Solar + inverter + EV charger + this battery + install
~€9,800
− €1,800 SEAI grant~€8,000 net
🧠 Step 5 — Smart Energy adds ~€150–400
Maximise every kWh
EMS coordinates solar, battery and loads — extra 10–25% self-consumption and smarter time-of-use scheduling.
Estimates based on a 4kWp system (10 × 430W panels + avg hybrid inverter + Type 2 EV charger + this battery). SEAI grant covers solar components only — apply at seai.ie before installation.
BYD · Residential Battery · Ireland 2026
BYD Battery-Box Premium HVS 10.2kWh — Ireland 2026
High-voltage LFP — compatible with Fronius, SolarEdge and SMA
Homeowners installing Fronius, SolarEdge or SMA inverters who want high-voltage LFP storage
10.2kWh5kW output10-yr warranty6,000 cyclesIP55LFP⚡ Backup power📦 ModularWall mount
⚙️ Technical Specifications
Battery chemistry
LFP (Lithium Iron Phosphate)
Capacity
10.2kWh
Usable capacity
10.2kWh
Continuous power
5kW
Round-trip efficiency
97%
Cycle life
6,000 cycles
Warranty
10 years (70% capacity)
IP rating
IP55
Install type
indoor-outdoor
Wall mount
✓ Yes
Backup power
✓ Full backup (with compatible inverter)
Monitoring
BYD Battery-View App
Expandable
✓ 3.4kWh → 23.1kWh
💰 Pricing & system cost
🔋 This battery — Step 4 of system
~€4,500 supply price
For 10.2kWh (3 × 3.4kWh modules). 3.4kWh starter module ~€1,600.
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
⚡
High-voltage architecture — pairs with Fronius and SolarEdge
BYD HVS uses 100–400V DC architecture that pairs natively with Fronius GEN24 Plus and SolarEdge Home Hub — both of which require a high-voltage battery. The natural storage choice for these premium inverters
🔋
World's largest LFP battery manufacturer
BYD manufactures more LFP battery cells than any company in the world — scale that translates to cost stability, supply reliability, and confidence in long-term parts availability
🌧️
IP55 — suitable for covered outdoor locations
Unlike indoor-only competitors, the HVS can be mounted in a covered outdoor location — a utility garage exterior, shed wall, or sheltered porch — freeing up indoor space
🚗 Pair with an electric car — charge from stored solar
A home battery and an EV are the most powerful combination for Irish homeowners. Your battery stores surplus solar during the day — your EV charges from it overnight at near-zero cost. A 10kWh battery fully charges most EVs from stored solar alone. See the full EV Vehicle Directory — 205+ electric vehicles available in Ireland.
🔋 How your battery makes an EV even cheaper to run
🌙 Night-rate charge
€0.10/kWh
Pinergy / Energia night
🚗 Cost per 100km
~€1.50
average EV efficiency
vs petrol (€1.80/L)
~€14/100km
petrol equivalent cost
A home battery lets you load up on cheap off-peak electricity overnight, then charge your EV from stored power during the day — all at the night rate. Combined with a solar system, your EV can charge for near-zero cost from stored surplus solar. The myenergi Zappi Eco+ mode charges only from surplus solar before drawing from the battery.
View myenergi Zappi →
Featured electric cars — most popular in Ireland 2026
High-voltage LFP — the required battery for Fronius GEN24 Plus and SolarEdge Home Hub
IP55 — suitable for covered outdoor or indoor wall mounting
10-year warranty · 97% round-trip efficiency
Full backup capability with compatible inverter
World's largest LFP manufacturer — supply chain stability and brand confidence
Modular — expandable from 3.4kWh to 23.1kWh
⚠️ Worth knowing
Premium price vs Pylontech at equivalent usable capacity
Limited inverter compatibility vs Pylontech — Fronius, SolarEdge, SMA, Sungrow, GoodWe only
High-voltage system requires installer with HV battery training
📊 Battery ROI — estimated payback for Irish homes
Estimated annual savings and payback period for the BYD Battery-Box Premium HVS 10.2kWh at ~€4,500. Based on electricity rate of €0.33–0.35/kWh (mid-range Irish residential 2026). Assumes battery shifts solar-generated electricity from daytime export to evening self-consumption.
Household type
Evening import
Est. kWh saved
Annual saving
Payback
Low usage (single/couple)
3,000 kWh/yr
~2,550 kWh/yr
~€842/yr
~5.3 yrs
Average home (family of 4)
4,500 kWh/yr
~3,723 kWh/yr
~€1,229/yr
~3.7 yrs
Higher usage (5+ / EV / heat pump)
6,000 kWh/yr
~3,723 kWh/yr
~€1,303/yr
~3.5 yrs
Indicative only. Actual savings depend on electricity tariff, panel system size, usage profile, and seasonal generation. An energy management system (EMS) can improve self-consumption by a further 10–25%. Get a site-specific financial model from your installer.
⚡ Compatible inverters
The Battery-Box Premium HVS 10.2kWh 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.
✅ Multi-inverter compatible: The Battery-Box Premium HVS 10.2kWh works with Fronius, SolarEdge, SMA, Sungrow, GoodWe inverters — giving you flexibility to choose the best inverter for your system without being locked into a single ecosystem.
☀️ Compatible solar panels
The Battery-Box Premium HVS 10.2kWh 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 Battery-Box Premium HVS 10.2kWh 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.
