SHANGHAI: The Chinese industrial hub of Guangdong, an economic powerhouse comparable in size to South Korea, has seen some electricity prices almost double due in part to constraints on the supply of natural gas from the Middle East.
The coastal province hosts the country’s largest fleet of gas-fired power stations, leaving it particularly vulnerable to a war that has choked-off shipments from the Persian Gulf.
Spot rates climbed to nearly 680 yuan per MWh on April 14 – a three-year high – from an average of around 350 yuan in the previous month.
Guangdong’s industrial users have locked in about 80% of their electricity needs at far lower prices via annual contracts, said Sharon Feng, special advisor at Azure International, a green energy consultancy.
But the spot market is a crucial venue for generators to meet fluctuations in daily demand. Tighter gas supply is among the factors dragging prices higher.
“Spot transactions, even as a small portion of total supply, play a critical role in anchoring pricing for monthly and long-term contracts,” she said.
“Gas-fired generation, while limited in scale, can materially influence system pricing by setting the marginal clearing price when dispatched.”
Firmer industrial demand for power, a warmer-than-normal spring and seasonal maintenance at coal-fired plants are other variables contributing to the market’s imbalance, according to analysts.
Even before the conflict, seaborne liquefied natural gas (LNG) was a more expensive option for producing electricity.
Current LNG deliveries to Guangdong have fallen nearly 40% from the same time last year, according to ship-tracking data compiled by Kpler.
The upshot is that gas now costs over 60% more than renewable sources, according to the power exchange.
Local power giant Guangdong Energy Group Co has a 10-year contract to buy LNG from QatarEnergy, a deal that’s been suspended since the Strait of Hormuz was effectively blocked to traffic.
Gas power accounted for about 22% of the province’s total capacity, according to BloombergNEF.
Guangdong is also home to about one fifth of China’s gas import facilities.
Those terminals are increasingly likely to fall idle as the province leans more heavily on coal, the country’s main power source, to meet peak summer demand, said Penny Chen, a senior director at Fitch Ratings.
Efforts to accelerate the province’s nuclear buildout, in particular, should forestall the possibility of blackouts this summer, said Azure’s Feng.
The first of two new reactors scheduled in Guangdong this year began operating on April 20.
But the possibility of a strong El Nino and hotter weather in the summer is an additional threat to the grid’s stability, at a time when electricity demand usually spikes because of air conditioning use. — Bloomberg
