Jonathan Field
Founder & lead modeler. Jonathan specialises in power-systems optimization and data-driven decision support — from capacity expansion and dispatch to storage sizing and microgrids.
We build open, auditable energy system models that decision-makers can trust. Our focus is speed, clarity, and ownership: models you understand, code you control, and results you can act on.
After years wrestling with slow, opaque, license-bound tools, we wanted a better way. Open-source modeling (PyPSA, Pyomo, Python) lets us move faster, be transparent, and tailor the model to your system — without lock-in or black boxes.
From legacy bottlenecks to open, collaborative modeling.
Traditional tools often mean weeks of setup, license friction, and black-box assumptions. We believe modeling should be iterative, inspectable, and accessible to your whole team.
Using Python, PyPSA, and Pyomo, we co-develop models with you, validate against historicals, and communicate uncertainty clearly — so decisions are faster and better.
No expensive licenses. Transparent code and assumptions. A model that fits your system and KPIs. And if you want, we’ll hand everything over and help you run it in-house long-term.
We start with discovery to align on objectives and data, build collaboratively with regular reviews, explain results and actions, then hand over or continue as your modeling partner.
Small by design, focused on outcomes.
Founder & lead modeler. Jonathan specialises in power-systems optimization and data-driven decision support — from capacity expansion and dispatch to storage sizing and microgrids.
Send a brief or book a 20-minute intro — we’ll reply within one business day.