About Us
What is an Energy Audit?
An energy audit is a comprehensive assessment of a facility's energy use, identifying opportunities to enhance efficiency and reduce costs. Under R.A. 11285, also known as the Energy Efficiency and Conservation Act, Designated Establishments (DEs) are mandated to conduct regular energy audits to comply with the law and promote sustainable practices. By scheduling an energy audit with us, you ensure your business adheres to regulatory standards while uncovering potential savings and operational improvements.
Schedule an Energy Audit Today!
EXPERIENCED SUSTAINABILITY PROFESSIONALS
Vega Energy Services is an innovative Energy Service Company (ESCO) dedicated to promoting energy efficient solutions that will reduce energy costs for businesses and communities.
Our services are designed to address every aspect of energy management – from conducting thorough energy audits to implementing comprehensive energy systems.
We provide solutions tailored to our client’s specific needs.
To Partner With Customers In Achieving Energy and Sustainability Goals.
We are motivated to fulfill our clients’ energy and sustainability goals by providing services that helps in energy efficiency law compliance, EE project execution and efficient equipment operation and maintenance.
To be a model energy service company in terms of methodology, compliance with relative industry organizations, and pursuit of continuing professional education to enhance client satisfaction and improve knowledge and expertise of our team.
How Can Vega Help Your Business?
Our Difference
Our Strategy
Our Responsibility
The Team

William Alcantara
President
- Certified Energy Manager
- Certified Energy Auditor
- UNIDO Pump Systems Optimization Expert
- Former Energy Department Head, Manila Water Company
- Master in Energy Efficiency and Climate Change, Universidad Complutense de Madrid, Spain
- Master in Applied Business Economics, University of Asia and the Pacific, Manila
- BS, Mechanical Engineering, De La Salle University – Manila
- Former Technical Committee Member of the Wholesale Electricity Spot Market (WESM)
- ASEAN Centre for Energy Awards: Energy Efficiency Runner-Up (2018)

Arturo Alcantara, M.D., MBA-H
Project Manager Information Management Department for all IT-related Program Management Division
- Former President, PhilHealth Physician Association
- Former Head, Informatics, PhilHealth
- Former Acting Senior Vice-President and Chief Information Officer, Information Management Sector, PhilHealth
- Former Consultant, Unisys
- Microsoft Certification, Querying Data with Transact-SQL, edX
- IBM Certifications, Coursera:
- Machine Learning with Python
- Data Science Methodology
- Data Visualization with Python
- Databases and SQL for Data Science
- Data Analysis with Python
- Data Science Orientation
- Open Source Tools for Data Science
- Python for Data Science
- What is Data Science
- Microsoft Certification, Analyzing and Visualizing Data with Power BI, edX
- Microsoft Official Course Certification, Wizards Group, Salcedo Village, Makati City:
- Implementing a Data Warehouse with Microsoft SQL Server
- Implementing Data Models and Reports with Microsoft SQL Server
- Business Intelligence and Analytics Certification, University of the Philippines, Diliman, Quezon City
- BA Development Studies, De La Salle University – Manila
- Master in Business Administration in Health, Ateneo Graduate School of Business – Rockwell, Makati City
- Doctor of Medicine, Our Lady of Fatima University – Valenzuela City
- BA, Interdisciplinary Studies, Ateneo de Manila University – Quezon City

Gerard Ventanilla, MBA
Manager
- Former KYC Analyst for New to Bank Corporate Clients in APAC, Citibank N.A. ROHQ
- Former New Zealand Underwriting Support Property and Liability Insurance, QBE Insurance
- Master of Business Administration – MBA, Singapore Business School
- BA Development Studies, De La Salle University – Manila

Engr. Mark Gil Anthony Rejano, CEA
Energy Efficiency Manager
- Certified Energy Auditor
- Registered Electrical Engineer
- Former Plant Engineer, Glacier South Refrigeration Services Corp.
- Former Plant Electrical Engineer, Team Pacific Corporation
- Former Facilities Engineer, Team Pacific Corporation
- BS, Electrical Engineering – Marinduque State College

Engr. Nelson Jr. Mendoza
Energy Efficiency Engineer
- Registered Mechanical Engineer
- Former Boiler Assistant Supervisor, Central Azucarera Don Pedro, Inc.
- Former Line Production Head, Coca-Cola Beverages Philippines, Inc. – Canlubang Plant
- Former Production Supervisor, Bel Mondo Italia Corporation
- Former Production Supervisor, Universal Robina Corporation – Canlubang Plant 1
- BS, Mechanical Engineering – Colegio de San Juan de Letran – Calamba

Engr. Danner Yarcia
Energy Efficiency Engineer
- Registered Mechanical Engineer
- Diesel Engine Mechanic
- BS, Mechanical Engineering – Pamantasan ng Lungsod ng Maynila

Engr. Ma. Katrina Bondoc,
Energy Efficiency Engineer
- Registered Electrical Engineer
- Former Customer Sales Engineer, MERALCO
- BS, Electrical Engineering – University of Santo Tomas (UST) – Main Campus