Home / Brand Portfolio
Chapter VThe Integrations
Brands we supply

The world's leading solar brands — delivered to your site.

Inverters, battery storage, transformers and balance-of-system. We source from Tier-1 global manufacturers and integrate them into complete C&I and utility-scale systems.

Inverters Storage Grid Equipment Panels (partner)
7+ Tier-1 brands · BNEF Bankable portfolio · Commercial Neutrality

The industry's dirty secret is that most EPC contractors are quietly exclusive to one inverter brand, one storage vendor and one mounting system — because that is where their volume rebates come from. The specification that lands on the client's desk is not really an engineering choice. It is the contractor's balance sheet wearing a cover page.

We took a different route. We run active commercial channels with Sungrow, Solis and Growatt on inverters; with EVE and CALB on storage cells; with Chint on transformers and switchgear; with Longi and other Tier-1s on panels where a partner brand is specified. The result is that when our engineers specify Sungrow central inverters for a 200 MW project, it is because the site profile, dispatch curve and O&M assumptions said Sungrow. Not because the purchase order did.

How the portfolio works

We supply. We integrate. We stand behind the system.

TPC Solar is not a reseller. When we specify a brand, it's because it has earned its place on projects we've engineered, commissioned and serviced. We supply equipment with full cold-chain logistics, factory warranty support, and in-house engineering to make it work end-to-end.

01
Tier-1 only

Bankable equipment

Every brand we supply is bankable under major lenders' Tier-1 lists. No grey-market surplus, no unknown OEMs.

02
Commercial neutrality

Best-fit, not loudest-fit

We are not exclusive to any one brand. We specify what fits the project — site, climate, tariff, grid code — not what pays the biggest margin.

03
Full accountability

One throat to choke

We handle the RMA, the replacement, and the commissioning recall. You deal with TPC — we deal with the OEMs.

Category 01

Inverters — Commercial & Utility

String and central inverters from 20 kW to multi-MW. We specify based on site topology, grid code, and O&M preference. Residential-scale product is not part of our current scope.

TPC-delivered systems

Inverters, integrated and branded under TPC Solar.

On TPC-executed projects, we install, commission and stand behind inverter systems delivered under the TPC Solar mark — built on Tier-1 OEM platforms, integrated with our panels, and warranted as a single asset. Below are the underlying brands we specify.

See the storage line →
SUNGROW
String · Central 20 kW – 8.8 MW

Sungrow

One of the world's largest inverter manufacturers. Preferred for utility-scale central inverters (SG series) and large C&I string inverters with proven desert performance.

  • Utility central — SG3125HV, SG4400UD, SG6600UD, SG8800UD
  • C&I string — SG50CX, SG110CX, SG125HV, SG250HX
  • Grid code compliance: IEC 62116, IEEE 1547, EN 50549
SOLIS
String 25 kW – 350 kW

Solis (Ginlong)

Strong reliability-per-dollar in the mid-tier C&I range. Frequently specified for mid-size rooftop and ground-mount projects where Sungrow's central inverters are oversized.

  • C&I 3-phase string — S6-GC 25–125 K
  • Large C&I / small utility — S6-GU 196–350 K
  • Integrated string monitoring and arc-fault detection
GROWATT
String · Hybrid 50 kW – 253 kW

Growatt

Broad C&I lineup with a competitive hybrid (PV + storage) inverter range. Selected when projects require integrated storage-ready inverters rather than decoupled AC coupling.

  • MAX series — 50–125 KTL3 LV
  • MAC series — 50–80 KTL3
  • Hybrid storage inverters for C&I microgrids
Category 02

Battery Energy Storage Systems

Utility and C&I-scale lithium iron phosphate (LFP) storage — cells, racks, containerised systems, and full balance-of-system.

TPC-branded containerised storage

Containerised BESS, delivered under one accountable mark.

