hpwhr@163.com | WhatsApp +86 138 1477 9118 | Est. 2015 · Jiangsu, China
Transformers · Switchgear · Solar PV · Energy Storage

Integrated Electrical Solutions for Global Power & Energy Projects

Backed by a technical team with 30+ years of industry experience and an extensive manufacturing network across China, Topi Power provides transformers, switchgear, solar PV, energy storage and related electrical equipment — from system specification and manufacturer matching to quality control, delivery and after-sales support.

30+
export markets served
30+
yrs technical team experience
7
international standards referenced
Utility-scale solar and battery energy storage installation integrated with wind generation
EMS-Monitored · Utility-Scale Deployment
Supplied & tested to → IEC IEEE / ANSI CSA GOST CE UL

Products can be supplied and tested in accordance with applicable IEC, IEEE/ANSI, CSA, GOST and destination-market requirements, subject to product type and manufacturing partner. See Quality Control for how certification responsibility is split between Topi Power and our manufacturing partners.

The Problem We Solve

One inquiry. One coordinated solution. Multiple qualified manufacturers.

Sourcing transformers, switchgear, solar PV and storage equipment from China usually means juggling several suppliers at once. That creates real friction on global projects.

Multiple Suppliers, Fragmented Communication

Separate quotes, separate contacts, separate timelines to reconcile across every equipment category.

Inconsistent Technical Interfaces

Different manufacturers, different documentation standards — specs that don't line up cleanly.

Difficulty Verifying Capability

Hard to confirm a given factory can actually meet your rating, standard and certification requirements.

Uncoordinated Delivery Schedules

Equipment from different suppliers arriving on different timelines complicates site planning.

Product Ecosystem

What We Source & Coordinate

See all products →

ONAN oil-immersed three-phase power transformer with conservator and on-load tap changer

Transformers

Power, distribution, pole-mounted, pad-mounted, dry-type and substation transformers rated to your voltage class and application.

See product range →
Generic medium-voltage switchgear panel — industry example photoIndustry Example

Switchgear & Substations

MV switchgear and compact/prefabricated substations sourced through our manufacturing network.

See product range → Industry example photo, not an actual supplied unit. Photo: Zen 38, CC BY-SA 3.0, Wikimedia Commons.
Generic ground-mounted solar PV panel array — industry example photoIndustry Example

Solar PV Equipment

Step-up transformers and electrical balance-of-plant equipment for solar generation projects.

See product range → Industry example photo, not an actual supplied unit. Photo: MarkBuckawicki, CC0, Wikimedia Commons.
Generic containerized battery energy storage system — industry example photoIndustry Example

Energy Storage Systems

Transformers and electrical equipment matched to battery energy storage interconnection requirements.

See product range → Industry example photo, not an actual supplied unit. Photo: Yan lance, CC BY 4.0, Wikimedia Commons.
How We Work

The Topi Power Project Process

01

Requirement Review

We review your project scope, technical requirements and target standards.

02

Electrical Engineering

Our technical team defines specifications and confirms feasibility against your application.

03

Manufacturer Matching

We match your requirement against qualified manufacturers in our network.

04

Technical Proposal & Quotation

You receive a proposal built around your spec, not a generic price sheet.

05

Production Coordination

We track manufacturing progress and keep documentation moving in parallel.

06

Inspection & FAT

Factory acceptance testing coordinated, with third-party inspection available upon project requirement.

07

Documentation & Delivery

Test reports, certificates and shipping documentation compiled and delivered with the order.

08

Commissioning & After-Sales

Installation support and after-sales service available upon project requirement.

Why Topi

Why Choose Topi Power

01

Technical Leadership

A technical team with 30+ years of combined industry experience guides every project from spec to delivery.

02

Extensive Manufacturing Network

Access to manufacturers across China spanning transformers, switchgear, solar PV and energy storage equipment.

03

Multi-Product Coordination

One team coordinates transformers, switchgear and related electrical equipment as a single scope, not separate purchase orders.

04

Quality & Documentation Control

Technical spec review, drawing approval and document control carried through from quotation to delivery.

05

One Accountable Project Team

A single point of contact across every equipment category on your project — not a different rep per supplier.

Supply Chain

How Topi Power's Network Works

We keep these roles distinct rather than presenting partner capability as our own.

Topi Power

Technical consulting, manufacturer matching, production coordination, quality & documentation control, and project-level accountability.

Manufacturing Partners

Design, manufacturing, testing and certification of the equipment itself — capability varies by partner and product type.

Selected Manufacturing Partner

Wujiang Transformer Co., Ltd — ultra-high-voltage transformer manufacturing, 10kV–1000kV product range. Capacity, certification and lead-time figures belong to this partner, not to Topi Power. See About for details.

Quality Control

How We Manage Quality

Available upon project requirement — scope depends on product type, manufacturing partner and contract terms. Full detail on Capabilities.

01

Technical Specification Review

02

Drawing Approval

03

Key Material Confirmation

04

Production Inspection

05

Factory Acceptance Test (FAT)

06

Third-Party Inspection

07

Packing & Shipment Inspection

08

Technical Document Control

Tell Us Your Project Requirements

Our engineering team will help define the right equipment and manufacturing solution.

Request a Technical Proposal
FAQ

Frequently Asked Questions

Does Topi Power manufacture the equipment itself?
No — Topi Power is a technical consulting and procurement coordination partner. We match your requirement to qualified manufacturers in our network and manage the project through delivery, rather than operating our own factory.
What efficiency ratings do the transformers meet?
This depends on the manufacturing partner and product line. We'll confirm efficiency class against your specification during the technical review.
Can equipment be built to a specific voltage or standard requirement?
Yes — capacity, voltage class and applicable standard are confirmed against your project spec before we match a manufacturing partner.
What documentation and certifications come with an order?
Documentation scope (test reports, certificates, drawings) is confirmed per order and depends on the manufacturing partner and product type.