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Jack HailstoneJH

Jack Hailstone

Independent Advisor – Energy Systems & Flexibility

€450/day
Madrid, ES
3-7 years

Average response time: 1 hour

About Jack

I led the delivery of CrowdFlex for OVO Energy which involved the largest consumer-led flexibility trials in Europe . The experience has informed me of what it actually takes to make consumer flexibility commercially viable. That means the proposition designs that get people to participate, the baselining and settlement mechanics that make it work operationally, and the system operator and government relationships that shape the markets around it.

Throughout Crowdflex my team have directly consulted on baselining improvements to BAU services and quantified the implicit versus explicit flexibility capacity avaialble from now until 2030. I feel grateful to have had exposure to these themes in a mature flexibilty market, but recognise more than ever that there is a lot still to do to drive the levels of consumer-led flexibility that many governments around the globe are striving for.

Before Crowdflex, I was Head of Partnerships at Connected Kerb and an Account Executive at Wallbox Chargers in Barcelona - giving me the full commercial chain from EV charging infrastructure through to grid flexibility markets.

I hold an MSc in Energy, Environmental Technology & Economics from City, University of London and an MEng in Chemical Engineering from Swansea University. My dissertation on demand-side response for electrically heated homes won the Fuellers Charles Stephenson Clark Award.

I'm now based in Spain, and actively looking for my next challenge. I'm currently open to full-time, contract or advisory.

If you're working on consumer energy propositions, flexibility market infrastructure, or EU market development in the energy transition space, I'd love to chat further.
  • English

    Native or bilingual

  • Spanish

    Fluent

Can work on-site
Madrid (up to 50km)

Experience

  • OVO Energy
    - Innovation/Programme Lead – Energy Systems & Flexibility
    April 2024 - Today (2 years and 2 months)
    London, UK
    • ● Led strategic innovation programmes focused on energy retail transformation and flexibility, supporting the shift toward decentralised and data-driven energy systems.
    • ● Applied structured problem-solving and analytical frameworks to design new customer propositions and operating models.
    • ● Developed business cases and strategic recommendations, presenting outputs to senior stakeholders.
    • ● Worked with regulators and system operators to interpret policy and market changes, translating them into commercial strategy.
    • ● Coordinated multidisciplinary teams, ensuring delivery of complex transformation initiatives.
  • Connected Kerb
    Head of Partnerships
    September 2021 - January 2024 (2 years and 4 months)
    London, UK
    • ● Developed and executed commercial strategy for EV infrastructure deployment, supporting the transition to electrified and decentralised energy systems.
    • ● Built and delivered business cases for large-scale projects, including financial and operational considerations.
    • ● Managed stakeholder relationships across public sector, utilities, and private partners.
    • ● Contributed to go-to-market strategies and customer propositions in a rapidly evolving energy landscape.
  • Wallbox Chargers
    Account Executive
    November 2020 - August 2022 (1 year and 9 months)
    London, England, United Kingdom
    • ● A real "hunter" sales role during a hyper scale up phase, and a first introduction of the link between EV charging and smart energy consumption
    • ● Liaising with engineers, marketing and inside sales to maximise lead generation and conversion.
    • ● Set up new strategic partnerships to gain market share and build the brand.

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Education

  • Energy, Environmental Technology and Economics
    City of London University
    2025
    Master of Science
  • Chemical Engineering
    Swansea University
    2016
    Master of Engineering

Certifications

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