The 49.9 kW low-voltage grid-scale BESS is a new power infrastructure business you can start with as little as approximately 6 tsubo of land. It offers landowners long-term rental income and gives investors and business partners a revenue opportunity through the power market. With a 15-year warranty, you can operate with confidence over the long term.
What Is Low-Voltage Grid-Scale BESS?
Low-voltage grid-scale BESS refers to a battery energy storage system with an output of 49.9 kW or less that connects to the electric power grid (grid interconnection) and participates in power markets such as the frequency regulation market. Unlike household battery storage, the primary purpose of grid-scale BESS is to connect to the utility grid and "earn revenue from the power market."
The system is designed to operate under the reformed frequency regulation market rules (shift to day-ahead trading) taking effect from FY2026 onward, providing a structure that aims to secure stable revenue (subject to market prices and utilization rates).
Two Ways to Use It
A. For Landowners — Lease Your Land and Earn Long-Term Rental Income
Simply by leasing approximately 6 tsubo of idle land (parking lots, farmland, vacant lots, etc.), you can expect rental income of around ¥40,000 per month (estimated over 15 years; actual amounts vary by conditions). Since REVIX JAPAN covers all costs for installation, management, and removal, landowners pay nothing upfront.
Key Features for Landowners
- Zero upfront or management costs (just lease your land)
- Long-term stable income over 15 years (estimated)
- Equipment removal and site restoration upon contract end
Detailed Page for Landowners →
B. For Investors and Business Partners — Secure a Site and Earn from the Power Market
This service is for operators who independently secure a site eligible for a grid interconnection feasibility study response and install and operate the BESS system. The primary revenue source is standby compensation (ΔkW value) from participation in the frequency regulation market (e.g., estimated annual revenue of approximately ¥480,000; actual amounts vary by conditions).
We accommodate a variety of approaches, including schemes to replace solar power plants and leveraging existing land transaction networks to secure sites.
Key Features for Investors and Business Partners
- End-to-end support from site acquisition through installation and market participation
- Standby compensation from the frequency regulation market (compliant with FY2026 regulations)
- Scale up through parallel deployment of multiple units
Detailed Page for Investors and Business Partners →
Main Specifications
| Item | Specification |
|---|---|
| Output | 49.9 kW |
| Capacity | 100 kWh |
| Warranty Period | 15 years |
| Approximate Installation Area | ~6 tsubo (varies by conditions) |
| Primary Revenue Source | Frequency regulation market (primary frequency response offline, etc.) |
| Grid Interconnection | Low-voltage (6,600 V or below) |
Specifications, pricing, and revenue are subject to conditions. Please contact us for details.
How Revenue Works (Overview)
Low-voltage grid-scale BESS earns compensation by participating in the "frequency regulation market," through which the transmission system operator (TSO) procures balancing services to stabilize the power grid.
Primary Revenue Source: Frequency Regulation Market (Primary Frequency Response — Offline)
- ΔkW (standby compensation): compensation is generated simply for being on standby as a balancing resource
- kWh (dispatch compensation): additional compensation when actual charge/discharge is instructed
The hallmark of this structure is that compensation is paid just for "being on standby" — even if the unit is never actually dispatched — creating a framework that aims to secure stable revenue (subject to market prices and utilization rates).
Learn More About the Revenue Model →
Installation Process (Overview)
- Consultation & Site Review — Confirm the location, area, and grid connection feasibility
- Revenue Estimate & Proposal — Present a tailored estimate based on your conditions
- Application & Contract — Execute a lease agreement or equipment sales contract
- Installation Work — Foundation, electrical, communications, and fencing work (approx. 2–4 months)
- Grid Interconnection & Market Entry — Begin market participation after connecting to the TSO's grid
- Long-Term Operation & Revenue Receipt — 15 years of stable operation
Learn More About the Installation Process →
Frequently Asked Questions (Excerpts)
Q. Can it be installed on farmland? Agricultural land conversion procedures may be required. We will guide you based on the specific location and circumstances, so please feel free to consult us first.
Q. How is it different from a household battery? Household batteries are designed for self-consumption and backup during power outages. Low-voltage grid-scale BESS is a commercial asset designed to connect to the power market and generate revenue.
Ready to Get Started?
Contact us with any questions or to request materials.
Apply or Request Materials (For Both Landowners and Investors) Investors and Business Partners — Schedule a Meeting →