✓ Full backup (with Sungrow SH or SG series inverter)
Monitoring
iSolarCloud
Expandable
✓ 9.6kWh → 100kWh
💰 Pricing & system cost
🔋 This battery — Step 4 of system
~€9,800 supply price
For 25.6kWh. Commercial configurations from 9.6kWh to 100kWh — price on application for larger systems.
You also need before this battery
☀️ Solar panels (avg 10 × 430W)~€1,650
⚡ Compatible hybrid inverter~€950–1,800
🏗️ Installation + mounting + labour~€2,000
− €1,800 SEAI grant (solar components)savings
Key highlights
🏭
20kW discharge power — handles commercial loads
25.6kWh at 20kW discharge is enough to power a medium commercial premises through evening demand peaks — covering lighting, HVAC, refrigeration and production equipment without grid import after solar generation stops
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Scalable from 9.6kWh to 100kWh
Each 3.2kWh SBR module can be added individually — start with the minimum viable system and expand as your storage requirements grow, without replacing the inverter or battery cabinet
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Operating range -20 to +55°C — suitable for Irish agricultural environments
The SBR platform is rated for extreme operating temperatures — performing reliably in the cold, damp conditions of Irish farm buildings, unheated warehouses, and coastal sites
🚐 Electrify your fleet — overnight depot charging from your battery
Commercial battery storage and an electric fleet are the ideal pairing. Solar charges your battery during the day; your fleet charges overnight at your depot from stored energy. SEAI van grants of €7,600 per vehicle stack on top of your battery grant. See the full EV Vehicle Directory — 205+ vehicles including vans, trucks and buses.
🔋 Commercial battery + electric fleet — depot charging at near-zero cost
A commercial battery system stores daytime solar generation for overnight fleet charging. Vans charge from stored solar at your depot during off-hours — at near-zero fuel cost. SEAI offers €7,600 per vehicle in van grants, stackable on top of your battery and solar grants. Accelerated Capital Allowance applies to all three technologies in year one.
📊 Example depot: 50kWh commercial battery + 50kWp solar + 10 × electric vans = solar charges battery by day, battery charges fleet by night. Annual fleet fuel cost: near zero.
Featured electric commercial vehicles — SEAI grant eligible
The SBR256 25.6kWh Commercial Stack is compatible with the following inverters. Click any inverter to see full specifications, pricing and system cost estimates. See the Solar Inverter Directory to compare all 15 inverters available in Ireland.
⚠️ Ecosystem note: The SBR256 25.6kWh Commercial Stack is only compatible with Sungrow inverters. If you are considering a different inverter brand, please check the Battery Directory for a battery compatible with your inverter.
☀️ Compatible solar panels
The SBR256 25.6kWh Commercial Stack is compatible with all solar panel brands available in Ireland — any panel that works with your compatible inverter will work with this battery. See the Solar Panel Directory to compare all 13 panels with specifications, pricing and SEAI eligibility.
Compatibility is via the inverter - ensure your chosen inverter is compatible with both your panels and this battery. All panel links above go to their individual review page.
🔧 Complete your solar system
The SBR256 25.6kWh Commercial Stack is Step 4 - you need solar panels and a compatible inverter before it, and an energy management system after it to get the maximum return from every kWh.
💡 Commercial tip: LONGi Hi-MO 7 (580W) or JinkoSolar Tiger Neo (580W) are the most common panel choices for Irish commercial solar + storage systems. Fewer panels per kWp reduces mounting and labour cost at scale.
🧠 Energy Management Systems — get more from your battery
A battery stores your solar energy — an energy management system makes sure it's used at the right time. EMS devices can reduce grid import by an additional 10–25% beyond the battery alone by coordinating solar generation, battery charge/discharge, hot water heating and EV charging. See the full Smart Energy Directory for all EMS products available in Ireland.
