33 kV Dedicated Line
Sentinel Steel PLC · Bishoftu
The 14MW, 33kV dedicated power line — our flagship. Route survey, pole erection, conductor stringing and commissioning, delivered end to end.
Contractor & Engineering Works
From 14MW power lines to transformer installations — we build the electrical infrastructure that keeps Ethiopian industry running.
Adera opened in Addis Ababa in January 2015 with a simple premise: deliver electrical projects that work, on time, without the overhead that slows larger firms down.
Since then the company has completed more than 32 projects across Addis Ababa and the surrounding regions. The client list runs from Ethiopian Electric Utility — one of the country's largest infrastructure operators — to private factories, steel manufacturers, and real estate developers.
The team stays lean by design. Between 19 and 30 engineers, electricians, and site staff depending on active workload. That size means senior staff stay hands-on at every stage, not just at handover.
The longer-term focus is on renewable energy and agro-industrial machinery — areas where reliable electrical infrastructure directly affects food production and energy access across Ethiopia.
Registered in Bole, Addis Ababa. First contracts secured within the opening quarter.
Sentinel Steel PLC contracts awarded — from a 15kV line relocation in Bishoftu, scaling to complex substation work.
Multiple contracts with Ethiopian Electric Utility — including the Oromia President Palace power relocation and Sheraton–Grand Palace corridor.
The 14MW, 33kV dedicated power line for Sentinel Steel — the company's largest project to date — completed in Bishoftu. Team expands to 30.
Sentinel Steel PLC · Bishoftu
The 14MW, 33kV dedicated power line — our flagship. Route survey, pole erection, conductor stringing and commissioning, delivered end to end.
Sentinel Steel PLC · Transformer installation
Transformer installation with oil filtration and testing, 15kV & 33kV panels, protection relay settings and underground cable termination.
EEU · Real estate · Commercial
50kVA to 800kVA distribution transformers, 15kV overhead lines and LV underground cable — Flamingo, Bole Bulbula, Asko, Shola Gebeya, Karakore and beyond.
Our long-term focus
Solar arrays, wind and generator systems, plus motor control centres, VFDs and PLC integration for milling, grain processing and packaging.
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Full electromechanical design and installation for industrial plants and commercial buildings — single contractor from schematics to switch-on.
Industrial & CommercialCovers load calculation, single-line diagram design, conduit routing, panel installation, earthing systems, and final commissioning testing. Works to IEC and Ethiopian standards.
15kV and 33kV overhead and underground distribution line construction — conductor stringing, transformer mounting, pillar and panel installation.
15kV · 33kV SystemsIncludes route survey, pole erection or trench excavation, cable pulling and termination, switchgear commissioning. Delivered for EEU and private industrial clients across Addis and regional towns.
Supply, installation, and oil filtration of distribution and power transformers — from 50kVA building units to 9MVA industrial substations.
50kVA – 9MVA RangeIncludes transformer oil filtration and testing, bushing inspection, protection relay setting, load tap changer verification, and full commissioning with test records provided to the client.
Solar panel arrays, wind power installations, and generator systems — design, installation, and commissioning for off-grid and grid-tie applications.
Solar · Wind · GeneratorSystem sizing based on actual load profiles. Includes mounting structure fabrication, inverter installation, battery bank setup, grid interface protection, and operator training on system monitoring.
Electromechanical design and installation for agro-industrial equipment and manufacturing systems, including commissioning and operator handover.
Agro-Industry FocusExperience with grain processing, milling, and packaging equipment electrical systems. Covers motor control centers, variable frequency drives, PLC integration, and preventive maintenance scheduling.
Scheduled maintenance and fault diagnosis for operational electrical systems — minimizing unplanned downtime for industrial and commercial clients.
Preventive & CorrectivePreventive maintenance programs with defined inspection intervals. Emergency fault response. Thermal imaging, insulation resistance testing, and protection relay testing included in annual maintenance packages.
14MW, 33kV Dedicated Power Line — Bishoftu City
9MVA Substation — Transformer Installation, 15kV/33kV Panels & UG Cable Termination
7MW, 15kV Dedicated Line Construction — Bishoftu City
15kV & 0.4kV Relocation — New Oromia President Palace, Flamingo–Olympia
15kV Express Line — Black Lion Substation to Mexico Area, Addis Ababa
Power Relocation — Sheraton Hotel to Grand Palace Road Corridor
15kV Line & Transformers for Telecoms Towers — Karakore Area
800kVA Compact Transformer, 15kV UG Cable & Overhead Line — Shola Gebeya
630kVA Transformer & Switchgear Relocation — Flamingo
400kVA Distribution Transformer & LV Underground Cable — Asko Leaz Sefer
315kVA Distribution Transformer & LV Underground Cable — Bole Bulbula
Transformer installations, distribution lines, and LV cable works across Ayat, Furi, Sebeta, Sululta, Figa, and Ashewa Meda.
Every project gets a written quality plan before work starts — not a template, an actual plan covering inspection checkpoints, material specs, and handover standards for that specific site.
Delivered against Ethiopian standards and international reference codes. Where those conflict, the project team resolves discrepancies before construction begins — not during commissioning.
The health and safety policy is active, not procedural. Site-specific risk assessments, subcontractor briefings, and direct employee accountability are part of how work gets done.
Meeting the client's requirements is the primary task of every employee — from engineers on site to management. Not a slogan; it shows up in how project decisions get made day to day.
Planning cycles include explicit improvement targets. Service delivery and internal processes are reviewed against those targets on every project, not just annually.
All work complies with applicable Ethiopian laws and relevant international standards. Where regulations don't cover a specific situation, the company applies the higher standard without exception.
Site-specific HSE plans, mandatory safety briefings, and individual employee accountability. Subcontractors are held to the same standards. No project begins without a signed site safety assessment.
Business conducted with honesty and transparency. Engineering decisions are made on technical merit. No shortcuts that compromise long-term system reliability for short-term cost savings.
The company runs with 19 core staff — engineers, electricians, site workers, and administration — expanding to around 30 during large-scale projects.
That's a deliberate choice. A smaller, stable team means the people who price a job are the same people who build it. The general manager and technical manager stay involved at every stage, not just at the kick-off meeting.
Each site has a dedicated project manager and foreman responsible for day-to-day labor, materials, and schedule. The system is flat enough that decisions get made on site, not lost in layers of approval.
Flip through the full ADERA company profile right here — or download the PDF to share with your team and stakeholders.
Whether you need a full substation, a distribution line, or a solar installation — reach out with your scope and we'll come back with a plan.