PowerSizeTechnologies
Forward operating base at dusk with solar array, generators, battery storage, UGV and UAS, and a ruggedised laptop running the PowerSize energy network view
The virtual proving ground for better platform decisions

Power & energy analysis for
better platform decisions

Screen platforms, architectures and energy systems against the mission. Quantify range, payload, fuel, power, resilience and cost. Make the decision before committing to hardware.

PlatformsMissionsEnergyBetter outcomes
Representative interface
Trusted across government, defence and industry
Ministry of DefenceFeringGovernment of CanadaDrive System DesignDstlFlight FrameMinistry of DefenceFeringGovernment of CanadaDrive System DesignDstlFlight Frame
The problem

The battlefield is electrifying faster than its platforms can adapt

Modern platforms are being asked to do more, with less. Electrical demand is rising, logistics tails are growing, and hybridisation creates coupled trade-offs across performance, endurance and cost.

Electrical demand is risingMore sensors, EW, autonomy and effectors.
Platforms are underpoweredRetrofits are costly and limiting.
Logistics tails are growingMore fuel, more risk, higher cost.
Hybridisation is complexMany technologies, competing priorities, no easy answers.
Forward operating base at dusk: an 8x8 exporting power to a shelter, a UGV, a UAS pad and a comms mast
MissionGrid micro-grid workspace: asset library, zoned network of supply, load and flex, and a results panel over a forward operating base
The virtual proving ground

The virtual proving ground for power and energy decisions

Power and energy systems are still developed by hardware trial and error: build, test, rebuild. It takes years, and the result is still not optimal. We model the whole system in physics, from the component up to the formation, and find the optimum before any hardware is built.

  • Every architecture screened against the real mission, not a duty cycle
  • Fuel, range, payload, export power and cost resolved together
  • Resilience and endurance tested before anything is bought or built
  • Traceable results you can put in front of a procurement board
Independent coverage

Reported by the defence press

The toolchain

One toolchain. Four decision problems.

From early concept sizing to procurement and operational energy planning.

Vehicle cutaway showing engine, motor and battery inside the hull Concept interface: point selection graph and volume comparison waterfall
SWaP-C Concept

Screen every architecture and solve for package, power and cost. Strongest when retrofitting a powertrain into an existing platform.

Vehicle on a test rig, driveline losses measured Pro interface: combined system-level motor residency plot
Hidden energy losses Pro

Speed and torque maps for every component in the power and energy system, resolving the losses a first-pass sizing cannot see.

Two platforms compared on the same footprint Mobility interface: mission map, route and platform comparison
Mission endurance Mobility

Plan hybrid and electric platforms individually or in groups, scaling from sub-unit to formation, over time, distance and environment.

Vehicle, energy store, solar and satellite terminal on one grid Energy interface: microgrid supply, load and battery results
Deployed power supply Energy

Design and size static, moveable, deployable and tactical microgrids, and procure the components that build them.

How customers use PowerSize

Use the tools, or let us answer your decision in a white paper

We are power and energy engineers. We overlay the physics on any mission requirement and return fuel, resilience, logistics and EW answers that stand up to scrutiny.

Ruggedised tablet running the microgrid tool, laptop running MissionGrid, and two engineering reports: solid-state hydrogen powertrain sizing for a heavy logistics vehicle, and hybrid power options for laser weapons on Foxhound and Boxer
Software
Your engineers run the tools
  • All four tools, run against your own platforms, missions and technologies
  • Physics-based results for fuel, energy resilience, logistics load and EW signature
  • Change an assumption and the whole design space re-solves
  • Our engineers on hand to set up models and review results
  • The model stays with you and re-runs when the requirement changes
Engineering reports
We run the tools for you
  • You set the decision and the mission requirement. Our power and energy engineers run the analysis
  • True fuel, resilience, logistics and EW figures for the mission as specified
  • A signed study: the recommendation, the trade-offs and every assumption behind them
  • Evidence fit for a customer or a procurement board
  • Directional answers in hours, defensible studies in days
The evidence

Mission studies and papers

Signed studies from our power and energy engineers, each answering a platform decision against a defined mission: fuel, resilience, logistics and EW. Alongside them, the peer-reviewed physics the tools are built on.

Technical foundation sourced from peer-reviewed publications, 2023–2025.
AI and LLMs

AI can orchestrate the question. Physics calculates the answer.

QuestionNatural language
AI / LLMOrchestration
PowerSize solverValidated physics
Engineering answerTraceable
About us

Our leadership team

We are a consortium of European and U.S. powertrain and defence specialists, serving defence acquisition authorities and prime contractors. Sizing the power and energy behind the electrified force, across platforms, microgrids and mobile energy systems.

Wiktor Dotter
Wiktor Dotter
CEO & Commercial Lead
Background in strategy and business planning at multinational mobility manufacturers.
Bence Falvy
Bence Falvy
CTO & Powertrain Systems
Electrified powertrain systems engineer across hybrid and battery-electric systems. Built the screening methodology behind the reports and its verification.
James de St John-Pryce
James de St John-Pryce
Military Advisor
Military Requirements and Land Vehicles. Lt Col (ret’d), British Army. Commanded the Armoured Trials and Development Unit 2021–2024.
Nathan Rues
Nathan Rues
Engineering & Solutions Lead
Combustion and transmission engineer by background. Government defence programmes across mobile and stationary platforms, including hydrogen energy systems.