💡 Why add an EMS to your battery system? Without an EMS, a battery charges and discharges on simple rules (charge during solar generation, discharge at night). An EMS adds smart scheduling — learning your consumption patterns, responding to time-of-use tariffs (e.g. Electricity Ireland Smart), and diverting surplus to hot water or EV charging before exporting to the grid.
🌡️ Pair with a heat pump — the night-rate combination
Commercial battery storage and a heat pump cut heating costs across premises of any size. Charge the battery on cheap night-rate electricity, run the heat pump from stored power during peak hours — and claim SEAI grants on both systems. Browse all heat pumps →
🔋 Battery + heat pump: the maths that make it compelling
🌙 Night-rate electricity
€0.10/kWh
Pinergy / Energia night
⚡ Heat pump COP
4.3×
4.3 kWh heat per 1 kWh electric
🔥 Effective heat cost
€0.023/kWh
vs gas ~€0.063/kWh
💰 SEAI heat pump grant
€12,500
max for fossil fuel switchers
At a SCOP of 4.3, every €1 of night-rate electricity stored in your battery produces €4.3 worth of heat from the heat pump. That makes battery-powered heat pump operation 3× cheaper per kWh of heat than a gas boiler at today's rates. Stack the SEAI battery grant with the up to €12,500 heat pump grant for maximum combined subsidy.
🔌 Pair with fleet EV chargers — charge your vehicles from stored solar
Commercial battery storage paired with fleet EV chargers is the most cost-effective way to run an electric fleet. Your solar charges the battery during the day; your fleet charges from stored energy overnight at solar rates.
🔌 Commercial battery + fleet charging: close the loop on solar
A commercial battery stores your daytime solar generation. Fleet chargers draw from that stored energy overnight — so your vans charge on solar you generated for free rather than expensive grid electricity. Dynamic load balancing ensures multiple charge points share your available supply without expensive grid upgrades.
The Sungrow SBR256 25.6kWh Commercial Stack is priced at approximately €9,800 for the 25.6kWh configuration. For 25.6kWh. Commercial configurations from 9.6kWh to 100kWh — price on application for larger systems. Installed cost varies by county, property type, and whether this is a new solar installation or a retrofit. The SEAI Solar PV Home Grant (up to €1,800) applies to solar panel components when installed at the same time — get 3 quotes from SEAI-registered installers for an accurate all-in system price.
For a typical Irish home with €0.33/kWh electricity and a 4kWp solar system, the Sungrow SBR256 25.6kWh Commercial Stack (25.6kWh usable) shifts approximately 7,008 kWh/year from grid import to self-consumed solar — saving around €2,467/year. At €9,800, the estimated battery-only payback is ~4.0 years. An energy management system (EMS) can improve self-consumption by a further 10–25%, shortening the payback period.
The Sungrow SBR256 25.6kWh Commercial Stack carries a 10-year warranty that guarantees at least 70% of the original capacity remains after 10 years of normal use — the standard industry capacity retention guarantee. The warranty covers manufacturing defects and capacity degradation below the 70% threshold. Annual cycling beyond the rated 6,000 cycles, physical damage or installation errors are not covered. Always register the battery with Sungrow at installation to activate the warranty.
LFP (Lithium Iron Phosphate) is now the dominant battery chemistry for Irish residential and commercial solar storage for good reasons. It is the safest chemistry — LFP cells have an extremely low thermal runaway risk compared to older NMC or NCA chemistries. It has a longer cycle life — the Sungrow SBR256 25.6kWh Commercial Stack is rated for 6,000 cycles, equivalent to 16 years of daily cycling. LFP tolerates Ireland's variable temperatures better than NMC, and it handles deep daily discharge without the capacity fade that affects other chemistries. For Irish homeowners cycling the battery every day, LFP is the right choice.
Yes — the Sungrow SBR256 25.6kWh Commercial Stack provides Full backup (with Sungrow SH or SG series inverter). When the grid goes down, the system automatically switches to battery-backed island mode, keeping your household circuits live. Switchover time is typically under 20ms — fast enough that most equipment, including computers, does not notice the transition. Backup is managed through the iSolarCloud. Note: backup capability requires the system to have been correctly configured for island mode at installation — confirm this with your installer.
