Hoymiles HoyUltra All-in-One Battery System is an LFP battery energy storage system for commercial and industrial use, supplied as an AC block with 215 kWh nominal energy and 100 kW rated DC power. It provides 86% AC round-trip efficiency, uses 280 Ah prismatic cells, offers liquid or air cooling, and weighs 2.3 tonnes (5,071 lb).
Use Cases
Use behind the meter is consistent with the specifications of Hoymiles HoyUltra All-in-One Battery System. It falls within the commercial and industrial class by energy capacity. It connects at 380 V, a low-voltage AC connection, and is certified to low-voltage grid connection rules (EN 50549-1, CEI 0-21, NRS 097-2-1, VDE-AR-N 4105).
Capabilities
A 0.5C rating makes Hoymiles HoyUltra All-in-One Battery System a candidate for peak shaving, reducing the peak load at the connection point. About 2.15 h of storage at full power, calculated from 215 kWh and 100 kW, points to capacity value, standing in as firm capacity when demand peaks. Its AC block includes the inverter, which suggests renewable colocation, operating alongside a wind or solar plant on one site.
Nominal energy
0.22MWh
Rated AC power
0.1MW
Rated DC power
0.1MW
C / P rate
0.5C
Round-trip efficiency (AC)
86 %AC
What does this system typically cost?
BESSBASE.com user price estimates for HoyUltra All-in-One Battery System by Hoymiles and similar storage systems. The ranges are LDP (Landed Duty Paid) prices per kWh that cover all expenses of delivering the goods to the buyer's premises, including production, shipping, sales margins, and import duties.
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Energy & Power
Architecture
DC Side
AC Side
Physical & Footprint
Battery Cells
Lifespan
Protection
Full Specification Sheet
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Plant Round-Trip Efficiency
The calculator estimates the full "plant" round-trip efficiency (RTE) at the point of interconnection. Some values are pre-blocked depending on information on a particular ESS. The rows that are marked "each way" are one-way efficiencies; they are applied on charge and again on discharge. We then square them. To enter a bundled PCS efficiency value, use its rated-power value, not peak. If the PCS skid already includes the LV/MV transformer, set Transformer LV/MV to 100 % so those losses are not counted twice.
Site Space Required
Shared: one 3 m aisle serves both neighbours. Dedicated: each unit keeps its own 3 m, so gaps double to 6 m.
Single unit — matches the stored area_sqm convention.
More Hoymiles Systems
5| Compare | Logo | Vendor | System | Energy | Power | Duration | Battery Cell | Open |
|---|---|---|---|---|---|---|---|---|
| Hoymiles | HoyPrime 5MW/10MWhAC Block | 10MWh | 5MWAC | 2h0.5C | LFP | |||
| Hoymiles | HoyPrime 1MW/2MWh Containerized Battery Energy Storage SystemAC Block · 20 ft container | 2.06MWh | 1MWAC | 2h0.5C | LFP | |||
| Hoymiles | HoyCore Outdoor Battery SystemDC Block · cabinet | 0.34MWh | — | —0.5C | LFP280 Ah · Prismatic | |||
| Hoymiles | HoyUltra 2 Series HESS-261-2hAC Block · cabinet | 0.26MWh | 0.13MWAC | 2h0.5C | LFP314 Ah · Prismatic | |||
| Hoymiles | HoyUltra All-in-One Battery SystemAC Block · cabinet | 0.22MWh | 0.1MWAC | —0.5C | LFP280 Ah · Prismatic |
About the Vendor
Founded in 2012 and based in Hangzhou, Hoymiles started as a Chinese microinverter maker and later expanded into energy storage systems. Its BESS line includes the HiOne home system, which combines the inverter, battery, and EMS and scales to 64 kWh, and the HoyUltra 2 liquid-cooled system for larger uses; in 2026, Hoymiles signed agreements with more than 10 Middle Eastern partners.
How to Read the Product Page
This profile of HoyUltra All-in-One Battery System by Hoymiles is assembled exclusively from public data to support early-stage screening and requires additional due diligence.
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