Since 2012, this initiative has been in place for regional companies from all parts of the solar value chain, such as module, inverter or mounting system manufacturers as well as municipal utilities and research institutes. The central goals are to raise public awareness of the industrial and economic importance of solar energy and to actively develop the legal parameters for further expansion. Two specific projects that we have realised together with association partners show that we can achieve more together: the 1.35 MW project in Neckarsulm with Orange Solar and the 443 kWp project in Esslingen with EnBW.

The Federal Association of Medium-Sized Businesses is the voice of the SME sector. As a network “by companies for companies”, it represents the interests of around 30 employer and business associations with over 900,000 entrepreneurial voices within the framework of the SME Alliance. The aim is to make companies fit for the future in global competition, especially through innovations for sustainable business, corporate environmental protection, key technologies and appropriate product development.

Swissolar is the Swiss Solar Energy Professionals Association. It advocates a stronger deployment of solar energy in Switzerland, whether as solar thermal for domestic warm water preparation and heating, as solar power or by applying the principles of solar construction.

The Federal Association Photovoltaic Austria is a voluntary and non-partisan interest group with the aim of improving the framework conditions for the photovoltaic and electricity storage industry in Austria. To this end, the association represents the industry with a strong voice in politics, business and the public and creates the necessary framework conditions for one of the most important technologies of the future. Its members include over 330 companies and more than 100 private interested parties along the entire value chain.

Solar Energy UK is an established trade association working for and representing the entire solar and energy storage value chain. It represents a thriving member-led community of over 230 businesses and associates. Purpose of Solar Energy UK is to catalyse the collective strengths of their members to build a clean energy system for everyone’s benefit.

Italia Solare is the only association in Italy dedicated exclusively to photovoltaics and technological integrations for intelligent energy management. Members include among others companies and organizations active along the whole value chain: energy traders, technology manufacturers, distributors, designers and installers, EPC and universities.

ENERPLAN is the representative union of the solar industry in France and has members throughout the solar value chain. Since its creation, ENERPLAN has brought together several hundred companies to represent solar professionals and defend their interests, and to lead, structure and develop the sector.

The Syndicat des énergies renouvelables (SER) was founded in 1993 and represents all sectors of renewable energy in France. Today, the association has 540 members, two-thirds of which are small and medium-sized enterprises (SMEs) and mid-sized companies. It brings together all industry stakeholders – from energy producers and plant operators to planners, manufacturers, installers, and specialized professional associations – covering the entire value chain. SER has been committed to developing the legal, regulatory, and economic framework for renewable energies, making a significant contribution to France’s energy transition.

The Polish Photovoltaic and Energy Storage Association is a non-governmental organization whose main goal is to promote and support the development of photovoltaics in Poland. SBFIME brings together a wide range of companies in the photovoltaic industry, from equipment manufacturers and distributors to installation firms. The association actively participates in public consultations on energy-related legislation, prepares and publishes reports on the state of the Polish photovoltaic market, and contributes to the development of guidelines and standards for PV installations.

K2 is a member of Spain’s two key industry associations for photovoltaics and renewable energy: UNEF and APPA. UNEF (Unión Española Fotovoltaica) is the leading association of the Spanish PV industry, bringing together more than 700 companies across the entire value chain. It sets industry standards, promotes technological innovation, and represents the sector in political and regulatory matters. UNEF plays a pivotal role in advancing Spain’s energy transition toward a cleaner, more efficient, and competitive system, helping position the country as a European leader in photovoltaics. APPA (Asociación de Productores de Energías Renovables) is one of Spain’s most important renewable energy associations and connects stakeholders from solar, wind, biomass, hydropower, and biogas. By actively shaping energy policy, fostering research and innovation, and strengthening dialogue across the energy system, APPA contributes significantly to Spain’s decarbonization strategy and to the development of a resilient and future-ready green energy market.