Retail power and gas heavyweights Kansai Electric Power, or Kepco, and Osaka Gas are locked in a struggle for dominance in the Kansai region — which includes Osaka, the nation’s second-biggest city, and boasts an economy nearly the size of South Korea’s.

After the 2011 Fukushima nuclear disaster, the country’s power monopoly system — in place for nearly 70 years — was partially dismantled in 2016, followed by the liberalization of the retail gas market a year later.

Hundreds of new power sellers soon arrived on the scene, some with just a few dozen accounts.

Since then the Kansai region has seen the most gas customers, and the second-highest number of power customers, switch providers. Nowhere is that churn more evident than at Kepco and Osaka Gas.

Kepco pulled about 580,000 retail gas customers from Osaka Gas, but lost about 680,000 power customers in return. Overall, Kepco lost nearly 1.7 million power users. But its shares have risen 27 percent since the beginning of 2017 compared with about a 1 percent decline for Osaka Gas.

“It’s like elephants battling horses. When power and gas firms battle it out against Tokyo Electric or Kepco for an extended period, gas firms could lose,” said Reiji Ogino, senior analyst at Mitsubishi UFJ Morgan Stanley Securities.

He said Kepco is predicted to shed 10 to 20 percent of its customers in the next few years. Osaka Gas, however, is expected to see its customer base shrink by 20 to 30 percent, he added. That is because power companies, which tend to be larger and more diverse, can better weather deregulation, Ogino said.

Kepco, for instance, now sells gas to retail customers. And the company, already the third-largest power supplier in Japan, has an additional advantage: Over the past 14 months it has resumed operations at four reactors that had been idled after the Fukushima disaster. That has allowed it to cut its electricity prices by 5.4 percent in July, making them the fourth-lowest among the former 10 power monopolies.

A price war is especially beneficial for large users such as 7-Eleven Japan, which has switched its thousands of convenience stores to Kepco. The savings could amount to tens of millions of dollars per year, according to local media reports.

Osaka Gas, which has 2 gigawatts of domestic power plant capacity mostly fired by gas, reacted by undercutting Kepco’s prices. But Kepco still offers cheaper combined power and gas service than Osaka Gas. This year it also began offering additional discounts, such as waiving basic monthly fees for gas, which have accelerated the pace of customer acquisitions from its chief rival.

Ogino said that the power and gas industries in Japan are likely to enter a period of alliances of former power and gas monopolies in different regions by 2020. The 10 years after that might see mergers and acquisitions, he added.

But he said a merger of the two Osaka-area rivals would be unlikely.

“I don’t think the trade ministry would allow the creation of one giant power and gas company in the Kansai region because the competition principle would not work,” Ogino said.

Shinichi Yamazaki, senior sector analyst at Okasan Securities, agreed.

“Chances for acquisitions or mergers in (the) Kansai region may be slim because the companies are large in size, but there may be such cases in remote areas,” Yamazaki said.

Kepco has tried to strengthen its position further by buying stakes in LNG projects overseas, getting into retail gas sales and even delving into real estate.

“The history of their battle goes back two or three decades, but Osaka Gas thinks it’s no match for Kepco and has been diversifying its businesses from way back,” he said. “History repeats itself, and the battle will continue.”

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