October, according to GIE transparency platform data, down from 96.7pc a
year earlier. Demand has already stepped up strongly in some countries, pushing
the continent to some days of net withdrawals from storage earlier in the autumn
than in most recent years. While coal prices have also stepped up slightly in
turn, partly in reaction to the expectations of higher coal burn, their slower
upwards momentum has brought coal largely ahead of gas in the merit order. Many
coal trading firms have banked on a strong coal burn this winter, with low
trading activity in the shoulder season so far, which incentivises trading
companies to keep coal prices close to the fuel-switching level, market
participants have told Argus . And prompt prices for European CO2 emissions
allowances in September and October so far have been about 20pc lower on the
year, closing at an average of €64.24/t, compared with €81.60/t over the same
period in 2023. Lower emissions prices benefit higher coal burn as coal is more
CO2-intensive than gas, requiring operators to purchase and surrender more CO2
emissions certificates. A similar price movement happened last autumn, when a
rally in early October pushed the TTF front-month price to the top of the
fuel-switching range. But from early December, when a mild winter reduced the
remaining risks for gas security of supply, prices fell through the
fuel-switching ranges sharply , to the bottom of the range. Impact probably
highest in Germany Germany is one of the last remaining markets with large
numbers of both coal- and gas-fired power stations in Europe, leaving the market
able to react to price movements in either market more flexibly. The power
sector can still provide considerable demand-side flexibility in the German gas
market, while coal phase-out plans in the rest of Europe mean the scope for
alternating between the thermal generation fuels has narrowed. Gas prices can
provide the signal that the market has spare gas for the power sector to burn by
falling into coal-to-gas switching territory, while gas prices climb above the
fuel-switching range to discourage gas-fired generation when the gas market is
tighter. Last winter, gas prices at the very bottom of the fuel-switching range
encouraged the highest gas-fired generation in Germany in at least a decade ,
according to data from European system operators' association Entso-E. While
many German coal and gas-fired plants are combined-heat-and-power plants, which
do not respond to price incentives as flexibly as pure power plants, the impact
of the fuel switch on gas' share in the thermal generation mix was still visible
last winter in Germany. In October and November, with prices at the top of the
range, gas-fired generation at 6GW met 55pc of the combined call on coal and
gas. But when prices dropped through the switching range, gas' share increased
to 63pc in December-March, with about 7.3GW of gas-fired generation ( see
generation percentage graph ). In addition, the German storage levy of
€2.50/MWh, which power producers must pay, pushes gas prices up further in the
fuel-switching range. The levy, which is likely to rise further from next year ,
thus further decreases gas' profitability compared with coal, which could be
detrimental for Germany's own coal phase-out plans. By Till Stehr TTF
front-month vs fuel-switching range €/MWh German gas- and coal-fired generation
and fuel-switching price pc, €/MWh Send comments and request more information at
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