No — the Sungrow SBR256 25.6kWh Commercial Stack uses proprietary communication protocols and is only compatible with Sungrow inverters. It cannot be used with Huawei, Fronius, Solis, GoodWe or SolarEdge inverters. If you do not have or plan to install a Sungrow inverter, see the Battery Directory to find a battery compatible with your inverter. Multi-inverter batteries like the Pylontech US3000C (Solis, Sungrow, GoodWe, SMA) or BYD Battery-Box (Fronius, SolarEdge, SMA) offer more flexibility.
Yes — the Sungrow SBR256 25.6kWh Commercial Stack is modular and expandable from 9.6kWh to 100kWh in 9.6kWh increments, without replacing the inverter or rewiring the solar system. This is a significant advantage for homeowners who want to start with a smaller capacity and expand as their budget allows or as electricity prices change. Your installer can add modules at any point after initial installation — though it's worth having the mounting and wiring provisioned for expansion at the original installation to reduce future labour costs.
Commercial installations using the Sungrow SBR256 25.6kWh Commercial Stack may qualify for several support schemes: the SEAI Non-Domestic Microgen grant (confirm current battery-specific eligibility at seai.ie); TAMS III providing up to 60% grant aid for qualifying agricultural buildings with solar and storage; and Accelerated Capital Allowance (ACA) through Revenue allowing the full equipment cost to be written off against tax in year one. For a 25.6kWh system at ~€9,800, the ACA alone could reduce the effective cost by €1,225–€2,450 in year one for a profitable business. Always verify current eligibility at seai.ie and revenue.ie before proceeding.
The Sungrow SBR256 25.6kWh Commercial Stack is rated for 6,000 charge/discharge cycles. At one full cycle per day — typical for a solar-charged battery in Ireland — this represents approximately 16 years of daily cycling before reaching end-of-life capacity (defined as capacity dropping below 70% of original). Most Irish homeowners cycle batteries to 60–80% depth per day rather than 100%, which extends effective lifespan further. The 10-year warranty provides protection during the early years. Budget for potential replacement at year 15–20 when modelling long-term system financials.
SEAI Non-Domestic Microgen grant — covers commercial solar PV installations including battery storage as part of a new system. TAMS III — for qualifying agricultural buildings, up to 60% grant on solar and storage combined. Accelerated Capital Allowance (ACA) via Revenue — allows the full capital cost of solar and storage equipment to be written off against corporation tax in year one. Check current eligibility and grant levels at seai.ie and revenue.ie before proceeding. Larger ESS projects above 100kWh may also qualify for enterprise support through Enterprise Ireland.
📲 Manage parking & charging
Download De Energy Hub app
Manage parking and EV charging across your commercial sites, or list your own spaces and chargers as bookable Hubs. Get De Energy Hub free on the App Store or Google Play.
📲 Get De Energy Hub app
Download De Energy Hub to manage parking and EV charging bookings across your sites, or list your own spaces and chargers as bookable Hubs.
Free to download. Manage parking and charging bookings and list your Hubs, all from your phone.
De Energy Hub
More power to you®.
🌾 Built for farms, agri businesses & rural operators
Your solar + battery installation is also a charging asset — list it
Agricultural businesses installing solar and battery storage can immediately list their EV charger as a Pure Energy Charging Hub — powered by your own stored solar generation. Rural EV charging infrastructure is in high demand. Self and guest bookings available — book charging sessions for contractors and visitors before they arrive, notify them automatically.
☀️ Pure Energy🔄 Smart Energy🚀 Boost Energy
☀️
Pure Energy from your battery
Tag your charger as Pure Energy — drivers see it runs on 100% stored renewable generation from your farm
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Guest & self-booking
Book sessions for contractors or visitors who don't have the app — they're notified and guided through check-in
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Photo check-in
Customers upload a photo on check-in or check-out — added accountability for shared rural infrastructure