From 500 kWh to 20 MWh, TPC-delivered storage containers are integrated on Tier-1 LFP cells (EVE, CALB) with full BMS, fire-suppression, HVAC, and PCS — shipped, commissioned and warranted under TPC Solar. Behind every TPC-branded container are the underlying cell brands below.

Grid equipment →
EVE
LFP cells 280 Ah · 314 Ah · 560 Ah

EVE Energy

One of the world's largest LFP cell manufacturers. Specified for new utility BESS where >10,000 cycle life and low degradation matter more than upfront $/kWh.

  • LF280K, LF314, LF560K cells
  • Integrated into containerised 2.5–5 MWh systems
  • IEC 62619, UN38.3, UL 1973 certified
CALB
LFP cells Automotive + ESS grade

CALB

Top-5 global cell maker with deep automotive pedigree. Selected for C&I BESS where thermal stability and fast-response discharge are priorities.

  • L173F280 and L221N113A cells
  • Integrated C&I cabinets 100–250 kWh
  • Grid-forming and grid-following BMS options
Category 03

Grid Equipment — Transformers & Substations

Medium-voltage connection is where most utility PV projects slip the schedule. We bring the transformer, switchgear and substation scope in-house under a single supplier.

From LV to point of interconnection

One supplier for the full MV package.

Most schedule slippage on utility-scale PV sits at the grid-connection boundary — transformer, switchgear, relay protection, RTU, and compliance sign-off. TPC Solar brings this whole package under one supply chain, reducing interface risk and commissioning delay.

CHINT
Transformers MV Switchgear Packaged Substations

Chint Electric

Global Top-100 electrical equipment manufacturer with a full grid-equipment ladder. We supply the full package from the LV side of the inverter up to the point of interconnection.

Power Transformers

Oil-immersed and dry-type, 0.4 / 6.6 / 11 / 22 / 33 / 35 kV secondary. Rated up to 50 MVA.

MV Switchgear

Air-insulated and gas-insulated switchgear panels, 12 kV and 24 kV classes, with vacuum circuit breakers.

Packaged Substations

Factory-built outdoor substations — transformer + switchgear + LV panel in a single walk-in enclosure. Faster commissioning.

  • IEC 60076 (power transformers), IEC 62271 (switchgear), IEC 61936 (power installations)
  • Factory acceptance testing (FAT) and site acceptance testing (SAT) coordinated by TPC
  • Spare parts and emergency response shipped factory-direct on request
Category 04

Panels — Partner tier

Our own TPC panels cover the full efficiency range. When a project specifically calls for an alternative bankable module — because of lender requirements, prior fleet standardisation, or site-specific performance data — we supply from the global market.

LONGi
HPBC · HPDC Tier-1

Longi

Selected when the project specification or lender's Engineer's Certificate requires Longi modules specifically. We do not actively push Longi against our own TPC panel range — we supply it when the project calls for it.

  • Hi-MO X6, X10 series
  • Available in volume with container-load lead times
  • Factory warranty support coordinated through TPC

See TPC Components → for our own panel line.

+
On-request

Other Tier-1 suppliers

Trina, Jinko, Canadian Solar, JA Solar, Risen and others — available on project basis where the specification demands a specific OEM. Send us the requirement and we'll confirm availability and lead time.

Check availability →
Category 05

Balance of System

Mounting structures, DC cables and connectors, combiner boxes, monitoring and SCADA, string fuses, surge protection — sourced from category specialists, integrated by us.

Mounting & Tracking

Fixed-tilt ground-mount, rooftop rail systems, ballasted flat-roof, and single-axis tracker systems.

DC & Cabling

Solar DC cables, MC4 connectors, combiner boxes, string fuses and surge protection — all IEC certified.

Monitoring & SCADA

String-level monitoring, performance analytics platforms, weather stations, and utility-grade SCADA integration.

Decision framework

Which inverter fits which site?

A reference framework our engineering team uses when specifying inverters across project types. Not a universal rule — each site gets specified to its own design basis.

