GES – Global Energy Services, a full-service provider of engineering, construction, and asset management and operational services for renewable energy assets, expects to increase its construction business by 83% this year, mainly driven by solar photovoltaic technology. In order to deliver this growth, the company has reorganised its Construction division with the aim of strengthening it and accelerating business diversification and international expansion.
For the 2026 financial year, the company forecasts €247 million in construction activity, supported by a robust pipeline of solar and energy storage projects in its portfolio. Across these technologies, GES anticipate achieving revenue growth of around 80%. GES began building solar power plants 20 years ago and, by 2025, its solar PV business accounted for almost 77% of its construction contracts. Against the backdrop of a slowdown in Spain’s wind sector, GES is leveraging its international presence to pursue wind projects outside Spain, primarily in Latin America. In the region, GES is currently assessing around 2.1 GW of wind projects in Mexico, Chile and Peru.
New leadership appointments
In 2024, GES launched a strategy focused on geographic diversification and developing new business lines. The aim was to establish the company’s presence in rapidly growing technologies such as battery storage systems (BESS), electrical substations, and high-voltage transmission lines, while also regaining international market share in European and Latin American countries, where GES has a long-standing reputation as a leading EPC contractor.
In order to support this strategy and the anticipated increase in construction activity, GES has reinforced its organisational structure by appointing new senior executives who possess substantial international experience and in-depth knowledge of the sector’s pivotal technologies. In this context, Raúl de la Nava joined the company as Director of International Construction, bringing with him over 14 years’ experience working on renewable energy projects across Latin America. Seven of these years were spent working in the Mexican market, a country in which GES has set ambitious short-term growth expectations.
Additionally, the recent appointment of Javier Sánchez as Director of Interconnection and BESS Operations has further strengthened the company’s technical capabilities. Javier has extensive experience in Europe, particularly in Italy, as well as in Latin America, in the management of energy storage (BESS) projects and high-voltage infrastructure.
At the same time, the company has created a specialised electrical substations unit and a department dedicated to high-voltage transmission lines. This department is divided into construction and assembly and already has two specialist teams. GES’s commitment to hybridising renewable energy projects with battery storage has enabled the company to secure its first projects in this field. These include a hybrid project in Chile with a combined generation capacity of 697 MW (including 1,360 MWh of storage) that integrates wind, solar and battery technologies. Moreover, the company is currently bidding on several BESS projects, both stand-alone and combined with solar PV plants.
A decisive moment
Spain is at a decisive moment for its power system. On the one hand, batteries are playing an increasingly important role, with new projects totalling more than 7.6 GW under development. Meanwhile, government plans foresee a 65% increase in investment in electricity distribution networks and an expansion of 27.7 GW of additional grid access capacity by 2030. If these measures are implemented, they would strengthen Spain’s renewable energy market and its electricity distribution network.
Within this context, the development of high-voltage transmission lines is emerging as one of the country’s most promising growth markets. These infrastructures are essential for meeting rising electricity demand, integrating new renewable capacity, ensuring system stability, and connecting generation assets — which are increasingly distributed across the country — with major consumption centres. This creates a clear opportunity in the high-voltage transmission construction market, an area in which GES has been preparing for some time and is now tendering for its first projects.