Self-research, self-manufacturing,

and a comprehensive and integrated service system.

MENRED Group was founded in 1995 and is an industrial cluster that manufactures a full range of products including heat pump air conditioning, radiant heating and cooling, energy recovery ventilation, water purification, smart home,and energy storage systems.

MENRED Group is a partner of the “Future Building” National Key Laboratory and its manufacturing facilities are certified by Electrolux, a Fortune Global 500 company based in Sweden.

We are based on industry, believe in digital manufacturing

MENRED has four industrial parks, including German Weißwasser industrial park, Lingkun Island green building industrial park(heating and cooling), Jiaxing Environmental Technology industrial park(ventilation and water purification) and 5+mg heat pump air conditioning industrial park. We have reached strategic cooperation with China Academy of Building Research and Dais technology U.S. to build a national standard environmental technology laboratory, CNAS-accredited ‘Dongming Polymer Laboratory’, Migratory Bird New Energy Housing Research Institute and miBEE Digital HVAC Platform, insisting on tamping the industrial foundation of ‘Industry, Academia,Research and Use’.

We set standards and lead innovation

We participated in the development of national standards such as GB/T51350 ‘Technical standard for nearly zero energy buildings’ and GB/T 40438 ‘Integrated heat pump environment control unit with outdoor air’, and have participated in total of 24 national standards and 36 standards from group, local and industry. We are also a member of the National HVAC and Purification Equipment Standard Committee (SAC/TC143), the Council Unit of the HVAC&R Association Branch, the Vice Council Unit of the Comfort Home, Fresh Air and Water Purification Association Branch, and the Chairman Unit of the National Radiation Air Conditioning Alliance. We promote the development of standards to establish technology systems and lead the industry technology innovation.

We serve the world and pursue win-win cooperation

There are 2,700 of our offline retailer stores in China, our operation and service organizations are spread worldwide. We created a Comfort Home Industry Internet platform, created a S2b2C business model to empower and servedistributors. ‘Four online’ of our Ljj App is built for the purpose of increasing efficiency and reducing costs: Staff Online, Product Online, Customer Online, Management Online. A growth flywheel with four components was built: product innovation, classification, customer experience, platform empowerment. We serve the world and pursue win-win cooperation with more than 3,000 partners and 15,000 online members.

We preserve nature and seek for sustainable development

In the context of global climate change and Chinese national strategy of emission peak and carbon neutral, we should be in awe of life, production should be in harmony with nature, setting a self deadline for energy resource recycling and efficient utilization and route map.Innovative thinking and start-ups for carbon neutrality, practicing PEDF (photovoltaic, energy storage, direct current, flexibility) to assist the development of zero carbon emission production,promoting the upgrading on technologies of new energy house and nearly zero energy building. We have our mission always in mind: Innovation for building carbon neutrality.

MENRED group · All categories and brands


As a participating member in the “Technical Standard for Nearly Zero Energy Buildings” GB/T 51350-2019, we prioritize the integration of energy systems and the utilization of solar energy and other renewable energy sources. By combining the linkage mechanism of buildings and electrical equipment inside the buildings, we aim to achieve the maximum utilization and efficient management of energy. MENRED ESS offers an integrated energy solution for the future of photovoltaic energy storage with high technological standards.

Global Deployment Service System

We have 2,700 offline stores and four major production bases in China. In Germany, we have the Weißwasser factory covering 8,000 square meters, integrating research and development with logistics, and serving the entire European market.

Independent research and development of a full range of products

We have achieved full self-development in various areas including BMS (Battery Management System), EMS (Energy Management System), lithium battery packs,inverters, heat pump air conditioning, ventilation systems, and smart home solutions.Through intelligent manufacturing, we aim to create a harmonious and efficient building energy solution that maximizes energy utilization and management.

Committed to sustainable development

We are a key partner of the “Future Building Laboratory” and have independently established the Zhejiang MENRED Innovation Institute of New Energy Housing, which is a provincial-level research institute. We have introduced Swiss technology and established China’s first zero-energy housing factory. Located in the Oujiangkou Green Building Industrial Park, we adhere to the Chinese Three-Star Green Building Standard and have obtained LEED Gold certification from the United States. Our achievements have been included in the “Best Practice Case Studies of Ultra-Low/Near-Zero Energy Buildings in China.”


Optimizing energy management, a photovoltaic energy storage system generates electricity from solar energy. However, the availability of sunlight fluctuates significantly throughout the day. By incorporating an energy storage system, it can mitigate the impact of sunlight fluctuations on the power system. Moreover, the excess energy generated during periods of abundant sunlight can be stored in the system for use when there is no sunlight or when sunlight is unstable, effectively supplementing the entire power system. Additionally, the energy storage system can store energy during off-peak hours and utilize it during peak hours. It can also serve as a backup power source to deal with unexpected power outages.

Stabilizing the grid

Large-scale installation of photovoltaic systems can intermittently supply electricity to the grid or cause frequent fluctuations in energy demand on the grid. Energy storage systems help regulate the balance between supply and demand on the grid, ensuring grid stability.

Load regulation

A photovoltaic energy storage system can store excess solar energy in the system for use during peak demand periods, reducing excessive reliance on the grid. This helps avoid high peak electricity prices, optimize the utilization of renewable energy, and enable off- peak usage.

Emergency power supply

During power outages or grid failures, photovoltaic energy storage systems can provide backup power to ensure a reliable and uninterrupted electricity supply. By configuring the system properly, it can provide power throughout the day, regardless of weather conditions. This is particularly crucial for critical systems such as medical facilities or emergency services, where uninterrupted power supply is of utmost importance.

Systematic interaction of PV & HAVC

Energy management and smart control can be achieved through the integration of photovoltaic energy storage systems and heat pump air conditioning, allowing for intelligent control and optimization of the energy structure. While harvesting energy from the photovoltaic side, the system can also monitor the impact of outdoor sunlight intensity on the ambient temperature. Combined with the information on indoor temperature, humidity, moisture content, enthalpy, and more, obtained by the heat pump air conditioning, an AI intelligent algorithm can be used to execute the optimal operating conditions, maximizing the optimization of energy supply while ensuring a comfortable indoor environment.

PV energy storage system + Heat pump air conditioning intelligent management

The photovoltaic energy storage system stores excess energy from Part A and releases it during Part B and Part C time periods, maximizing the utilization of solar energy through rational allocation. At 10:00 AM, when the system detects a continuous increase in PV power generation while meeting the load and the battery is fully charged, it communicates
with the heat pump system. The heat pump air conditioning will adjust to its maximum power operation, and the indoor temperature will reach the set minimum temperature (the lower limit temperature under the linkage mechanism). At this time, the excess energy will be stored in the building’s water circuit.
When the PV power decreases, the heat pump air conditioning will be notified to execute low-power operation. The energy storage+heat pump linkage mechanism will be disabled once the indoor temperature rises to the temperature set by the heat pump air conditioning, and control authority will be transferred to the autonomous control of the heat pump air conditioning.

(This mode is for demonstration purpose only. The actual operating strategy
will be recommended by the system for user confirmation.)