Output Curtailment in Solar Power Generation
First written in FY2019-Q3. 11 of 26 entries say "Worsened", first in FY2020-Q3. Latest entry: 2026-07-31.
Astmax moved to the "Worse" side of this theme in 2019, the same year as the typical company in this theme.
The whole theme swung hardest in 2025: 5 of 14 companies on the "Worse" side.
4 other companies' latest entry also says "Mitigated".
- FY2025MitigatedAnnual report
「Electricity sales revenue increased year on year, due in part to a year-on-year decrease in the negative adjustment burden from electricity sales under economic output curtailment (online proxy control).」
The burden from economic output curtailment remains, but decreased year on year, while electricity sales revenue increased. - FY2025-H1MitigatedAnnual report
「Electricity sales revenue increased year on year, due in part to the completion of a solar power plant owned by the Group and the start of electricity sales in April, as well as a year-on-year decrease in the negative adjustment burden from electricity sales under economic output curtailment (online proxy control).」
The negative adjustment burden from electricity sales under economic output curtailment decreased year on year, and electricity sales revenue increased. Output curtailment risk remains, but the burden was mitigated in the interim period. - FY2024WorsenedAnnual report
「A significant negative adjustment burden from electricity sales settled during the consolidated fiscal year arose in the Kyushu region.」
Due to the settlement of economic output curtailment, adjusted electricity volume was 925,888kWh in fiscal 2023, and the negative adjustment burden in the Kyushu region affected earnings from the renewable energy business. - FY2024-Q1WorsenedAnnual report
「For the purpose of optimizing output control and grid operations, economic output control, or online proxy control, began in December 2022 within the jurisdiction of Kyushu Electric Power. Under this system, offline control operators pay compensation instead of online control operators implementing output control. Settlement for economic output control takes place approximately 2 months later, and the negative adjustment burden on power sales settled during the cumulative first quarter of the fiscal year under review was substantial.」
Economic output control, a new output-control system, began, and the negative adjustment burden on power sales arising from settlement approximately 2 months later became a factor weighing on results for the quarter. - FY2023-Q3MitigatedAnnual report
「Output curtailment orders have been issued to maintain the balance between electricity supply and demand and ensure a stable power supply as renewable energy increases. During the cumulative third quarter of the fiscal year under review, there were a total of 2 orders at the Group's power plants in Aomori Prefecture and 8 in Kumamoto Prefecture, down 14 from the same period of the previous year.」
Output curtailment occurred a total of 2 times in Aomori Prefecture, while the total in Kumamoto Prefecture was 8, down 14 from the same period of the previous year. The risk of output curtailment remains, but the number of occurrences declined significantly in Kumamoto Prefecture, where the main power plants are located. - FY2023-Q2MitigatedAnnual report
「Output curtailment was ordered a total of 6 times at the power plants in Kumamoto Prefecture during the first-quarter consolidated accounting period, partly because there were many unusually hot summer days, a decrease of 11 from the same period of the previous year. No orders were issued during the second-quarter consolidated accounting period under review.」
Output curtailment occurred for the first time in Aomori Prefecture, with 2 orders during the first quarter, while no new orders were issued in Kumamoto Prefecture during the second quarter, and the number of orders also declined year on year. - FY2023-Q1Output curtailment occurred for the first time in Aomori, while it declined in KumamotoAnnual report
「During the cumulative first quarter of the fiscal year under review, output curtailment was ordered for the first time at the Group's power plants in Aomori Prefecture, a total of 2 times. In Kumamoto Prefecture, however, the number of orders totaled 6, down 10 from the same period of the previous year, partly because there were many unusually hot summer days.」
Output curtailment occurred for the first time at the Group's power plants in Aomori Prefecture, while the number in Kumamoto Prefecture fell to 6, down 10 from the same period of the previous year, showing differing trends by region. - FY2022WorsenedAnnual report
「During the fiscal year under review, the number of output curtailment orders at the Group's power plants in Kumamoto Prefecture reached a total of 28.」
