Realizing Indonesia’s Renewable Energy Potential Through Innovative Hydropower Solutions.
Founded in 2013, axerna is a pioneer in hydropower development, dedicated to driving Indonesia’s renewable energy revolution. We specialize in every phase of the process: from development and engineering to financing and investment, construction and supervision, and ongoing operation and maintenance. With over a decade of expertise, our team has built a strong foundation of successful projects, each contributing to a cleaner, more sustainable energy future for Indonesia.
Our mission is to lead the charge in accelerating the transition to renewable energy, creating lasting value through high-impact hydropower investments that meet rigorous financial, technical, and environmental standards. We are deeply committed to innovation, continuously expanding our project portfolio and pushing the boundaries of what’s possible in renewable energy.
At axerna, we don’t just develop projects; we create opportunities that drive meaningful change. Our vision is to provide end-to-end hydropower solutions that not only power the nation but also inspire future generations to embrace a cleaner, more energy-efficient world. Together, we are building a sustainable future, one project at a time.
Our Management Team
Markus Straub moved to Indonesia from Germany for a contract with SAP, but after the contract ended, he chose to stay, drawn to the country’s potential and opportunities. With experience as an independent SAP consultant, Markus recognized the growing demand for sustainable energy in Indonesia.
In 2013, Markus founded Axerna as a local partner for Global Hydro Energy GmbH. Combining his deep market knowledge and a skilled team, he expanded Axerna’s focus into hydropower. Over the years, the company has successfully developed and managed its own projects, becoming a key player in Indonesia’s renewable energy sector.
Having spent more time in Indonesia than in Germany, Markus is now a recognized leader in the hydropower industry. His expertise in local market dynamics, along with a strong track record in hydropower, positions Axerna as a forward-thinking company capable of driving sustainable growth and shaping the future of Indonesia’s energy landscape.
Devindra Ratzarwin is an accomplished professional with expertise in finance, corporate governance, investor relations, and strategic development, particularly in Indonesia’s energy and infrastructure sectors. He holds a Bachelor’s in Finance from the University of Louisiana at Lafayette and an MBA from McNeese State University.
With senior roles at PT Adaro Energy Indonesia Tbk, PT Bank Permata Tbk, IBRA, and PPA (Persero), Devindra has led strategic initiatives and strengthened governance in both traditional and renewable energy markets. He also served as Director of Corporate Affairs at PT Bukaka Teknik Utama Tbk.
At Axerna, Devindra drives business development, applying his industry knowledge and leadership to expand the company’s renewable energy footprint.
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With a specialization in small, mini, and micro-hydro power projects, his expertise spans engineering design, project management, development, planning and implementation, feasibility studies, project review, & optimization. He has a comprehensive understanding of IPP project development, starting from potential sites survey, sites assessment, sites development, project permits, land acquisition, and community engagement, along with proficiency in arranging DPT in PLN and preparing document IPP tender in PLN. Mr. Zamzam has almost 20 years experience in hydropower with basic as Civil engineer and currently as a Engineering Manager and Project Development for Independent Power Producer (IPP) of Mini/Small Hydro Power with total 100 MW under development.
has more than 21 years of experiences in mini or micro hydropower sector. His experiences including site assessment, pre-feasibility & feasibility studies for micro and mini hydropower plants. He is also a team leader during site surveys and assessments, and supervisor during implementation for new plants or improvement project with extensive field experience in the development of micro and mini hydropower plants. Hari Wibowo is capable and familiar with civil engineering programs and tools measurement, related to the micro and mini hydropower sector