From single-line diagram to energization
Silverstone provides comprehensive EPC — Engineering, Procurement and Construction — for substations, transmission lines and electrical systems, with successful delivery across more than 10 countries and regions in China, Southeast Asia and Africa.
One partner from design to energization
Since 2014, Silverstone has delivered dozens of power and mechanical EPC projects across Asia and Africa from our headquarters in Suzhou Industrial Park — substations, transmission lines and renewable grid integration for utilities, contractors and industrial clients.
Every country and every project comes with different technical and commercial requirements. For each engagement we assemble the right supply chain — sourcing equipment and materials from qualified manufacturers in China and from project-local suppliers — to achieve the best price, the most suitable performance and quality, and the shortest project delivery time.
Our engineers work to IEC and IEEE standards, adapt to local grid codes, and routinely lead the electrical scope alongside local contractors and design consultants.
- — One contract, one responsibility — engineering through commissioning
- — IEC / IEEE standards, adapted to local grid codes
- — Multi-supplier sourcing for best price, performance and lead time
- — Local contractor & consultant interface management
- — 24h response on working days
Studies & Design
Load-flow, short-circuit, motor starting, conductor selection, sag-tension and busbar calculations. Design in PSCAD, Primtech 3D, AutoCAD and PLS-CADD to IEC / IEEE standards.
Multi-Supplier Sourcing
Transformers, switchgear, arresters, insulators and line hardware sourced per project from qualified manufacturers in China and project-local suppliers — one contract, one responsibility.
Commissioning & Care
Construction coordination, interface management with contractors and consultants, testing and commissioning — then maintenance and operation support for the asset's life.
Delivered, energized, in service
Cross-Border 400kV Power Transmission Network Expansion
A 250-kilometre 400kV AC transmission interconnection between Thailand and Laos — from engineering design through tower erection and conductor stringing — strengthening regional electricity security and cross-border power trade in Southeast Asia.
- — 250 km of 400kV AC line across two countries
- — Detailed engineering to technical and environmental requirements
- — Tower erection, conductor installation and commissioning
- — Regional interconnection enabling power exchange
South Asia High-Voltage Direct Current Transmission Project
High-voltage direct current transmission infrastructure enabling efficient bulk power transfer over long distances, delivered with full engineering, procurement and construction support.
- — HVDC converter and line infrastructure
- — Long-distance bulk power transfer capability
- — EPC delivery over a two-year program
230kV Substation & Transmission Line, Cambodia
Engineering, supply and construction of a 230kV substation and associated transmission line in Tbong Khmum province — part of the national grid reinforcement program expanding bulk power transfer to Cambodia's eastern region.
- — 230kV substation and transmission line delivered
- — Design, equipment supply, installation and commissioning
- — Strengthens the national grid in the eastern region
- — Commissioned in 2021 for the national utility
150/20kV Substation Upgrading Program, Java–Bali
Extension and upgrading of 150/20kV transformer bays across eleven high-voltage substations in East Java and Bali for the state utility — an internationally financed program raising transformation capacity on Indonesia's most densely loaded grid.
- — 11 substations upgraded across East Java and Bali
- — 150/20kV transformer bay extension and upgrading
- — Multi-site works on a live grid, ADB-financed program
- — Completed in 2018
150kV Substation for Power Evacuation, Papua
Engineering and construction of a 150kV substation in the Timika area, evacuating generation from a local power plant into the high-voltage network — detailed engineering through energization delivered on a remote-site schedule.
- — 150kV substation for plant power evacuation
- — Detailed engineering design and site construction
- — Remote-site logistics in the Papua region
- — Energized in 2022 for the state utility
132kV Rift Valley Transmission Line, Kenya
Engineering, equipment supply, tower erection and conductor stringing for a 65-kilometre 132kV transmission line in Kenya's Rift Valley — relieving an overstretched 33kV distribution network and improving supply reliability to fast-growing load centres.
- — 65 km of 132kV transmission line delivered turnkey
- — Route survey, tower erection, conductor stringing and commissioning
- — Replaces an overloaded 33kV network feeding regional load centres
- — Energized in 2025 for the national transmission utility
132/33kV GIS Substation, Bangladesh
Design, supply, construction and commissioning of a 132/33kV gas-insulated substation for the national grid company under an internationally financed grid modernization program — compact GIS footprint suited to constrained urban land.
- — 132/33kV GIS switchgear, power transformers and protection systems
- — Civil, installation, testing and energization scope
- — Delivered to international-financed program requirements
- — Energized in 2024
132/33/11kV GIS Substation, Sarawak
Full turnkey delivery — design and engineering, procurement, factory testing, installation, pre-commissioning and energization — of a 132/33/11kV GIS substation serving a free industrial zone in Kuching, including all civil, structure and M&E works.
- — 132/33/11kV GIS substation, complete turnkey scope
- — Civil, structure and M&E works included
- — Supplies a growing industrial zone load
- — Energized in 2017 for the state utility
132/33kV GIS Substation, Bintulu
Design, engineering, supply, erection and commissioning of a 132/33kV GIS substation injecting 132kV power into Bintulu city centre — catering for anticipated load growth and strengthening supply reliability in Sarawak's industrial corridor.
