Energidea
Hoymiles Hoymiles HoyUltra 2 HESS-261-2h

Hoymiles

Series: HoyUltra Series

Hoymiles HoyUltra 2 HESS-261-2h

Three-phase integrated bess inverter all-in-one system with 261 kWh LFP battery

Partially verified

Best for

  • + Commercial & industrial installations
  • + Three-phase installations
  • + Medium commercial & industrial (50-200 kWp)
  • + LFP battery applications - verify cycle life from datasheet

Not ideal for

  • ! Typical single-family residential - consider residential product line
  • ! Single-phase installations (unless manufacturer confirms support)
  • ! Small commercial applications (< 30 kWp) - consider smaller product
  • ! Backup/battery-backup projects (no EPS functionality)
  • ! Long-lifecycle projects (<=1 years standard warranty)

In the HoyUltra Series series

This is the 261 kWh variant.

Compared to other models

  • - 21% larger capacity than Hoymiles HoyUltra 100kW/215kWh
  • - Maximum capacity option in this series.

Ideal for

Ideal for projects that prioritize maximum stored energy in the series while keeping 125 kW as the design reference.

Key Specifications

Rated Output Power

125 kW

Vendor

Usable Capacity

261 kWh

Vendor
Show All Specifications

Kernwerte

AC-Nennleistung125 kWVendor
AC-Spannung400Vendor
Energie (Nominal)261 kWhVendor
Energie (Nutzbar)261 kWhVendor
C-Rate-
Spitzenleistung137.5 kWVendor
BatteriechemieLFPVendor
DC-Spannungsbereich728 - 936 VVendor
System-Rundlaufwirkungsgrad90.3 %Vendor
Geraeusch70 dB(A)Vendor

EMS & Kommunikation

EMS enthaltentrueVendor
ProtokolleModbus RTU, Modbus TCP, DL/T645Vendor
EMS-FunktionenRefined cloud-to-edge operation, Tariff management, Automated dispatchVendor
Remote-WartungtrueVendor
FehlerdiagnosetrueVendor
Details NetzstuetzfunktionenPQ, VF, Black Start supportVendor
Datenlogging-Intervall-
Reaktionszeit100 msVendor

Umgebung & Mechanik

ThermomanagementLiquidVendor
LöschanlageNOVEC1230 + PACK-level + WaterVendor
DetektorenEarly warning cloud alerts, Smoke/Gas detectionVendor
WartungszugangModular O&M (<2h module swap)Vendor
Druckentlastung-
Thermal-Runaway-MinderungAdvanced liquid cooling (PCS + Battery), no derating at 50CVendor
HebepunkteIntegratedVendor
Serviceintervall-
IP-SchutzartIP55Vendor
KorrosionsklasseC5Vendor
Betriebstemperatur-30 to 55Vendor
Abmessungen (B x H x T)1030 x 1400 x 2450 mmVendor
Gewicht2700 kgVendor

Konformitaet & Garantie

ZertifizierungenIP55, C5, ISO 3744 Noise CertificationVendor
Batterie-ZertifizierungenLFP 314Ah CellsVendor
System-ZertifizierungenCEVendor
LVRT/HVRTtrueVendor
Garantie-Durchsatz / Zyklen-

Data Confidence & Verification

Partially verified

Data Sources

  • + Official datasheet - verified 2026-04-17
  • - Installation Manual - not available
  • - Certificate - not available

Data gaps that may affect your decision

  • ! Outdoor temperature range not specified - confirm outdoor suitability.
  • ! IP rating not documented - confirm installation location suitability.

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Compliance & Certifications

No compliance data available for this product.

Certifications

-

Documents & Downloads

DATASHEET PDF

  • Hoymiles HoyUltra 2 HESS-261-2h DatasheetDownload
Compatible Products - coming in Phase 3

Product data is sourced from manufacturers, official websites, and community contributions. Energidea does not guarantee completeness or accuracy. Installers should verify specifications, certifications, and compatibility with manufacturer documentation before quotation.

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Typische Systemkonfiguration

Grid-Tied Parallel Scaling

Large industrial parks requiring megawatt-scale storage.

Netztyp: 3-Phase On-Grid

Geeignet fuer: Large scale industrial projects up to 2 MW / 4.1 MWh.

Hauptkomponenten

Up to 16x HoyUltra 2 units in parallel.

Hinweise

Zero-oscillation parallel operation.

Haftungsausschluss: For reference only. Final system configuration should be confirmed based on local regulations, grid requirements, and project conditions.

Off-Grid Microgrid

Remote sites or critical facilities requiring VF and Black Start.

Netztyp: 3-Phase Off-Grid

Geeignet fuer: Data centers, remote hospitals, island grids.

Hauptkomponenten

Up to 8x HoyUltra 2 units in parallel.

Hinweise

Seamless transfer feature ensures uninterrupted power.

Haftungsausschluss: For reference only. Final system configuration should be confirmed based on local regulations, grid requirements, and project conditions.

VPP / Energy Trading

Aggregated storage participating in frequency response or arbitrage.

Netztyp: 3-Phase Hybrid

Geeignet fuer: Aggregators and utility-scale service providers.

Hauptkomponenten

HoyUltra 2, Third-party Cloud/VPP interface.

Hinweise

EMS supports seamless third-party cloud integration.

Haftungsausschluss: For reference only. Final system configuration should be confirmed based on local regulations, grid requirements, and project conditions.

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