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3ESL Company Limited

Licensed by the Energy Commission of Ghana

Solar PV. Get it right with us.

One-stop shop for energy efficiency, smart home and solar PV products, project design, engineering, construction and consultancy.

We design, install, test and maintain solar PV across Ghana — and we review other people's.

16.8 MWp

Africa's largest single-rooftop installation

EPC project development support and installation subcontractor, managing over seventy installers on site.

Two EC licences

Installation and importation

Licensed to install and maintain renewable energy systems, and to import the renewable energy equipment.

100+

Installers trained

We have delivered installer certification training in Ghana with our partners - Sunsynk & Dyness.

Household → utility

Project range

From single-home stand-alone and hybrid systems to industrial rooftop arrays and utility-scale systems.

How we work

Four steps, starting with a thorough site assessment

Most solar disappointments trace back to a system sized from a bill instead of a load profile. We measure first, verify the design against the standards before you are asked to pay for it, and leave you with the paperwork that proves what was installed.

  1. 01

    Site assessment

    We visit, measure and record: roof area and orientation, shading, the existing distribution board, and what your loads really are. Everything downstream is built on this, so it is done properly or not at all.

  2. 02

    Load analysis and system sizing

    Your consumption becomes a design: array size, inverter rating, storage capacity and the string configuration behind them. You see the assumptions, not just the answer.

  3. 03

    Design verification and quote

    The design is checked against the standards before anybody is asked to pay for it — string voltages at the coldest morning, conductor sizing and volt drop, protection coordination, DC/AC ratio, roof fit. Then a quote built from a real bill of materials.

  4. 04

    Install, commission, maintain

    Installation to the drawings, commissioning with instrument-recorded test results, and a maintenance schedule that keeps the output where the design said it would be.

Selected work

From single rooftops to industrial PV plants

More projects
A two-storey family home with a red tiled roof carrying a photovoltaic array.
Household rooftop system, Accra.
A technician arranging labelled solar cables beneath an inverter bank.
Inverter cabling and string identification.
Solar modules mounted in a neat block on a brown standing-seam metal roof.
Household rooftop system, Tema.
Two wall-mounted Sunsynk hybrid inverters above matching lithium battery units.
Paralleled hybrid inverters and lithium storage in a residential facility.
Rows of installed solar modules across a dark standing-seam commercial roof under a bright sky.
Grid-tie commercial rooftop array.
A 3ESL technician in a full-body safety harness walking a commercial standing-seam metal roof.
Fall protection on
Solar panels covering a large industrial rooftop, with a maintenance walkway between the arrays.
Large industrial installation

In their own words

Customer testimony

Net metering

Turn your roof into credit that offsets your monthly electricity bill

Under the Energy Commission's Net Metering Code, the surplus your panels export is credited to your account and offset against what you buy back. We design and install to the Code, and handle the application as your EPC.

One thing worth knowing before you start: a plain grid-tied net-metered system must shut down within seconds of losing the grid. If you want power during an outage, that is a hybrid system with storage — a different design and a different price. We will tell you which one you are actually buying.

Two 3ESL engineers commissioning a wall-mounted Sunsynk hybrid inverter.
Commissioning a hybrid inverter against the design.
A floor-standing bank of Dyness lithium battery modules wired into a residential system.
Dyness lithium storage — what keeps the lights on through an outage.

Partners and platforms

SunsynkUK

Bidirectional hybrid inverters and LiFePO4 storage — the backbone of most of our residential and commercial systems.

DynessChina

LiFePO4 battery storage for residential and commercial systems.

Jinko SolarChina

Tier-1 photovoltaic modules from one of the world's largest manufacturers.

CircutorSpain

European energy efficiency, power quality and energy management equipment.

Tell us what you are trying to achieve, and we will tell you what it actually takes

No obligation, and no quote before someone has seen the site. If the honest answer is that solar is not your cheapest option, we will say so.