Conversion works for online curtailment

Hello, this is Shugyo from JSEO.
In this blog, I would like to talk about the conversion work for online curtailment we conducted in Kyushu.

Just a few days ago, we conducted online conversion work at a power plant in Fukuoka Prefecture.
The power plant has a capacity of 1MW and has been in operation for about 8 years, making it a relatively early stage power plant.

It was a large-scale construction project involving multiple companies, but we were able to successfully complete the work, which included refurbishing the power conditioning system (PCS), changing the communication method between the PCS and the network, utilizing overhead power lines, refurbishing the monitoring system, and building a network environment.

The power plant owner had been hoping to eliminate the need for on-site support on weekends/holidays, and was very relieved that the online conversion went smoothly to solve this.

In addition to the online conversion work, we also conducted a detailed inspection of the PCS and panels.
We found several defective parts and will proceed with repairs after consulting with the owner.

*Panel cracks found during inspection

In Kyushu, the shift to online curtailment has been progressing since curtailment was implemented ahead of other regions. As of July 2021, more than 50% of all solar power plants in Kyushu have switched to online curtailment as shown in the table below.
More than 90% of the power plants we manage in Kyushu are operated with online curtailment.

As of Sep. 2020, 26.4% of RE power plants had completed the response in Kyushu area, which will increase to 50.8% as of 2021 July as below.

*Reference: Agency for Natural Resources and Energy, “The Next Generation of Electric Power Networks” (December 24, 2021)

As mentioned in our last blog, we are currently running a special offer on online conversion works for Hokkaido, Tohoku, Chugoku, and Shikoku areas.

We are offering a 20% discount from our usual prices. We have a track record of installing a total of 30 MW of online systems.

If you have any questions about going online, please feel free to contact us.
Thank you for reading to the end!



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