Output curtailment orders at the power plants in Kumamoto Prefecture totaled 28 for the full year, an increase of 6 from the same period of the previous year. The risk of lower power sales revenue due to output curtailment has increased. - FY2022-Q3WorsenedAnnual report
「The number of output curtailment orders at the power plants in Kumamoto Prefecture during the cumulative third quarter of the fiscal year under review reached a total of 22.」
Output curtailment at the power plants in Kumamoto Prefecture increased from 17 times in the cumulative second quarter to 22 times, an increase of 8 from the same period of the previous year. - FY2022-Q2WorsenedAnnual report
「The number of output curtailment orders at the power plants in Kumamoto Prefecture during the cumulative second quarter of the fiscal year under review reached a total of 17.」
Output curtailment at the power plants in Kumamoto Prefecture increased by 3 from the same period of the previous year and also rose from 16 times in the previous quarter. - FY2022-Q1WorsenedAnnual report
「During the cumulative first quarter of the fiscal year under review, output curtailment was ordered a total of 16 times at the power plants in Kumamoto Prefecture.」
The number of output curtailment orders at the power plants in Kumamoto Prefecture reached 16 during the cumulative first quarter, an increase of 3 from the same period of the previous year. - FY2021-Q2WorsenedAnnual report
「For existing projects, within the jurisdiction of Kyushu Electric Power, where the Group's solar power generation facilities operate, output curtailment was ordered a total of 14 times at power plants in Kumamoto Prefecture during the cumulative second quarter of the fiscal year under review, due to the need to maintain the balance between electricity supply and demand and ensure a stable power supply.」
Output curtailment was ordered a total of 14 times at the power plants in Kumamoto Prefecture during the cumulative second quarter, up from 11 times during the cumulative first quarter. - FY2021-Q1WorsenedAnnual report
「For existing projects, within the jurisdiction of Kyushu Electric Power, where the Group's solar power generation facilities operate, output curtailment was ordered a total of 11 times at power plants in Kumamoto Prefecture during the cumulative first quarter of the fiscal year under review, due to the need to maintain the balance between electricity supply and demand and ensure a stable power supply.」
Output curtailment was ordered a total of 11 times at the power plants in Kumamoto Prefecture during the cumulative first quarter, resulting in the specific occurrence of output curtailment risk. - FY2020-Q3WorsenedAnnual report
「In the Kyushu region, output curtailment was ordered multiple times in winter as well as spring, while the summer was affected by insufficient solar radiation due to prolonged rain.」
In the Kyushu region, output curtailment was ordered multiple times in winter in addition to spring, and insufficient solar radiation also occurred. - FY2020-Q2RestatedAnnual report
「In the Kyushu region, output curtailment was ordered multiple times in April and May, while the summer was affected by insufficient solar radiation due to prolonged rain.」
The company continues to describe multiple output curtailment orders in the Kyushu region and insufficient solar radiation due to weather conditions. - FY2020-Q1MaterialisedAnnual report
「Although output curtailment orders were issued in Kyushu in April and May, the expansion of the group's existing solar power generation facilities during the previous consolidated fiscal year had a positive effect, enabling it to increase segment profit.」
Output curtailment was actually ordered in the Kyushu region. The company states that segment profit increased in the quarter because expansion of existing facilities proved effective. - FY2019MaterialisedAnnual report
「Within the jurisdiction of Kyushu Electric Power, connection capacity for renewable energy, particularly solar power generation, has been steadily increasing. As a result, output curtailment was ordered to maintain the balance between electricity supply and demand and ensure a stable power supply.」
The company states that output curtailment orders were actually issued within the jurisdiction of Kyushu Electric Power and specifies the risk that power sales revenue from its operating power plants may decline each time curtailment occurs. - FY2019-Q3First statedAnnual report
「Within the jurisdiction of Kyushu Electric Power, connection capacity for renewable energy, particularly solar power generation, has been steadily increasing. As a result, output curtailment was ordered to maintain the balance between electricity supply and demand and ensure a stable power supply.」
The company describes the actual issuance of output curtailment orders within the jurisdiction of Kyushu Electric Power, against the backdrop of increasing connected solar power generation capacity, as a new business-environment risk.