About TSUN

We make solar simple and energy smart.


With global climate change and energy shortage, especially for home owners, high efficient and safe energy is more and more demanded by everyone in the world. TSUNESS Co., Ltd (TSUN) from its establishment, is aiming to provide home owners clean and safe energy from solar, with more economic and easier approach.

TSUN is an innovative High-Tech enterprise, with its German management background and quality assurance system, focusing on the R&D and sales of photovoltaic micro-inverters and energy storage solutions, and is committed to becoming the world's top brand providing the most efficient, highest ROI and safest solar solution to residential and commercial solar Installations.

Mature and Capable Management Team

TSUN has a mature and capable team, the core members are composed of management, marketing and R&D personnel who are deeply involved in the solar energy storage industry with more than ten years of experience.

Its core technical team is all professionals in the field of photovoltaics and energy storage. It has condensed rich industry experience and formed a systematic R&D process and first-class technical level in the industry, which has been widely recognized by the market. The management team has a keen sense of the market, and realizes rapid response to customer needs through precise positioning of customer needs, innovative application of new technologies and rapid iteration of products.

Strong R&D Capabilities

TSUN attaches great importance to technology research and development, mainly adopts the independent research and development model, and continues to deepen the field of photovoltaic micro-inverters and energy storage complete sets of equipment through circuit topology optimization, control algorithm optimization, and power electronic device optimization, and gradually form a core technology with certain industry advanced nature.

TSUN currently has micro-inverter topology technology, soft switching technology, power module active parallel technology in the product line of micro-inverters, and has intelligent control technology, wireless temperature measurement technology, energy management technology etc. Through the above core technologies, TSUN has a certain degree of advancement in the power density, power range, and conversion efficiency of micro-inverters, and in the reliability, flexibility, and intelligence of energy storage complete sets of equipment.

Certified by international authorities, TSUN products are well recognized with outstanding product safety and reliability.

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Global Marketing Network

TSUN has a global marketing, channel sales and after-sales service system.TSUN always adhere to customer application needs as the center, deeply understand customer characteristics, and quickly respond to market demand. Relying on the team's more than 10 years of marketing experience in the photovoltaic industry, TSUN can deeply understand the marketization mechanism of the overseas energy industry.

The current distribution channels cover Germany, France, Italy, Spain, Benelux, Poland, Brazil, Thailand, and the Philippines and other markets, while continuously landing localized marketing service centers. In 2022, a German branch and a Brazilian office have been established successively to continuously promote the global development of TSUN.


We offer tailored solar solutions


Passed the latest EMC testing at the German VDE laboratory. Commenced the construction of a mass production facility supported by the Suzhou High-Speed Rail New City government. Secured over 100 million RMB in Series B financing, exclusively funded by IDG.


Launched TITAN series of high-power microinverters, quickly gaining market recognition. Released Gen3 and Gen3 Plus microinverters, providing full power coverage from 300W to 3000W. Established the German subsidiary, advancing global market presence. Completed Series A financing, led by GLP Hidden Hill Capital.


Launched the second-generation microinverter. Updated Easy Solar Kit series, released ESK Transformer and ESK Popup.


Released the first-generation microinverter. Introduced the concept of high-power microinverters. Established the Brazil office, initiates global strategy.


Officially established TSUN. Launched Easy Solar Kit, rapidly capturing market share.


TSUN team enters the photovoltaic field, accumulating experience and resources.