ABOUT US

Alterpower Digos Solar Inc. (ADSI) is the owner and operator of the Digos Solar Power Plant (DSPP), a 46.38 MW solar power plant in Barangay San Roque, Digos City, Davao del Sur.

Phase 1 capacity is at 28.6 MW, while the Phase 2 expansion project capacity is set at 17.78 MW. This brings DSPP’s total capacity to 46.38 MW.

We aspire to be the most reliable and best source of quality renewable energy in Mindanao. We strive to be the most admired corporate citizen in the community where we operate and we are committed to support the country achieve its sustainable development goals.

Meet the Team


  • John Coloso is the President of Alterpower Digos Solar, Inc. (ADSI) since June 2022. Under his leadership, the Digos Solar Power Plant successfully completed its major rehabilitation and significantly improved the plant’s available capacity, reliability, safety and financial performance. He is also concurrently the Head of Operations of Belgrove Power Corporation.

    Prior to joining ADSI, John spent the past 20 years in Alberta, Canada where he established a consulting practice specializing in project management in the Canadian upstream oil and gas sector and co-founded another consulting firm focused on renewable energy development. Prior to immigrating to Canada, John was the GM of Asian Petroleum Corporation’s (APC) Petroleum Trading Operations, Head of Planning and Business Development of Philcom Corporation, and Investment Officer of APC Group Inc. He was also a design engineer at PNOC-EDC prior to attending the Asian Institute of Management.

    John is a licensed Professional Engineer in the province of Alberta, Canada and a certified Project Management Professional (PMP). He earned a Master of Science in Sustainable Energy Development from the University of Calgary in 2018 and a Masters in Business Management from the Asian Institute of Management in 1997. He received his Bachelors degree in Electronics and Communications Engineering from Mapua Institute of Technology in 1989. He was a licensed engineer in the Philippines from 1989 to 2002.

Engr. Maurice Anton T. Galvez
Maintenance Lead

Engr. Alleza Mae G. Buit
O&M Engineer

Engr. Mil Albert B. Torres
Procurement Engineer

Engr. Roland N. Traña
Inverter Engineer

Karl T. Puyos
O&M Engineer

Jerome A. Paran
Maintenance Foreman

Reynante Z. Francisco
Line Man

Jovin P. Zabala
Line Man

John Mc Lenn D. Enriquez
Technician

Core Values

Excellence

We set ambitious goals and strive to achieve the best results. We constantly raise the bar in our performance.

Health

We believe that everyone deserves to live a healthy and fulfilling career and personal life. We foster a healthy work environment and encourage everyone to be healthy in all aspects.

Safety

Safety is paramount in our company. Everyone is empowered to look after their own safety as well as the safety of others.

Integrity

Integrity is fundamental on how we conduct business. We take responsibility and accountability for our actions and we maintain the highest level of professionalism and honesty in all our dealings.

Environment

We are privileged to harness the power of nature for our business and it is our duty to protect the environment for generations to come.

Innovation

We encourage creativity and simplicity. We constantly find new and better ways to do things.

Teamwork

We value each other’s unique talents and strengths. We foster a keen sense of belonging and we believe that we can achieve better results when we work together.