Acrel Anti-Reverse Power Flow Solution for Factory PV Plants – Avoid Grid Penalties from Excess Power Feedback
16 Jul 2026
Against the backdrop of carbon neutrality goals, numerous industrial factories have deployed distributed photovoltaic systems to cut power costs via self-consumption. However, most plant operators face a critical headache: midday peak solar generation often far exceeds on-site load demand. Surplus electricity flows backward into the public utility grid, triggering strict grid authority penalties, metering disputes, or even forced PV shutdowns that wipe out energy savings. To resolve this widespread industry pain point, Acrel has launched an integrated anti-reverse power flow solution combining smart monitoring, real-time power regulation and grid protection, equipped with professional energy meter and protection relay hardware.
Our system adopts a dual safety framework: flexible power regulation paired with hard trip protection relay, forming two layers of safeguards to eliminate reverse current risk.
1. Flexible power tuning: High-precision energy meter collects real-time voltage, current and power data at the grid connection point, communicating with solar inverters to dynamically lower PV output. This matches generation to factory load to maximize on-site self-consumption, curtail light curtailment losses and retain full solar economic benefits.
- 2. Hard trip backup protection: If sudden load drops cause excessive reverse power flow beyond limits, the dedicated anti-reverse protection relay immediately cuts off the PV grid tie point within 2 seconds. It fully complies with GB/T 50865 grid connection standards, mandating power reduction or circuit breaking once reverse current exceeds 5% of rated output, ensuring full grid compliance.
Our complete product portfolio covers all high & low voltage classes for diverse factory PV projects:
·380V low-voltage rooftop PV: Standalone AM2SE-Z anti-reverse protection relay with built-in energy meter
- · 10kV medium & large industrial solar stations: AM3-Z series protection device
-
· 35kV large-scale industrial park PV systems: AM5SE-IS high voltage monitoring relay
For multi-building, long-distance distributed PV layouts, the AM5SE-PV master-slave series delivers stable master-slave communication for coordinated multi-point monitoring, compatible with both short and long wiring distances.
-
Integrating high-performance energy meter and intelligent protection relay, the Acrel anti-reverse power flow solution eliminates fines and shutdown risks caused by reverse grid power feedback. It maximizes usable solar generation to slash factory electricity bills, acting as a reliable grid-compliant protective package for all industrial distributed photovoltaic grid-tie projects.
Next:
None News