Renewable Energy
Solar EPC Company Delivering Turnkey Solar Projects
Trivonix works as a solar EPC company for commercial, industrial and utility clients who want one accountable partner rather than a chain of vendors. Engineering, procurement and construction sit under a single scope, a single programme and a single point of contact — so the party that models the yield is the party that signs off the commissioning report.
That structure matters because most solar underperformance is not caused by the modules. It is caused by decisions made months before installation: an undersized cable run, a string layout that ignores the winter shadow path, an inverter loading ratio chosen for a spreadsheet rather than a site. Turnkey solar projects executed end to end remove the seams where those decisions usually get lost.
What this service covers
- One contract, one owner
- Design, supply, civil, electrical, testing and handover under a single EPC scope with defined milestones and liabilities.
- Engineering-led, not supply-led
- The plant is designed around the site and the load profile first. Equipment selection follows the engineering, not the other way round.
- Documented handover
- As-built drawings, test records, O&M manuals and warranty documentation issued as a complete set at close-out.
What a full-scope solar EPC contract covers
An EPC scope is only useful if the boundaries are explicit. Our solar EPC services are structured in five defined stages, each with its own deliverables and sign-off, so the client always knows what has been completed and what is next.
Engineering and detailed design
Site survey, shadow analysis, structural assessment of the mounting surface or ground conditions, energy yield simulation, single line diagrams, cable schedules, earthing and lightning protection design, and the layout drawings that the construction team actually builds from.
Procurement and vendor management
Technical specification of modules, inverters, mounting structures, cables, protection devices and monitoring hardware; vendor evaluation against those specifications; factory documentation review; and logistics planning so material arrives in build sequence rather than all at once.
Construction and installation
Civil works and foundations, mounting structure erection, module installation, DC and AC cabling, ACDB/DCDB and inverter installation, transformer and switchgear interfacing where applicable, earthing, and cable management — executed to method statements with daily quality checks.
Testing, commissioning and grid connection
Insulation resistance and continuity testing, string polarity and open-circuit voltage verification, IV curve tracing, earth resistance measurement, protection relay checks, inverter parameter setting, and coordination of the utility inspection and metering arrangements.
Handover and performance support
Operator training, monitoring platform configuration, as-built documentation, and a defined defect liability period with a clear escalation route.
Why the EPC route outperforms multi-vendor procurement
Splitting a solar plant across a design consultant, a material supplier and a local installer looks cheaper on the quotation. It is usually more expensive over the asset's life, because nobody owns the interfaces.
- Single-point responsibility — no gap between 'the design was fine' and 'we built what we were given'.
- Design and construction are priced together, so value engineering happens before procurement rather than as an on-site compromise.
- Cable losses, inverter clipping and structural loads are optimised as one system instead of three separately optimised parts.
- One warranty conversation instead of three when something needs to be put right.
- A commissioning dataset that can actually be used as the performance baseline for the next twenty-five years.
Engineering decisions that determine lifetime yield
A solar EPC contractor earns its fee in the design phase. These are the variables that move generation by percentage points, not decimals:
- DC/AC loading ratio, set against the site's actual irradiance profile and the inverter's clipping behaviour rather than a default figure.
- String configuration and MPPT grouping, so mismatched or partially shaded strings do not drag down healthy ones.
- Tilt and row pitch, balancing peak generation against inter-row shading and available area.
- Cable sizing and route length, where a small increase in conductor cross-section often pays for itself in reduced losses within a few years.
- Earthing and surge protection design, which does not add a single kWh but protects every kWh the plant will ever produce.
- Module cleaning access and maintenance walkways, designed in rather than retrofitted.
Sectors we build for
The engineering discipline is common across sectors, but the constraints are not. A manufacturing plant with sensitive process loads needs a different protection philosophy from a warehouse rooftop; a ground-mounted asset feeding the grid needs a different metering and compliance path from a captive installation offsetting daytime consumption.
- Manufacturing and process industry — captive generation against high daytime load with strict power-quality requirements.
- Warehousing and logistics — large uninterrupted roof spans, structural load headroom as the governing constraint.
- Commercial real estate and institutions — phased builds, aesthetic constraints, and occupant-safety-driven cable routing.
- Independent power producers — utility-scale ground mount where evacuation infrastructure drives the programme.
Frequently asked questions
What does a solar EPC company actually do?
A solar EPC company takes single-point responsibility for engineering, procurement and construction of a solar plant. That means it designs the system, specifies and buys the equipment, builds and installs it, tests and commissions it, and hands over a working asset with full documentation — rather than supplying only design advice or only labour.
How long does a turnkey solar project take from contract to commissioning?
Timelines are driven by three things: approval lead times from the utility, equipment delivery schedules, and site readiness. A straightforward commercial rooftop typically moves faster than a ground-mounted plant requiring evacuation infrastructure and land clearances. We issue an indicative programme with the proposal and confirm it after the site survey.
Is EPC more expensive than buying equipment and hiring an installer separately?
The headline number is often higher, and the delivered cost is often lower. Under a split-scope arrangement the owner absorbs the cost of every interface problem — redesigns, rework, delayed approvals, disputed warranties. Under EPC those risks sit with the contractor, which is precisely what is being priced.
Who is responsible if the plant underperforms after handover?
Under a full EPC scope, performance responsibility sits with the EPC contractor for the agreed defect liability period. That is why the commissioning dataset matters: IV curves, insulation values and string-level readings taken at handover become the reference against which later performance is judged.
Do you take on solar EPC projects where the design already exists?
Yes, though we review the existing design before pricing construction. If we are going to carry performance responsibility, the engineering has to be something we can stand behind — and a design review at that stage is far cheaper than discovering a sizing problem during commissioning.
Related services
- utility scale solar power plantGround-mounted, captive and utility-scale solar power plants — from land and evacuation studies through construction and grid synchronisation.
- rooftop solar installationCommercial, industrial and residential rooftop systems engineered around structural capacity, roof life and your actual daytime load curve.
- testing and commissioning servicesPre-commissioning, functional testing and performance demonstration — with a documented test pack that becomes the asset's performance baseline.
- design engineering servicesDetailed design and drawing production — calculations, single line diagrams, layouts, cable schedules and issued-for-construction documentation.
Browse the full range of Trivonix engineering and clean energy services.
Planning a solar project?
Send us the site details and load profile and we will come back with an indicative yield, a scope outline and a realistic programme.