gremz,Inc.
3150・Prime Market・Electric Power & Gas
Energy Cost Solutions Business
Flow-plus-stock revenue business centered on the sale of commercial solar power systems and storage batteries to corporate customers
| Period | Current | Previous | Change |
|---|---|---|---|
| Net sales | ¥14,693 million | ¥13,939 million | ↑ |
| Segment profit | ¥5,032 million | ¥4,533 million | ↑ |
| Segment assets | ¥12,097 million | ¥9,497 million | ↑ |
| Depreciation | ¥140 million | ¥126 million | ↑ |
| Increase in tangible/intangible fixed assets (capital expenditure) | ¥1,998 million | ¥309 million | ↑ |
Business Details
Primarily targeting corporate customers, the segment sells Commercial Solar Power Generation Systems and Commercial Storage Battery as core products, and also provides Basic Electricity Rate Reduction Consulting and Energy-Saving Equipment Sales. It develops proposals to install solar power systems on the roofs of customer factories to encourage self-consumption. From FY2026 (ending March 2026), the former Energy Cost Solutions Business and Smart House Project Business were integrated and reorganized with the aim of strengthening unified management through efficient use of human capital. This also includes the Grid-Connected Storage Battery Business (Battery Park) (stock revenue).
Recent Overview
Increased revenue and profit driven by expanded sales of commercial solar/storage batteries and the start of grid-connected storage battery operations
In FY2026 (ending March 2026), the segment achieved net sales of ¥14,693 million (up 5.4% year on year) and segment profit of ¥5,032 million (up 11.0% year on year). Management resources were concentrated on expanding sales of Commercial Solar Power Generation Systems as the core growth driver. In the Grid-Connected Storage Battery Business, the first facility, Iga Battery Park, began operations in the wholesale electricity market in March. Meanwhile, sales of residential solar power and storage batteries to general consumers were scaled down due to declining profitability caused by rising event costs at large commercial facilities, among other factors, and ¥111 million in restructuring costs related to the shift toward corporate-focused sales was recorded as an extraordinary loss. Capital expenditure expanded to ¥1,998 million, approximately 6.5 times the prior-year level, mainly due to construction of grid-connected storage battery facilities.
Key Products
Growth Drivers
- Expanding corporate demand for Commercial Solar Power Generation Systems amid rising electricity costs
- Policy tailwinds from the 7th Strategic Energy Plan's target of a 23-29% solar power ratio by FY2040
- Building a new stock revenue source through the sequential launch of the Grid-Connected Storage Battery Business (plan for 6 facilities)
- Growing demand for renewable energy utilization driven by GX (Green Transformation) promotion
- Differentiation and stable order intake leveraging sales know-how for small and medium-sized low-voltage electricity customers
- Strengthening sales capability through active promotion of partnerships with other companies and expansion of human resources
- Increasing customer unit prices through cross-selling via consulting-based sales
Risks
- Business performance depends on the ability to secure and train capable sales personnel and the speed of doing so
- Risk of fluctuations in procurement prices for solar panels, storage batteries, and other equipment
- Demand fluctuations due to changes in laws and regulations (such as revisions to renewable energy-related systems)
- Risk of electricity market price fluctuations and delays in commissioning within the Grid-Connected Storage Battery Business
- Restructuring costs arising from the scale-down of sales to general consumers
- Risk of declining profitability due to rising event costs at large commercial facilities, among other factors
Last updated: June 22, 2026

