Benefits to Meet Your Needs

  • Up to 30% More Energy with Optimizers
  • Flexible investment & more usable energy via smart string ESS with energy optimizer
  • 2x POWER Battery Ready for More Energy
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Up to 30%

More Energy with Optimizers

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  • Different Azimuth
  • Different Tilt

Without optimizer

All modules’ performance is limited by the weakest one

  • 85%
  • 90%
  • 90%
  • 90%

With optimizer

Each module can achieve its best performance for higher yields.

  • 85%
  •  100%
  • 100%
  • 100%
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Smart String ESS

with Energy Optimizer

A string of battery modules for flexible expansion
Energy optimizer to manage charge/discharge per module independently, supports new and old battery module mixed in one system without usable energy restriction

2x POWER Battery Ready

For More Energy

A 5KTL inverter allows 5KW full power AC 
output plus 5KW full power battery charge

More Daytime Consumption
Inverter output full power for daytime energy consumption
More Nighttime Consumption
Inverter chargers ESS at full power for more nighttime energy consumption

AI Powered

Active Arcing Protection

Self-learning new arc features with AI model
Accurate arc fault detection
via local neural network algorithm
Speedy arc fault protection by inverter shutdown in 0.5s
  • AI-powered active arcing protection
  • Pinpoint arc fault positioning for easier troubleshooting
  • No worry about power outage with backup power


Arc Fault Positioning for Easier Troubleshooting

80% less onsite troubleshooting time and lower cost with arc fault location pinpointing
Less power loss because of shorter system tripping
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No Worry About Power Outage

With Backup Power

System switches to backup mode to supply emergent power to critical load automatically when power outage
Smart string ESS supports black start from blackout to restore system operating
  • One-Fits-All solution,easier business
  • Module auto-mapping within 5s
  • Auto datection of all system components

Digital Turbo-
Leading Technologies Bring Better Experience

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Solution,Easier Business

One optimizer fits most poly & mono PV module
One App to set up all system components
One ESS fits both single & three phase residential inverters
One inverter fits both on grid and backup operating (via backup box).
One Supplier window for all system components pre-sales training & after sales service.

< 1.5 min

Optimizer Pairing

Note: 1.5 min for a 10 kW system


< 5s

Module Auto-Mapping

Physical View
<5 s
15 min

Note: < 5s for a 10 kW system

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Auto Detection

of All System Devices

All inverter connected devices can be automatically detected in FusionSolar app

  HUAWEI Solution
Other Solution
System Setting
up Duration
1.5-3mins 15-20 mins
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No Quick-wear Parts, Inverter Touch Free

TÜV verified: annual failure rate < 0.5%
High inverter availability up to 99.996%

Smart Energy Controller



Smart Energy Controller


Storage System

Smart String Energy Storage System


Smart PV Optimiser


Smart Dongle

Smart Dongle WLAN-FE/4G


Smart Power Sensor

DDSU666-H/DTSU666-H 100A/DTSU666-H 250A

Management System

FusionSolar Smart PV Management System

Backup Box

Backup Box-B0/B1


Support & Contact