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— LARGE COMMERCIAL & UTILITY SCALE

Industrial Storage.
Utility-Scale Solar.

SigenStack delivers 150 kW to 3 MW of commercial energy storage. The Sigen PV 500H1 is a 506 kW string inverter built for ground-mount solar farms — now available in South Africa through Ample Power.

3 MW
SigenStack max
506 kW
Per utility inverter
5.56 MW
Per inverter block
18 MPPT
Anti-mismatch design

BATTERY ENERGY STORAGE · 150 kW to 3 MW

SigenStack at Scale

For large factories, shopping centres, industrial parks and commercial campuses, SigenStack delivers scalable BESS from 150 kW upwards. Each 12 kWh LFP battery module stacks with C&I hybrid inverters — containerised or rack-mounted — for multi-MW deployments with a 10,000-cycle life guarantee.

  • ✓Peak demand shaving — eliminate Eskom maximum demand (MD) charges on large LV/MV accounts
  • ✓TOU arbitrage — charge from cheap off-peak power, discharge at peak-rate times
  • ✓Grid independence — load-shed immunity for critical manufacturing and cold-chain processes
  • ✓VPP-ready — future dispatch capability through Sigen Cloud platform
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SigenStack Large Commercial
SigenStack Battery Module
Energy: 12.06 kWh
Chemistry: LFP
Voltage: 600 V nominal
Cycles: 10,000+
Protection: IP66
Warranty: 10 years
Grid-Tie Only Medium Voltage (MV) Three Phase No battery built-in — pairs with a separate BESS PCS for energy storage.
NEW — LAUNCHED APRIL 2026

UTILITY-SCALE PV STRING INVERTER

Sigen PV 500H1
506 kW

Sigenergy's flagship utility-scale string inverter breaks through conventional power limits with next-generation Silicon Carbide (SiC) MOSFET technology. At 506 kW per unit with 1000 V AC output and 18 independent MPPT channels, it delivers superior yield on large ground-mount solar farms while cutting balance-of-system costs by up to 48%.

506 kW
Max AC output per unit
18 MPPT
Independent string trackers
1000 V
AC output (vs. 800V std.)
+1.5–2%
Annual yield uplift
ENQUIRE NOW →
Sigen PV 500H1 506kW inverter at utility solar tracker farm

Why SiC Technology Changes the Game

Higher Yield
18 independent MPPT channels mitigate panel mismatch and shading, lifting annual energy output by 1.5–2% versus conventional string inverters.
Lower BOS Cost
1000 V AC output reduces current and cable cross-sections at block level — cutting balance-of-system cost by ~48% versus a 3 MW block of 300 kW inverters.
Smart O&M
MPPT-level insulation fault positioning is 15× faster than conventional methods. Geo-tagged app check-in and mySigen Cloud remote monitoring reduce site visits.
Sigen PV 500H1 MPPT string connector panel detail

MPPT string connector panel — 506kW DC input capacity

Engineering Large-Scale Solar for South Africa

Ample Power is a registered Sigenergy partner. We handle feasibility studies, full EPC, grid applications, finance and long-term O&M for utility and large C&I projects.

Compare all SigenEnergy products →