Smarter energy. Lower costs. Zero ownership.

For EPCs

We support EPCs for solar, energy storage and electrical installations in offering their customers a full as-a-service model - from planning and financing to operation and decommissioning. Our goal is to build long-term relationships with our network of partner companies and foster close collaboration for mutual success. Contact us to discuss a collaboration.

Solutions for commercial and industrial companies

Companies need reliable and cost-efficient energy systems. However, many prefer not to have to deal with complex technical installations and fear unpredictable costs. Our answer: energy installations as a service. We finance your installation and take care of the entire process – from planning and installation to operation, maintenance, and eventual decommissioning. All investments and operational risks are covered by Sundust. You benefit from lower energy costs and improved sustainability – with no upfront capital. If your strategy changes, you always have the option to purchase the systems and take over their operation yourself.

Solar as-a-service / PPAs

Benefit from low and stable electricity prices and profit-sharing options from solar installations at your location — with no investment costs.

Energy storage as-a-service

Reduce your electricity costs through peak shaving, energy arbitrage and increased on-site consumption of solar power - with no investment costs.

Asset management & sale of surplus energy

By leveraging advanced monitoring software and reselling surplus electricity, we maximize the financial returns of your PV and energy storage installations.

For investors

Through close cooperation with competent EPC partners, detailed risk assessment, legal protection and the development of a diversified portfolio, we realize stable returns for investors with a long-term and sustainable investment focus.

Sundust AG and its subsidiaries are not licensed by the Swiss Financial Market Supervisory Authority (FINMA) as securities dealers, managers of collective investment schemes, or fund management companies. The company does not accept public deposits under the Swiss Banking Act (BankG) and does not offer financial services under the Financial Services Act (FIDLEG). All investment opportunities, shares or loans structured by Sundust AG or its affiliated companies are exclusively directed at qualified investors or individually selected, informed persons (private placements) and do not constitute a public offering.

Long-term, predictable cash flows

Sundust owns and manages a diversified portfolio of photovoltaic and battery storage systems. Thanks to stable operating profit margins, our assets generate long-term, stable, and resilient capital flows.

Low market correlation

Thanks to long-term service and power supply contracts, our assets are characterized by low correlation with stock market movements.

Measurable CO₂-savings

Our investments generate measurable CO₂ savings alongside financial returns.

News

October 29th 2025

Restructuring of the Sundust group structure

We are pleased to announce the successful restructuring of the Sundust group structure and the first capital increase at Sundust Financing AG.

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October 13th 2025

New modular offering for solar BESS as-a-service

Sundust introduces a modular solar and battery energy storage offering. Customers benefit from flexible, combinable options and modules – the right solution for every property.

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March 4th 2025

Sundust expands its offering with ZEV and vZEV billing

Sundust now offers a comprehensive solution for ZEV and vZEV billing, focusing on the specific needs of commercial and industrial customers.

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Project highlights

PV installation for Constri AG und Amsler & Frey AG (835 kWp)

The solar EPC Go Smart Solution AG planned and installed a photovoltaic system for Constri AG and Amsler & Frey AG. The two industrial companies benefit from affordable solar electricity through a long-term Power Purchase Agreement (PPA). The installation was financed by a joint venture between Go Smart Solution AG and Sundust AG, with Sundust providing asset management and Go Smart Solution handling maintenance.

BESS and PV installation for Modellstation SOMOSA

Sundust operates a photovoltaic installation for Modellstation SOMOSA in Winterthur, supplying the institution with solar electricity. The system was installed by CKW and financed by Sundust. We are in the process of installing a BESS (battery energy storage system) for peak shaving and setting up a virtual ZEV to distribute surplus energy to neighboring buildings.

PV installation and full electricity supply (through ZEV) for Dr. Gab's (317 kWp)

In 2018, Sundust signed a power supply agreement with Docteur Gab's brewery and installed a 115 kWp PV system on the brewery's roof, in collaboration with the solar EPC Solstis. To further reduce Docteur Gab's electricity costs and to supply additional parties with solar electricity, Sundust expanded the system by 202 kWp in 2023 and implemented a self-consumption community (ZEV).

Project successes are the best reference for you? Contact us and we will be happy to send you more reference projects.

About us

Since our founding in 2017, we have pursued a clear goal: to contribute to the development of environmentally sustainable energy production.

Our approach is simple: together with EPC partners, we plan, finance, install, and operate renewable energy and energy efficiency systems. This way, we offer property owners and businesses an energy installations as-a-service service solution, reducing energy and investment cost while supporting the transition to a CO2-neutral and efficient energy supply.

The core competence of Sundust AG lies in the financing and operation of energy systems. Our company started with the financing and operation of solar installations for industrial companies. This enabled us to establish the processes and partnerships necessary to offer comprehensive energy solutions today.

We firmly believe that the technologies needed to stop climate change already exist. Through our as-a-service and asset management solutions, we aim to make it as easy as possible for companies to implement these technologies – not only supporting the environment, but also reducing our customers' energy and investment costs. Together, we make sustainable energy possible.

Sundust AG is a member of SWISSOLAR and Switzerland Innovation.