Wilhelm van Butselaar

Battery Energy Storage (BESS) | Data Centers | Grid Infrastructure | Commercial Growth | APAC Executive

Greater Sydney Area

About

I am a global energy executive with 20+ years of leadership across renewable power, grid-scale storage, and hybrid energy systems. My career spans senior roles at Fluence, Wärtsilä, and SMA, where I have delivered sustained growth, large-scale transformations, and lasting shareholder value. At Fluence, I built a $2.2B pipeline and helped secure >$200M in contracts while leading successful market entries across Japan and Southeast Asia. At Wärtsilä, I established the energy storage business in Asia, scaling it to a top-3 market position and closing a landmark 260 MWh contract in the Philippines. Earlier, at SMA, I led the Australia market entry, grew Southeast Asia revenues by 250% in one year, led major ANZ projects, and helped shape the early PV + storage markets in the Pacific. My leadership extends beyond commercial success. I have full P&L responsibility, scaling teams across APAC, and engaging directly with boards, investors, regulators, and utilities to shape market frameworks. I am also a published thought leader, contributing white papers on BESS payment mechanisms and policy frameworks, and frequently speaking at international energy conferences. I thrive on building organizations, entering new markets, and aligning global strategy with local execution. With deep technical expertise and proven commercial acumen, I help companies lead the energy transition while creating sustainable business growth.

Experience

  • Director, BESS Solution Sales SEA at Delta Electronics Southeast Asia & Oceania
    Dec 2025 - Present · 8 mos

  • VP Growth and Business Development APAC at Fluence
    Oct 2023 - Aug 2025 · 1 yr 11 mos

  • Area Manager Energy Storage and Optimization at Wärtsilä
    Sep 2017 - Oct 2023 · 6 yrs 2 mos

  • Director Sales South East Asia at SMA INDIA & SEA
    Apr 2016 - Aug 2017 · 1 yr 5 mos

    Managing Sales, Marketing and all local operations based in Bangkok and responsible for Philippines, Malaysia, Indonesia, Indochina, Thailand

  • Director Sales Hybrid Energy Systems at SMA Australia
    Jul 2008 - Mar 2016 · 7 yrs 9 mos

    Trainer, Product Manager and Sales Manager for Hybrid Energy Systems for Australia, NZ and the PIC. Member of CEC (Clean Energy Council) PPA (Pacific Power Association) ASC (Australian Solar Council) APVA (Australian PV Association)