Project Overview
Project Type: Urban Power Distribution & Renewable Integration
Completion Date: July 2024
Location: Athens Metropolitan Area, Greece
Key Partners: Hellenic Electricity Distribution Network Operator (HEDNO), Local EPC Firms
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Technical Solution
TSTYNICE supplied 33/0.4 kV oil-immersed distribution transformers and compact prefabricated substations for city grid reinforcement and renewable power integration.
Equipment Supplied:
20 × 33/0.4 kV Oil-Immersed Power Transformers (Ratings: 400 – 2500 kVA)
8 × Compact Substations** for commercial and residential load centers
Key Features:
High-efficiency silicon-steel core, low no-load loss (< 0.4%)
Copper and aluminum winding options to meet client budget and efficiency goals
Hermetically sealed tank design for low maintenance and long service life
Corrosion-resistant coating for coastal and humid Mediterranean climates
Compliance:** IEC 60076 / EN 50588 standards
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Project Impact
Operational Benefits:
Improved grid reliability and reduced power loss in densely populated districts
Supported distributed solar PV integration into medium-voltage networks
Decreased maintenance by 30% with sealed, oil-free breather design
Economic & Environmental Impact:
Lower lifecycle cost through high energy efficiency
Enhanced resilience against summer peak loads and voltage fluctuations
Contribution to Greece’s clean-energy and carbon-reduction targets
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Why TSTYNICE?
Decades of experience in European voltage systems (20 kV–230 kV grids)
Proven performance in urban and coastal environments
End-to-end engineering — from design to onsite commissioning
Trusted by global EPCs for reliable, sustainable power solutions
