Powering a quarry beyond the grid
In Kyogoku, Hokkaido, within view of Mount Yotei, Kubo Saiseki Industry operates a quarry in one of Japan’s most demanding environments. The site sits in remote mountain terrain, beyond the reach of the local utility company, and winter snowfall here is so heavy that the quarry closes entirely from December to March. When it reopens in April, every motor, conveyor belt and piece of plant equipment, along with the workers’ rest area, runs on generator power alone.
For an operation like this, the generators are the power supply. There is no grid to fall back on, so the equipment on site has to be dependable from the first day of the season to the last. That is why Kubo Saiseki Industry relies on Denyo.
Delivering through the snow
In 2024, two of the quarry’s generators were due for periodic replacement. With Japan’s fiscal year ending in March, the customer asked for both new units to be delivered before the month was out, in time for the season ahead.
Late March in Hokkaido still brings heavy snow, and the mountain roads leading to the quarry made it extremely difficult for the trailer carrying the generators to get through. Despite these conditions, Denyo delivered both DCA-500ESK generator sets on time.
Built for sites like this
Each DCA-500ESK is a complete, enclosed generator set that can be transported by trailer. That portability makes it possible to bring full-scale power to a remote mountain site like this one. Once on site, the two units operate in parallel, forming a single power source for the entire quarry.
Since delivery, both generator sets have met the site’s power needs as expected. By purchasing them, the customer placed its long-term trust in Denyo to deliver dependable power at a site where generators are the only source of electricity.
Heavy snow. Remote terrain. Powered by Denyo.
