Solid-state RF systems
Bringing industrial process heating into the 21st century.
A highly efficient, virtually limitless and clean alternative to gas and other fossil fuels.
Solid-state RF process heating
High efficiency. Limitless power. Reduced emissions.
From 1 kW to megawatts — We help industry to stop burning gas. Controllable, electric process heat with built-in process data.
Deep tech, built in Switzerland
Electrifying a market that has no choice but to electrify.
1.8M CHF seed round closed with Evercurious VC, Kickfund and Axel Carbon Capital. Top 100 Swiss Startup, with core IP in impedance matching.
For machine builders and integrators
RF power you can build your machine around.
Scalable from 1 kW to megawatt levels, with full digital process control, a smaller footprint and service life beyond 100,000 hours.
SolidWatts leads the way for solid-state RF technology
SolidWatts builds solid-state radio frequency (RF) systems that turn electricity into precise, controllable industrial heat. They replace gas burners and aging vacuum-tube systems.
It's more than just power: every system delivers process data, higher efficiency and electrified, hybrid-ready heat from 1 kW to megawatts.
Lower energy cost
Energy-efficient RF systems cut energy use and operating cost.
Better process quality
Live process data for control, validation and repeatability.
Future-proof energy
Electric & hybrid-ready, with less gas dependence.
Less downtime
Solid-state reliability and long service life.
Proven performance, at industrial scale
Key numbers behind our industrial RF systems: efficiency, scalable power and long service life.
How the technology works
Controllable energy, delivered exactly where it's needed.
One modular platform, from 1 kW to megawatts
Our solid-state RF systems are built from standard 27.12 MHz power modules of 1 kW and 10 kW, stacked in 19-inch racks. A common control and communications module manages every amplifier in its stack, and multiple stacks combine to reach megawatt power levels.
The power from all modules is merged in a power combiner of our own design and delivered to the process through our application matching network. It couples the energy into the material with minimal loss, so the heat is generated directly inside the product: fast, uniform and repeatable.
Overview of applications
From welding to drying. See where solid-state RF replaces combustion and legacy tube generators.
Success stories
How collaboration with CERN adds value to SolidWatts clients
CERN runs the world's largest solid-state amplifier installation, over 2 MW. As a CERN Technology Partner, we develop and test our technology at CERN facilities.
MBA students uncover process efficiencies
Six IMD MBA students found use cases where dielectric heating can replace two processes with just one, saving energy, CAPEX and OPEX.
Microwaves for the regenerative economy
Tech4Regeneration selected SolidWatts for its 9‑month accelerator programme: one of 20 startups chosen from 68 applicants.
Why not gas, why not vacuum tubes
The same process heat, three different technologies. If you plan to replace vacuum tube RF generators, this is where solid-state RF pulls ahead.
| Criterion | SolidWatts solid-state RF | Gas burner | Vacuum-tube RF |
|---|---|---|---|
| Energy efficiency | >85% | Losses through flue gas and heat transfer | Typically 50–70% |
| Energy cost | Electricity only, >85% efficiency, minimal maintenance | Fuel and CO₂ costs, heat lost with the flue gas | Lower efficiency plus regular tube replacements |
| Volumetric heating | Yes, heat is generated inside the material | No, heats the surface first, then conducts inwards | Yes, but limited power and control |
| Controllability | Full digital control, kW-level precision | Slow, indirect, hard to modulate | Coarse, analogue control |
| Process data | Live data per cycle, ready for validation | None from the burner itself | Limited |
| Service life | >100,000 hours | Burner maintenance, combustion parts | Tube replacement every few thousand hours |
| Emissions | Grid-dependent, zero on site | Direct CO₂ on site | Grid-dependent |
| Footprint | Compact, modular, scalable | Burner, ducting, exhaust | Large cabinets, high voltage |
Latest posts
Powering change: 1.8M Seed Round Fuels the Future of Industrial Efficiency
SolidWatts is proud to announce the closure of 1.8 million CHF Seed funding to accelerate the development and market entry of its innovative industrial process heating technology.
Pre-seed funding completed
SolidWatts is thrilled to announce the successful closing of its pre-seed investment round of €850,000. The round was led by Evercurious VC, with the participation of Switzerland's Kickfund and prominent angel investors.
The importance of Impedance Matching – Part 1
In this blog post we explain, in simple terms, the concept of impedance matching and why it is important in the context of dielectric heating with radio frequency.
Ready to electrify your process heat?
Tell us about your process. We'll show you what solid-state RF can do and route you to the right specialist.
1010 Lausanne,
Switzerland
