Our Purpose
We are advising, integrating and developing, for clients as well as our own portfolio, the next generation of decarbonized energy infrastructure — smart, sustainable, and locally rooted.
We aim to create integrated energy ecosystems that combine renewables, storage, digital technology, and community partnership. We go beyond power projects — we drive long-term impact through innovation, collaboration, and resilience.
From planning to execution, we are committed on shaping energy solutions that are decarbonized, decentralized, and future-ready.
Our Brand
Our brand name is a nod to Guy Steward Callendar, whose main contribution to human knowledge was developing the theory that firstly linked rising carbon dioxide concentrations in the atmosphere to global temperature.
Integrated Business Model
Callendar being the “nexus” in global energy transition
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1Multi-purpose use of land, project area and facilities
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2Integration of established and new technologies…a commercialization pathway to new solutions
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3Boosting assets / project performance with AI solutions
