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Dec 24, 2020

Renewable Energy Stations Wind/Solar Farms (35kV–220kV)​​
Key Focus: High overload capacity, low losses, harmonic resilience.
​Solutions:Smart OLTC Transformers: AI-driven voltage regulation for grid fluctuations.
​Short-Circuit Resilience: Axially reinforced windings tested for 25kA asymmetrical faults.
​Eco-Friendly Oils: Bio-based ester fluids (biodegradability >90%, IEC 61869 compliant).
​Offshore Wind (High Salinity, Humidity)​​
Key Focus:Corrosion resistance, compactness, minimal maintenance.
​Solutions:Hermetic Oil-Immersed Transformers: Double-shell design with SF6 gas or dry air filling.

​ Compact Gas-Insulated Transformers (GIS)​:
SF6-insulated units with 50% volume reduction for offshore platforms.On one hand, Suzhou is steadily
increasing the proportion of clean energy generation, while on the other hand, it is intensively exploring deeper potential for electricity substitution.
The infusion of clean energy has deepened Suzhou's energy transition, and its energy development trajectory exemplifies the accelerated ​
re-electrification​ process led by the company.Since the 21st century, countries worldwide have accelerated energy transitions to address
climate change, protect ecosystems, and ensure energy security.

The ​Paris Agreement​ (2015) has provided new momentum for this transformation.
At its core, this energy transition represents a ​re-electrification​ process:
• Production side: Electricity increasingly derives from non-fossil sources, ultimately transitioning to renewables-dominated generation.
• Consumption side: Electricity expands into unprecedented applications, becoming the backbone of modern information societies and digital
economies.

Suzhou's advancements mirror this global shift.
The city's integration of distributed photovoltaics, wind farms, and advanced grid technologies—such as the ​Dongwu Ultra-High Voltage
AC/DC Substation​ (the world's first interconnection hub for hybrid AC/DC systems)—has positioned it as a model for clean energy adoption.
By 2025, Suzhou aims to derive 50% of its electricity from non-fossil sources, driven by innovations like regional energy stations and smart microgrids 
This dual focus on clean energy generation and electricity substitution underscores Suzhou's role as a living laboratory for ​re-electrification,
showcasing how cities can harmonize sustainability with industrial growth.


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