- — 132/33kV GIS substation, full EPC scope
- — 132kV injection into the city centre network
- — Compact GIS design for a constrained urban site
- — Delivered for the state utility
115kV Transmission Line & GIS Extension, Siem Reap
Construction of a 115kV overhead transmission line in Siem Reap Province linking the existing substation with a new GIS facility — improving supply capacity and reliability for one of Cambodia's fastest-growing tourism and urban centres.
- — 115kV overhead transmission line construction
- — Interconnection with a new GIS substation
- — Route engineering, tower erection and stringing
- — Delivered for the national utility
132/66/33kV Digital Substation, Namibia
A hybrid AIS/GIS substation for the national utility, engineered as a fully digital facility with IEC 61850 process-bus and station-bus architecture, fibre-optic communications and centralized monitoring — strengthening bulk supply to Namibia's coastal region.
- — 132/66/33kV hybrid AIS/GIS configuration
- — IEC 61850 digital protection, control and process bus
- — Systems integration, testing and commissioning
- — Commissioned in 2025
66kV Transmission Line & 66/33kV Substations, Liberia
Supply and installation of a 66kV transmission corridor and associated 66/33kV substations under an internationally financed electricity expansion program — extending grid reach beyond the capital and enabling downstream 33kV distribution.
- — 66kV transmission line supply and installation
- — 66/33kV substations with downstream 33kV distribution works
- — Delivered to international financier procurement and QA requirements
- — Energized in 2020
66kV Substation Expansion, Yangon
EPC expansion of an urban substation in Yangon including ten circuits of 66kV underground cable — adding capacity to the city's distribution backbone while working within a live, space-constrained metropolitan site.
- — Urban substation expansion, EPC scope
- — Ten circuits of 66kV underground cable
- — Works executed on a live metropolitan network
- — Completed for the Yangon supply utility
66/11kV 20MVA Substation, Mandalay
Design, supply and construction of a 66/11kV 20MVA substation in the Mandalay area — stepping bulk supply down to distribution level for growing urban and industrial loads in central Myanmar.
- — 66/11kV, 20MVA transformation capacity
- — Design, equipment supply, installation and commissioning
- — Feeds urban and industrial distribution loads
- — Completed in 2019
33kV Power Transformer Implementation in Bangladesh
Commissioned a state-of-the-art 33kV, 26MVA power transformer and associated electrical equipment to modernize and expand distribution infrastructure — overcoming dense-urban logistics, integration with an aging grid, and international environmental and safety standards.
- — 33kV / 26MVA transformer delivered & commissioned
- — Heavy-equipment logistics in a densely populated area
- — Compliance with international environmental & safety standards
- — Outstanding end-user satisfaction on performance and reliability
Rural 33/11kV Substations Program, Tanzania
Supply and installation of six 33/11kV distribution substations across western and southern Tanzania for the national rural energy agency — bringing reliable medium-voltage supply to underserved districts under a government electrification program.
- — Six 33/11kV distribution substations across six districts
- — Equipment supply, installation and commissioning
- — Multi-site logistics in remote rural areas
- — Energized and certified complete in 2015
33/11kV GIS Indoor Substations, Dhaka
EPC delivery of eight indoor 33/11kV GIS substations for Dhaka's distribution utility — compact gas-insulated design engineered for dense urban sites where land is scarce and reliability demands are highest.
- — Eight indoor 33/11kV GIS substations, 35MVA scale
- — Compact footprint for dense urban siting
- — Design, supply, installation, testing and commissioning
- — Completed and handed over in 2018
33/11kV Injection Substation & 11kV Distribution Network, Nigeria
Construction of a 15MVA 33/11kV injection substation with associated 11kV feeders and distribution network in Kaduna State under the national power program — adding transformation capacity and reducing technical losses on an overloaded distribution system.
- — 1 × 15MVA 33/11kV injection substation
- — 11kV outgoing feeders and distribution line works
- — Loss reduction and capacity relief for the distribution network
- — Completed and commissioned for the national power program
33/11kV Substation & 11kV Feeders, Ghana
Turnkey construction of a 33/11kV substation with connecting 11kV feeders in Ghana's Eastern Region — improving voltage quality and supply reliability for surrounding towns and rural communities.
- — New 33/11kV substation, fully turnkey
- — Connecting 11kV feeders to surrounding load centres
- — Improved voltage quality and supply reliability
- — Completed in 2017
Solar-to-Power Substation in the Indonesian Archipelago
Substation infrastructure integrating solar generation into island grids — equipment supply and engineering across dispersed archipelago sites.
- — Solar integration substation equipment
- — Multi-site logistics across the archipelago
- — Grid-code compliant protection and metering
Power Transmission Project for Offshore Wind Farms
Transmission infrastructure evacuating offshore wind generation to the onshore grid, engineered for marine-environment reliability.
- — Offshore-to-onshore power evacuation
- — Marine-environment equipment specification
- — Multi-year program delivered 2017–2019