Project profile Sungrow Solis Growatt
Residential ≤10 kW — — Primary
Small C&I 10–100 kW Considered Primary Primary
Large C&I 100–500 kW Primary Primary Considered
Industrial / Captive 500 kW–5 MW Primary Considered —
Utility central 5 MW+ Primary — —
BESS hybrid inverter Primary Considered Considered
Primary specification Project-specific consideration Not typically specified
Chapter V · The Equipment Desk

Twelve manufacturers. One system integrator. Every combination specified, procured, warranted under one roof.

18 SKUs across inverters, trackers, transformers, BESS, cables, protection relays — sourced factory-direct, warranted locally, integrated as a single bill of materials.

Chapter V.i · Specification posture
Twelve frames, one bill of materials

What a multi-brand solar package looks like, when it is specified by engineers who have installed each one.

These are the equipment categories we specify, procure and warrant every week. Every brand in our portfolio has passed our bench test, our field test, and our warranty desk.

Central inverter lineup on concrete plinthCentral inverters · 5 MW+
String inverter installationString inverters
Single-axis tracker structureTrackers · 1-axis
Medium-voltage transformerMV transformers
Substation control panelProtection & control
Battery storage containerBESS · 250 kWh–5 MWh
DC solar cables on reel — regional spares warehouseCables · spares
Containerised equipment loading at portLogistics · port-to-site
Factory acceptance testFAT witnessed
Regional warranty desk at TPC Solar Regional warranty desk · 45-day average closure
Chapter V.ii · The single desk
One counterparty, twelve OEMs

When equipment fails, you file once.

A plant down for want of a $600 fuse should not cost you six weeks. Our regional warranty desk logs the claim, runs the OEM conversation in their language and time zone, and owns the replacement through logistics and customs.

12
OEM partners under desk
45d
Average claim resolution
3
Regional spares warehouses
24/7
Tech support line
Warranty & support

One regional desk for every brand we supply.

When equipment has an issue, you file once — with us. We handle the OEM process, the logistics, and the replacement. You are not chasing an offshore service line while your plant is down.

01 · Regional spares stock

Common failure items — fuses, DC fuses, inverter fans, BMS boards, contactors — shipped factory-direct on request, with delivery time per the agreed shipping incoterm.

02 · Single-desk claims

Our regional warranty desk logs the claim, communicates with the OEM in their language and time zone, and tracks the replacement through logistics and customs. Average resolution under 45 days.

03 · Performance guarantees

Where we supply equipment under an EPC wrap, the performance and availability guarantees sit with us — not with the OEM 4,000 km away. You have one counterparty for the guarantee.

Chapter V.iii · Specification standards
The standards every BoM on this page is written to

Not a single piece of equipment crosses the site fence without one of these.

Every inverter, battery, transformer, protection relay and cable we specify carries the standards below. Where a client procurement policy or grid code requires additional listings, those are added to the specification before the order is placed.

IEC
IEC 61215 / 61730
Module qualification
IEC
IEC 62116 / 62109
Inverter safety & anti-islanding
IEC
IEC 62619 / 62133
Battery safety · LFP / NMC
IEC
IEC 60076 / 61936
Transformers & HV installations
ISO
ISO 9001 / 14001 / 45001
Quality · Env · Safety
UL
UL 1703 / UL 61730
North-American listing

A note on brand references

The brand names and marks referenced on this page are the registered trademarks of their respective owners. TPC Solar supplies these products through standard commercial distribution channels available to solar EPCs and system integrators. Inclusion on this page reflects equipment TPC Solar regularly specifies and integrates and does not imply formal partnership, distributorship or exclusivity with any named manufacturer unless explicitly stated in writing.

Specifying a system? Let's build the BoM.

Send us your site data — capacity, voltage class, storage requirement, grid code — and we'll come back with a complete equipment package across the brands above.

Request a quote See EPC services