⚡️Hello, and welcome

This domain used to belong to the brilliant engineer working to bring Tesla's legendary turbine power generation technology to the People, Jeremiah Ferwerda. Please support him by signing up for his patreon here: Jeremiah's Patreon.

You can also find his work and live demonstrations of working Tesla turbine he's proto-typed on his youtube channel. Jeremiah's YouTube.


This is a fan maintained website, whose only purpose is to help drive attention and support to Jeremiah and his team in progressing this incredible project. With the support contributed, the project has been promised to be open-sourced and Jeremiah appears to be 100% commited to seeing this through. There are many mentions of deals being offerred to the project, however Jeremiah's turned them all down as their interests do not align with his goal. Deals that would potentially take the project private, or worse, shelved by companies with no interest in open-sourcing this technology and it's extremly encouraging to see Jeremiah openly mentioning turning such offers down.

Details on my understanding of Jeremiah's Tesla Turbine

To fan boy out a little, want to summarize many key pieces of information related to this project that took me a while to understanding after watching most all publicly available content on Jeremiah's work. (And other behind the scenes members of his team of course.)

Mechanics of Ferwerda's Tesla Turbine Designs

Ferwerda's advancements often feature multi-stage configurations and specialized operating modes, such as cryophorus mode for cold steam testing. In this setup, the turbine sits between a hot tank (evaporating water into steam) and a cold tank (condensing it), all under vacuum. The temperature differential creates a pressure gradient, driving steam flow through the turbine without external pumps. For instance, in a 6-inch diameter prototype, the hot tank reaches 180–200°F while the cold tank starts at 57–60°F, building a 120°F differential. Vacuum levels are adjusted (e.g., -1 PSI below ambient), and materials like copper in the cold tank enhance condensation and heat transfer. This results in high rotational speeds—over 42,000 RPM without load, with peripheral speeds exceeding Mach 1 (supersonic)—while minimizing vibrations and noise through bearing refinements.

In his two-stage supersonic prototypes (e.g., with 28mm rotors), the first stage uses centripetal flow (inward spiraling) to propel the second stage's centrifugal flow (outward). The first stage can hit 234,145 RPM, while the second reaches 90,217 RPM. A critical mechanic is the "fluid gearbox" concept, requiring at least a 3:1 disk surface area ratio between stages (e.g., 2 disks in stage 1, 6 in stage 2) for optimal viscous coupling and vacuum creation. Without this, back pressure builds (up to 30 PSI at high RPMs), causing resonance, potential rotor-casing contact, and inefficiencies. When optimized, the second stage generates enough vacuum to self-sustain using atmospheric pressure alone, creating a symbiotic amplification where stages boost each other. Telemetry tools track RPM, and tests show dramatic pressure drops (50–100% performance boost by reducing exhaust to ~1 PSI from 15 PSI).

These mechanics position Ferwerda's turbine as a potential replacement for less efficient engines, with applications in renewable power via low-grade heat sources. His work continues through prototypes, videos, and community-funded refinements, aiming for practical, scalable energy production.

The Tesla Turbine: Basics and Mechanics

The Tesla Turbine, patented by Nikola Tesla in 1913 (U.S. Patent 1,061,206), is a unique bladeless turbine that harnesses fluid dynamics differently from traditional designs. At its core, it consists of a series of thin, parallel disks (typically made of metal or composite materials) mounted on a central shaft within a cylindrical casing. The disks are spaced closely apart—often between 0.4 mm and 1 mm—to optimize performance.

Key Mechanics:

The design's simplicity—no blades means less wear from erosion or cavitation—makes it robust for harsh environments. However, challenges include managing turbulence at high speeds and optimizing for variable loads.

Schematic of a Tesla Turbine showing the disk assembly, fluid inlet, and spiral flow path in cross-section. Cross-sectional view illustrating the boundary layer interaction between fluid and disks.

Jeremiah Ferwerda's Implementation of the Tesla Turbine

Jeremiah Ferwerda, an independent inventor and founder of My Tesla Power (formerly iEnergySupply), has been advancing Tesla's design since dropping out of mechanical engineering studies to focus on experimental energy technologies. His work emphasizes practical, renewable energy applications, often demonstrated at conferences like the Energy Science & Technology Conference (ESTC). By 2025, Ferwerda's prototypes have evolved into multi-stage systems capable of generating significant power, with a focus on efficiency through heat management and vacuum integration.

Key Implementations and Innovations:

Jeremiah Ferwerda demonstrating a cold steam Tesla Turbine prototype during testing. Close-up of a multi-stage Tesla Turbine prototype developed by Ferwerda, showcasing renewable energy integration.

Ferwerda's approach symbiotic amplification—where stages boost each other via vacuum—positions his turbines as potential alternatives to inefficient engines, with ongoing refinements funded by community support.

Comparison to Conventional Turbines

Conventional turbines (e.g., impulse like Pelton or reaction like Francis/Kaplan) use bladed rotors to convert fluid energy via direct impact or pressure changes. The Tesla Turbine diverges by using friction-based boundary layers, leading to distinct advantages and drawbacks.

Aspect Tesla Turbine Conventional Turbines (Bladed)
Design Complexity Simple: Few moving parts (just disks and shaft), easy to manufacture and maintain. Complex: Blades, stators, and seals increase parts count and costs.
Efficiency High theoretical (up to 95%), but practical 20-60%; best at high RPM with viscous fluids. Weak friction limits low-speed/gas performance. Often 80-90% efficient; better for gases and variable speeds, but erosion reduces longevity.
Durability Excellent: No blades mean resistance to erosion, particulates, and cavitation; handles dirty/multiphase fluids. Prone to blade damage from impurities or high speeds; requires clean fluids.
Speed and Power High RPM (10,000-200,000+); good for small-scale, high-torque apps, but scaling for large power is challenging. Lower RPM; easier to scale for megawatt outputs in power plants.
Cost and Applications Low production cost; ideal for renewables, pumps, or micro-generation. Bidirectional rotation. Higher cost; dominant in large-scale hydro, steam, or gas turbines for electricity.

Overall, the Tesla Turbine excels in niche, low-maintenance scenarios but lags in mainstream high-power applications due to efficiency hurdles with gases. Ferwerda's implementations bridge some gaps by enhancing vacuum and staging for better gas handling.