We integrate sustainability to build a productive model aligned with today’s decarbonization challenges.
ENSO is much more than an energy solutions company — it is the result of over two decades of specialization, innovation, and commitment to the bioenergy sector and its role in industrial decarbonization.
We are a holding company dedicated to all phases of the bioenergy business, driven by a clear vision: to lead the transition toward a cleaner, more efficient, and decarbonized energy model. To achieve this, we integrate the entire business cycle of energy solutions for thermal and
electric energy — from project development and promotion to engineering and construction, operation and maintenance, or fuel supply for combustion boilers.
At ENSO, we combine advanced technology, tailored solutions, and an integrated approach, with a genuine commitment to sustainability and operational efficiency.
We embrace an identity aligned with our unique business model — solid, reflecting not only what we do but how we do it: with technical excellence, long-term vision, and a clear results-oriented approach.

Throughout our journey over the past 20 years, we have converted more than 1.5 million tons of biomass per year into renewable energy, providing tailored solutions for energy-intensive industrial sectors with a high environmental impact. Our projects have generated more than 400 MWe worldwide — across Europe, the Americas, and Asia — consolidating a global footprint combined with a strong local commitment.
Biomass transformed into renewable energy
Electric Capacity
Installed
Thermal Energy
Installed
Professionals
on staff
CO₂ Emissions
Avoided
The origin of ENSO traces back to the extensive experience of its professionals in the sector. Building on the technical, operational, and strategic knowledge gained in other companies —such as Gestamp Biomass, the cornerstone of our journey—, the team gradually shaped a shared vision that today takes form in ENSO:
a company with its own identity, specialized in the energy transformation of heat-intensive facilities and the development of regulated renewable assets, under a sustainable, profitable model aligned with global climate goals.
It was at that stage of technical and strategic maturity that we redefined our business model toward an ESCO (Energy Services Company) approach, taking on an active role not only as developers and operators but also as long-term energy partners. This model allows us to offer comprehensive energy supply solutions with flexible contractual structures tailored to each client, ensuring efficiency, emissions reduction, and cost savings without the need for upfront investment from the client.
Thus, ENSO strengthens a value proposition built on performance, sustainability, and mutual trust.
Hemos consolidado un modelo de servicios energéticos diseñado para impulsar la descarbonización de sectores estratégicos de la industria.
We design, finance, build, and operate biomass plants and other clean technologies directly within our clients’ industrial facilities under thermal or cogeneration PPA contracts. This allows for the replacement of fossil fuels with renewable energy, without any upfront investment from the client.
We take care of the operation, maintenance, and fuel supply (biomass), ensuring service continuity, real energy savings, and a verifiable positive environmental impact. In addition, we conduct detailed energy studies to identify opportunities for efficiency improvement, integrating advanced technological solutions.
The client pays only for the useful energy consumed (“energy-as-a-service” model), through long-term contracts that ensure stability, transparency, and return from day one — without assuming operational or supply risks. We provide guidance throughout the entire process, from the initial design to environmental compliance and access to grants and emission compensation mechanisms.