We do not build equipment.
We build the intelligence behind it.
Tongjie Energy Technology (Shanghai) Co., Ltd. is a vertically integrated technology provider built around the industrial IoT. We focus on the intelligent, energy-efficient operation of HVAC and adjacent energy systems, and we develop our own energy-saving systems along one line: edge control plus IoT monitoring. Products carry the delivery; continuous service is the foundation. We stay with a plant for the long run.
A clear boundary:
we work on the control layer
In the retrofit market, equipment makers, contractors and consultants each own their part of the job. We take the middle layer — the control that actually thinks. We do not manufacture chillers and we do not replace the facility team; we use algorithms and a platform to recover the efficiency already sitting inside the equipment you own.
That defines our product shape. The DCCS model core, the ECMS management interface and the cloud-edge-device hardware are all designed around one function: connect to existing equipment, and make it run correctly.
The EnerBlue brand was registered in 2024 and the product line was formally named the EnerBlue series (Nexus / Box / Tap). The earlier EnergyBox brand continues as the name of the SaaS platform and of the service business.
From one patent
to a complete product system
First invention patent
Drawing on engineering practice in chiller-plant and heat-source control, we filed our first invention patent and set the technical direction: control the plant with algorithms.
Control optimisation engine 1.0
A control optimisation product for heating and cooling sources reached the market — one of the earliest control optimisation engines in China.
Control optimisation engine 2.0
Strategy framework upgraded to cover more system architectures and more operating conditions.
SaaS service platform launched
Remote monitoring, multi-project management and online diagnosis were established; service moved from project handover to continuous operation.
Multi-function test engine 1.0 / 2.0
Portable efficiency testing became a real capability and turned diagnose first, retrofit second into our standard sequence.
Portable test kit
A wireless, no-cabling, long-battery-life field format that puts a usable efficiency diagnosis within a matter of days.
EnerBlue brand established
Developed the LoRa multi-function wireless data transceiver; registered the EnerBlue brand and formally named the product line the EnerBlue series.
EnerBlue edge data gateway
Edge-side data acquisition and protocol conversion closed the gap, completing the cloud-edge-device chain.
Scenario terminals and new scenarios
The IoT intelligent computing gateway was productised; the portfolio moved into industrial dehumidification, grain-condition monitoring and PVT solar thermal.
HVAC, controls and algorithms
at the same table
Energy-saving projects rarely fail because the algorithm is not advanced enough. They fail because the HVAC engineer does not understand control, and the controls engineer does not understand the process. Our team structure exists to close exactly that gap.
Fifteen years in HVAC energy efficiency and intelligent control; inventor on several control-system invention patents. Owns control strategy and the product technology roadmap.
Previously with CCDI, China Resources and Greentown; involved in Huangpu Gymnasium, Jing'an Sports Centre, Shenzhen MixC and Nanning MixC. Owns project delivery.
Former executive at Johnson Controls and Cushman & Wakefield. Provides technical guidance on building automation and operations management.
Provides the academic backing for algorithm direction and reviews model methodology.
Reviews the technical scheme of major projects and leads industry-academia collaboration.
LEED AP, CFA-ESG consultant and senior energy manager. Owns green building and carbon-related consulting.
Proprietary IP is the
precondition for a long service life
The core algorithms, edge hardware and platform software are all developed in house and are held as a combined portfolio of patents and software copyrights. That is what lets the product keep evolving and a project stay maintainable years after handover.
Patents (invention + utility model)
Software copyrights
| Type | Name |
|---|---|
| Invention patent | Energy-saving control method for chiller and heat-source plants (2013) |
| Utility model | Cloud control device for variable-frequency pump groups on load demand |
| Utility model | Energy-saving control system for a central refrigeration plant |
| Utility model | Optimised control device for central air-conditioning systems |
| Utility model | Low-power LoRa wireless signal monitoring module |
| Utility model | Multi-function regulation system on LoRa networking |
| Software copyright | EnerBlue energy management and intelligent control platform software (5 titles) |
| Qualification | Software product certificate (dual-soft certified enterprise) |
Original certificates are available for verification on request.
Ongoing joint development with Tongji University, Shanghai Jiao Tong University and other institutions. Experts take part in algorithm design and in the review of major project schemes.
System-level integration with automation and equipment brands including Siemens, Johnson Controls and Midea. The existing BAS stays in place — no rip and replace.
Tongjie Energy Technology (Shanghai) Co., Ltd.
Unified social credit code: 91310110MA1G82Y336
Want to see the projects
we have delivered?
Eighteen delivered project categories, from a 112,000 m² airport terminal to electronics-plant chiller rooms. Each one carries an energy-saving record that can be re-tested.