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Operational readiness and safe operations
Establishing and scaling operations and emergency preparedness organizations that ensure safe start-up and operational resilience.
Sustaino AS — Energy Advisory
From offshore experience to sustainable operations
Sustaino helps energy companies build safe, cost-effective and regulatorily robust operating organizations — from oil & gas to renewables and hydrogen.
Oil & Gas Renewables Hydrogen
—— Sustaino AS Energy / Operations / Integrity
Positioning
Sustaino helps energy companies navigate complex technical challenges with practical, value-driven solutions grounded in operational reality. The company supports both mature energy assets and emerging low-carbon projects.
Expertise
Our expertise
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Maintenance strategy and cost control (OPEX)
OPEX budgeting, cost control and criticality-based maintenance strategies — RCM and CBM.
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Regulatory compliance (HAVTIL, DSB)
Constructive engagement with HAVTIL and DSB on compliance, risk management and operational readiness.
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Digitalization and performance management
Digitalization, operational data utilization and performance analytics for continuous improvement.
Services
Specialized advisory across the asset lifecycle
Sustaino supports clients across the full asset lifecycle, combining strategic insight with execution excellence.
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Operational performance
- Technical consulting and project support
- OPEX budgeting, cost control, and performance improvement
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Maintenance and reliability
- Development of optimized maintenance strategies based on asset criticality
- Implementation of Reliability Centered Maintenance (RCM) and Condition Based Maintenance (CBM)
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Asset integrity and lifecycle
- Asset integrity management and lifecycle optimization
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Organization, HSE and preparedness
- Workforce planning and staffing optimization for safe and efficient operations
- Emergency preparedness planning, including risk assessments and response strategies
- Regulatory compliance support and HSE advisory
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Digitalization and decision support
- Digitalization, operational data utilization, and performance analytics
- Stakeholder engagement and decision support in complex projects
Energy Transition Experience
Operational experience from the energy transition
Offshore Wind
Hywind Tampen
World's first floating offshore wind farm powering oil & gas operations.
Hydrogen / Ammonia
Fuella
Green hydrogen and ammonia solutions for maritime decarbonization.
The founder played a pivotal role in Hywind Tampen, the world's first offshore floating wind farm supplying renewable power to oil and gas fields. As Operational Manager, the founder built the operations organization from the ground up and led start-up and commissioning activities.
Today, Hywind Tampen delivers world-leading operational performance, based on the organizational foundations, operating principles, and maintenance strategies established during this phase.
The founder previously served as Head of Operations and Maintenance at Fuella, contributing to the development of green hydrogen and ammonia solutions aimed at reducing emissions in the maritime sector.
About the founder
Founder · CEO
Ole Arild Larsen
22+ YEARS · EQUINOR
From platform manager to founder — built on 22+ years of operational leadership
Sustaino AS is founded and led by Ole Arild Larsen. The journey runs from electrical and project engineering in offshore and energy, through platform manager roles on Snorre A and Gudrun, to Operational Manager for Hywind Tampen at Equinor — the world's first floating offshore wind farm supplying renewable power to oil and gas operations. He then led Operations and Maintenance at Fuella, developing green hydrogen and ammonia solutions. In 2025 he founded Sustaino AS to help energy companies build safe, cost-effective and regulatorily robust operating organizations — across oil & gas, renewables and hydrogen.
Career
- 01 Founder and CEO, Sustaino AS (2025–)
- 02 Head of Operation & Maintenance, Fuella AS (2024–2026)
- 03 Operational Manager, Hywind Tampen, Equinor (2020–2024)
- 04 Platform Manager, Snorre A (2019–2020)
- 05 Platform Manager, Gudrun (2017–2019)
- 06 Operation and Maintenance Leader, Oseberg South (2012–2016)
I build operating organizations that deliver stable production in demanding energy environments — from oil & gas to renewables and hydrogen.
I have established and scaled operations and emergency preparedness organizations that ensure safe start-up, operational resilience and regulatory compliance — with documented engagement with HAVTIL and DSB.
I build rapid trust with senior decision makers, create clarity in complex and transitional settings, and drive disciplined execution that delivers measurable and lasting results.
Outcomes
Practical value, grounded in operational reality
- /01 Achieve operational excellence
- /02 Optimize maintenance strategies and cost structures
- /03 Ensure long-term asset integrity and reliability
- /04 Reduce operational risk
- /05 Enable the energy transition through practical, executable solutions
Contact