💡 Most popular Irish combination in 2026: LONGi Hi-MO 6 panels + compatible hybrid inverter + BYD Battery-Box Premium HVS 10.2kWh — installed by a SEAI-registered contractor, managed by a smart energy controller.
🧠 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
A solar battery and a heat pump are the most powerful combination for cutting your heating bill. Your battery charges overnight at the cheap night rate — then your heat pump runs from stored electricity during the day, delivering heat at a fraction of the cost of gas or oil. Browse all 18 heat pumps →
🔋 Battery + heat pump: the maths that make it compelling
🌙 Night-rate electricity
€0.10/kWh
Pinergy / Energia night
⚡ Heat pump COP
4.5×
4.5 kWh heat per 1 kWh electric
🔥 Effective heat cost
€0.022/kWh
vs gas ~€0.063/kWh
💰 SEAI heat pump grant
€12,500
max for fossil fuel switchers
At a SCOP of 4.5, every €1 of night-rate electricity stored in your battery produces €4.5 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.
Popular heat pumps in Ireland 2026 — SEAI grant eligible
🔌 Pair with an EV charger — charge your car from stored solar
A home battery and an EV charger complete your home energy system. Store surplus solar in your battery, then draw it back through a smart charger to power your car — maximising self-consumption and cutting your fuel bill to near zero.
🔌 Battery + EV charger: the perfect home energy pair
Your battery stores surplus solar during the day. A smart solar-compatible charger like the myenergi Zappi draws from your battery first — so your car charges on energy you generated for free. At night, the battery tops up on cheap off-peak rates (as low as €0.10/kWh) for the next day's driving. SEAI Home Charger Grant: €300 applies to eligible wallbox installations.
The BYD Battery-Box Premium HVS 10.2kWh is priced at approximately €4,500 for the 10.2kWh configuration. For 10.2kWh (3 × 3.4kWh modules). 3.4kWh starter module ~€1,600. 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 BYD Battery-Box Premium HVS 10.2kWh (10.2kWh usable) shifts approximately 2,792 kWh/year from grid import to self-consumed solar — saving around €983/year. At €4,500, the estimated battery-only payback is ~4.6 years. An energy management system (EMS) can improve self-consumption by a further 10–25%, shortening the payback period.
The BYD Battery-Box Premium HVS 10.2kWh 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 BYD 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 BYD Battery-Box Premium HVS 10.2kWh 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 BYD Battery-Box Premium HVS 10.2kWh provides Full backup (with compatible 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 BYD Battery-View App. Note: backup capability requires the system to have been correctly configured for island mode at installation — confirm this with your installer.
The BYD Battery-Box Premium HVS 10.2kWh is compatible with Fronius, SolarEdge, SMA, Sungrow, GoodWe inverters — giving you the flexibility to choose the best inverter for your system without being locked into a single ecosystem. This is one of the widest inverter compatibility ranges available for a residential battery in Ireland.
Yes — the BYD Battery-Box Premium HVS 10.2kWh is modular and expandable from 3.4kWh to 23.1kWh in 3kWh 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.
Not directly. The SEAI Solar PV Home Grant of up to €1,800 applies to the total installed cost of the solar PV system — panels, inverter, mounting hardware, cabling and labour. It does not cover battery storage as a standalone item. However, if battery storage is installed as part of a new solar system at the same time, the grant still applies to the solar components, and the overall system cost (including battery) is reduced by €1,800. Some homeowners maximise their panel and inverter specification under the grant, then use the savings to partially offset the battery cost. Always apply to SEAI and receive a Letter of Offer before installation begins.
The BYD Battery-Box Premium HVS 10.2kWh 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.
No — the Huawei SUN2000 hybrid inverter requires the Huawei Luna2000 battery exclusively. The BYD Battery-Box Premium HVS is compatible with Fronius GEN24 Plus, SolarEdge Home Hub, SMA Sunny Boy Storage, Sungrow SH series, and GoodWe ET Plus. If your inverter is from Huawei, specify the Luna2000 instead.
High-voltage battery architecture (100–400V DC) allows direct DC coupling to high-voltage hybrid inverters like the Fronius GEN24 Plus and SolarEdge Home Hub — which require a high-voltage battery on the DC bus. This architecture reduces conversion losses compared to low-voltage batteries that must be converted up before use. The trade-off: high-voltage battery installation requires an installer with HVPV/HV battery competency certification. Most Irish Fronius and SolarEdge accredited installers are already qualified.
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More power to youTM.
🛒 Built for retail parks, offices & business premises
List your car park chargers as bookable assets — earn while you work
Your solar-and-battery-powered car park chargers can become a bookable revenue stream. EV drivers find your chargers in the app, see your energy rate — Pure Energy from stored solar — and book in advance. Automated check-in, check-out and notifications handle everything. Filter by charger type so Type 2, CCS, CHAdeMO and EHU spaces are always matched correctly.
☀️ Pure Energy🔄 Smart Energy🚀 Boost Energy
🅿️
QR code per bay
One unique QR code per charger or space — guests scan to book, check in and check out
🔋
Charger type filtering
Type 2, CCS, CHAdeMO, Type 1 and EHU — drivers filter to chargers that fit their vehicle
🔔
Check-in & check-out alerts
Automated notifications at session start and end — maximise charger utilisation across the day
