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ISOBAR

A closed hydraulic process for the generation of electrical energy from pressure differentials

1–3 MW per module

Design target, subject to engineering validation and a physical proof of concept.

ISOBAR guides water through a closed conduit shaped to create and use differences in pressure. The controlled movement of the water drives a turbine and generator.

Modules are designed to be installed alone or in groups, where site conditions and permits allow.

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What it is designed to offer

Modular: Repeatable units, so a project can start small and grow unit by unit
Local: Generation near the point of use, for utilities, industrial sites, ports and islands
Predictable: Long-term energy contracts at a fixed price, structured under the applicable regulation

These are design aims. They become claims only once measured and independently verified.

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Proof of concept

The next step is a physical test rig at 1:50 to 1:100 scale, instrumented to measure pressure, flow, torque and electrical power, with an independent review of the results.

Tav. V. Test rig, schematic: header tank, gauges P1 and P2, flow meter Q, turbine, torque sensor, generator and data logger.

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Development status

Patent	UK application GB2603682.2, filed 18 February 2026
Applicants	Dan Capriles Parra and Martina & Parra Limited
Target output	1–3 MW per module
Work completed	Concept geometry, claim structure, prior-art analysis and CFD studies
Next step	Test protocol, turbine selection and a scale proof-of-concept rig
Commercial models	Feasibility and site studies, project development, licensing, module supply and long-term energy contracts

Performance depends on turbine selection, structural design and measured results. No output is claimed until demonstrated.