Energy Suppliers

wattss AG 

Frauenfeld · Since 2024

wattss AG designs, plans and installs modular battery storage systems and energy management solutions for commercial and industrial customers. Its portfolio includes Pixii‑based systems and product platforms such as PowerShaper and PowerBase, complemented by services from feasibility studies and financing to commissioning and after‑sales support. Common applications include peak shaving, PV+storage, backup power, EV charging and load management.

Windenergie Lindenberg AG 

Müswangen · Since 2009

The core activity of Windenergie Lindenberg AG is the planning, development and operation of wind energy plants for the production of clean energy from renewable sources. The company focuses on the use of wind energy for electricity generation and offers opportunities for private participation in the projects.

Wind Infinity AG 

Steinhausen · Since 2022

The core activity of Wind Infinity AG is to provide services and solutions in the field of renewable energies, particularly in the areas of offshore wind energy, green hydrogen, solar energy, batteries and energy storage, CO2 compensation and reduction, renewable energy certificates, and research and development. The company also offers consulting and advisory services, including strategic alliances and mergers & acquisitions, international financing, market analysis and intelligence, and consulting and advisory services for companies and investors in the field of renewable energies. The company's mission is to create a better world for the future by providing green energy and developing innovative solutions for the transition to a more sustainable energy supply.

WIN Energie AG 

Seuzach · Since 2018

The core activity of GRAVAG Energie AG and GRAVAG Thermo is energy supply and consulting, particularly in the field of heat and energy solutions. This includes the planning, installation, maintenance and repair of heating systems, such as heat pumps, gas and oil heating systems, pellet heating systems, hybrid systems, electricity-generating heating systems and photovoltaic systems. Additionally, the company offers energy consulting, network and technical services, as well as the issuance of building energy certificates (GEAK).

WL Wärmeversorgung Lausen AG 

Lausen · Since 1994

The core activity of WL Wärmeversorgung Lausen AG is the generation and distribution of district heating to households and companies in Lausen, using renewable energy sources such as wood firing, heat pumps and solar energy.

WVN Wärmeverbund Niederhünigen GmbH 

Niederhünigen · Since 2021

WVN Wärmeverbund Niederhünigen GmbH produces, distributes and sells heat energy using a combustion plant and an associated pipeline network. The company uses wood from the nearby forest as fuel.

WWZ Energie AG 

Zug · Since 2001

WWZ Energie AG is a utility and service provider offering energy, telecommunications, e-mobility and drinking water services. Its offerings include electricity and gas, heating/cooling contracting, fiber Internet, TV, mobile and fixed-line services, charging solutions and water infrastructure.

WWZ AG 

Zug

WWZ AG provides services in energy, telecommunications, water and e‑mobility, including electricity, gas, heat/cooling and drinking‑water services. Its portfolio also includes internet, TV, fixed‑line and mobile services, smart metering and charging infrastructure for electric vehicles.

Wymaro GmbH 

Amriswil · Since 2007

The core activity of Pangas Gas & More is the marketing and distribution of gases and related products as well as services in the areas of gas supply, welding technology, barbecue equipment and camping gear.

Wyna Energie AG 

Reinach Ag · Since 2010

The company offers a wide range of services and products in the fields of energy, telecommunications, electrical installations, and building automation. The core activities include: energy consulting and services for private individuals and companies, including energy efficiency optimization and consulting; planning, installation, and maintenance of solar systems and other renewable energy sources; electrical installations and services, including building automation and rental equipment; telecommunications services, including internet, telephony, and data transmission; network services, including transformer stations, public lighting, and gas installations; and digitalization services, including cloud computing, data center housing, and VoIP solutions. The company thus offers a comprehensive range of services and products tailored to the needs of private individuals, companies, and the public sector.

Y-CAD SA 

Yverdon-Les-Bains · Since 2020

Y-CAD SA plans, constructs and operates district heating and district cooling networks and the associated thermal production facilities, with a focus on using local and renewable energy sources. Services include feasibility studies, construction, operation and financing/contracting solutions for supplying thermal energy to property owners and asset managers.

Youdera Energie SA 

Lausanne · Since 2016

Youdera Energie SA provides photovoltaic solutions, including solar subscription plans (Solar Abo) and direct purchase of solar systems, as well as battery storage and e‑mobility services. Its services cover the planning, installation, operation and maintenance of solar installations.

Zentralwärme Ost AG 

Schindellegi · Since 2021

Zentralwärme Ost AG is an energy supplier specializing in district heating solutions using renewable biomass (log wood, pellets or wood chips), offering consulting, system planning, installation, maintenance and financing services for heating systems.

Zwyer AG 

Hofstatt · Since 2017

The core activity of Zwyer AG includes machine operation, trade in energy wood, production of wood products such as wood chips, round bales and square bales, as well as services like wood chipping, transportation, plant protection and mowing services. Additionally, the company offers the sale of plant charcoal and EM products.

PowerUp AG 

Zurich · Since 2025

PowerUp AG operates a network of electric vehicle charging stations and provides a station finder for AC and DC chargers. The service offers semi-rapid charging from 25 kW and fast charging from 100 kW, uses 100% Swiss renewable energy, and includes customer support and contact channels.

Wärmeverbund Stein am Rhein AG 

Stein Am Rhein · Since 2025

The company's core activity is the sustainable heat supply, in particular to the old town of Stein am Rhein, through the expansion and operation of a district heating network.

Arcuna AG 

Cunter · Since 2025

Arcuna AG designs and implements large battery storage systems and charging infrastructure with integrated storage. Services include planning, supply, installation and operation of battery storage systems, plus consulting and project development for utilities, businesses and project companies.

Nodera AG 

Solothurn · Since 2025

Nodera AG develops and operates photovoltaic systems and provides services to finance and flexibilize solar installations, including temporary or permanent purchase of systems to release capital. Services include turnkey solutions, an offer-calculator tool and 24/7 monitoring of installations via Nodaira.

Wärmeverbund Sagiweg AG 

Melchnau · Since 2025

Wärmeverbund Sagiweg AG operates a local heat network using a wood‑chip boiler and solar thermal installations to produce heat supplied to the cheese dairy and to connected residential properties.

Forza Pure GmbH 

Rieden Ag · Since 2025

Forza Pure GmbH supplies renewable energy systems including vertical wind generators (i‑WIND), battery storage solutions and photovoltaic modules. The company provides planning, installation and financing services for grid‑tied and off‑grid systems and offers integrated solutions such as EV charging and electric heating.