Provision of advice and services in the field of renewable energy, in particular the maintenance of heat pumps and photovoltaic power plants. Furthermore, it may carry out, either on its own account or on behalf of third parties, all financial, commercial, movable or immovable transactions directly or indirectly related to its social purpose and may be interested, in any form, in all similar companies, in particular by taking a stake in similar companies. The company may also establish branches and subsidiaries in Switzerland and abroad.