C&I cabinet ESS
215–261 kWh all-in-one and DC cabinets, scalable in parallel for larger sites.
Solution
Energy Arbitrage & Trading
Charge batteries when prices are low and discharge when they peak, capturing day-ahead and intraday price spreads.
The challenge
Turning price volatility into revenue
Volatile day-ahead and intraday markets reward storage that can buy energy cheaply and sell or self-consume it when prices peak.
- Midday solar and off-peak hours push wholesale prices low, while evening peaks are expensive — a spread storage can capture.
- Exporting PV at low feed-in tariffs leaves money on the table versus time-shifting it to high-price hours.
- A bankable trading case needs high round-trip efficiency, cycle life and a system that can charge and discharge daily for years.
How it works
How arbitrage works
The EMS follows price signals to charge low and discharge high, with optional dynamic-tariff automation.
- 01
Price signal
The EMS reads day-ahead / intraday prices (or a dynamic tariff) and builds a charge/discharge schedule.
- 02
Charge low
The battery charges from cheap grid power or surplus PV during low-price windows.
- 03
Discharge high
Stored energy is discharged to the site or grid when prices peak, up to 6 daily charge/discharge windows.
- 04
Repeat daily
314 Ah LFP cells rated for 8,000+ cycles sustain daily cycling across the project life.
Outcomes
System specifications
8,000+ battery cycles
6 daily charge/discharge windows
99% PCS round-trip efficiency
Product specifications are indicative for the Hithium 261 kWh C&I storage class. Project outcomes such as payback, self-consumption and demand-charge reduction depend on your site load profile, tariff and system sizing, and are confirmed in the project quote.
Sunket Supply scope
What Sunket Supply supplies
EMS & price automation
Energy management that schedules cycling against day-ahead / intraday prices and dynamic tariffs.
Project support
AC- or DC-coupling design, grid-code compliance and commissioning and after-sales support.
FAQ
Frequently asked
Can the system trade on the day-ahead and intraday markets?
Yes. The EMS can charge and discharge against price signals or a dynamic tariff, with up to 6 charge/discharge windows per day. Market access itself is arranged through your energy supplier or aggregator.
Is arbitrage compatible with PV self-consumption?
Yes. The same system can prioritise self-consumption and use spare capacity for arbitrage, configured per site.
What payback can we expect?
Payback depends on your market, price spread, tariff and cycling. We run a site-specific ROI calculation from your data before quoting.
Request a project-specific quote
Share your site profile and Sunket Supply returns a tailored quote from European stock — typically within 1–2 business days.