The independent energy advisory firm with the technology backbone.
Energy markets move faster than generalist advisory can follow. That gap: between institutional capital and technical reality, is where we operate.
Battery storage is our specialism. We work across solar PV, wind, hybrid, EV charging and commercial & industrial assets, utility-scale and behind the meter.
Three convictions we were built on.
Independent in judgment, backed for scale.
Our recommendations answer only to the client's asset: technology-agnostic, with no intermediation fees and no obligation to route clients to any offtaker. The institutional strength of Octopus Energy Generation behind us brings scale and certainty; it does not condition our advice.
Advisory with a Software Spirit.
We don't just advise; we architect systems. Every renewable asset is a node in a complex, shifting grid. To succeed, an asset must be optimised not just for today's price, but for the next decade's volatility.
Bridging the Gap.
Our approach merges traditional technical due diligence with advanced simulation. We bridge the gap between engineering reality and financial ambition, backed by proprietary analytics.
Five commitments that define how we work.
Independence of judgment
Objectivity, backed for scaleWe issue judgment based on proprietary data and models. We are technology-agnostic, take no intermediation commissions and never steer a client towards any offtaker. Octopus Energy Generation's backing gives us institutional scale, and our recommendations respond only to the client's asset.
Analytical Excellence
Every number must withstand scrutinyWe model complex scenarios with quantitative depth. Rigour is not a differentiator we advertise: it is the baseline our clients verify in every data room. Every analysis we deliver must withstand data room scrutiny.
Applied Innovation
Technology that improves real decisionsWe build proprietary tools because the market has problems that generic solutions don't solve. Our technology is born from real client challenges, not sector trends. Innovation without application is just cost.
Partner Mindset
Commitment as if the risk were oursWe think in terms of portfolio and lifecycle, not single projects. Our client's asset success is the only KPI that truly matters. We document, explain and defend every analysis as if the outcome were also ours.
Rigour & Transparency
We only sign what we can defendTechnical and financial clarity generates trust. And trust generates bankability. Every deliverable we produce is built to withstand demanding questions. If something isn't sufficiently substantiated, we don't sign it.
Key moments of One Hub Energy.
Founded in Barcelona in 2020. Today a team of 34 professionals turning knowledge and data into tools for strategic energy decisions.
The project is launched
- The One Hub Energy project is launched as a hub of experts in energy, markets and technology.
- Activities launched with a team of 5 employees and 9 mandates signed, establishing key framework collaborations.
- First innovative battery storage application project.
- Services provided to structure the EPC of a 200 MWp portfolio.
Independent storage advisory takes off in Iberia
- Key roles incorporated to expand services.
- First advisory services for independent BESS assets in Iberia.
- Launch of the first BESS developments (100 MW).
- Public funding granted.
Strategic business lines defined
- Launch of the One Hub BESS financial model to expand consulting services.
- Public funding secured to develop One Flex, the BESS and flexible-asset optimiser.
- First multi-technology consulting engagement for 400+ MW (PV + wind + BESS).
- Start of the project development division.
Team consolidation
- Consolidation of BESS consulting services and public grant applications.
- Business model and development advisory for a confidential industrial client: collective self-consumption on third-party rooftops.
- First full-lifecycle project reaches operation: integrated services from origination to COD.
Growth to strengthen the structure
- Launch of the BESS suite project to digitalise consulting tools and expand the market.
- Strategy defined to become a BESS construction aggregator (integrated supply chain and EPCM).
Backed by Octopus Energy Generation
- September 2025: One Solar evolves to become One Hub Energy.
- Octopus Energy Generation becomes our strategic partner, providing strategic and financial backing.
- Institutional certainty and technological scale for energy investment decisions across Europe.
The platform era
- One Hub Analytics opens to the market as a commercial SaaS platform: the same engine that powers our consulting services.
- Launch of the One Hub Energy webinar and industry events programme.
- New digital home: onehub.energy relaunched.
Discipline behind the judgment.
Leadership & boardStrategic governance
Long-term roadmap aligned with market evolution
Risk-aware operations
Structured compliance across every engagement
Measurable delivery
KPI-driven performance on every project
Protected knowledge
Documented methodologies, secure data handling