About Us

SolarWat is an Israeli startup that developed new generation of a proven and patent-protected solar system that provides significantly higher energy yield under all possible lighting and environment conditions, double system lifespan, higher IRR at decreased system cost per watt.

The system is operational on the company field-site for more than three years without a single malfunction.

SolarWat products in pre-certification stage for commercialization.

=> SLW is disrupting the trade off
between cost and efficiency


Unique benefits of the last developed SolarWat System compared to commonly used and Optimized PV

Our Technology

The SolarWat technology is an innovative solar panel that has been developed to eliminate the mismatch effect between cells and reduce inner panel losses. When a certain solar cell is shaded (or non-functioning), the remaining solar cells within the array continue providing their maximum electrical current and thus the entire panel provides the maximum possible power yield. In addition, as result of reducing significantly of panel inner losses the panel power output increased substantially by two general reasons: a) smaller current corresponds to smaller inner-panel conduction losses; b) improvement of cell fill factor (FF).

SolarWat innovation delay cells aging, avoids hot spot effect, minimizes the effect of malfunctioned or broken solar cells, or disconnected soldering points that substantially increases the energy yield, lifespan of the panel, panel reliability, decreases energy derating during lifespan of the panel and allows for higher yield under varied shading conditions and at low sun angle, therefore maximizing the energy produced per given area (by allowing to place panels closer to each other, disregarding self-shading).

The SolarWat Panel may be implemented with all types of solar cells (mono/polycrystalline, heterojunction, transparent-conductor PV cells, bifacial and thin film technology) and add entire advantages of our technology to each one of the cells types. SolarWat panel manufacturing process is similar to the Regular Panel process and uses the same materials.

Seal of excellence was awarded by European Commission, the EU Framework Programme for Research and innovation 2014-2020.   See more ...

Comparative tests conducted by the Fraunhofer Institute (the largest organization for applied research in Europe) on previous SolarWat system model, demonstrate that SolarWat outperforms conventional and optimized systems.

The report issued by the Fraunhofer Institute shows that the SolarWat based PV system produces much higher power yield than standard PV systems:

  • Under different partial shading scenarios, the SolarWat advantage is between 26.5% - 1780% more energy
  • In full sunshine without any shading SolarWat produces between 4.3% - 6.2% more energy

With SolarWat, the hotspot effect is completely eliminated. Hotspots are a major cause of energy loss over time and accelerate the aging process of PV systems.

In addition SolarWat developed an Electronic Power Optimizer and a Remote-Control and Monitoring Cloud-Based System as add-ons components. For roof-top applications it may be considered to use SolarWat panel with all components or just with part of them, according to relevant applications and cost requirements.


SW module with a single cell
shaded to provoke a hotspot
REG panel with a single cell
shaded to provoke a hotspot
SW_no_hotspot REG_hotspot

Source: RETC report .


SolarWat Test Site in Even Yehuda, Israel.

 The SolarWat system offers:

  • Higher real-world return on investment (ROI)
  • The only technology that increases the power yield by 10% of a utility scale system, and reducing the system’s €/W
  • Hundreds of percent more yield under partial shading - best for densely populated areas and for commercial / residential / BIPV applications
  • Greater energy density per unit area
  • Higher energy yield over systems’ life of operation.
  • Doubling lifespan of PV systems
  • Better reliability
  • Especially beneficial for European climate and Northern territories
  • Very good for southern regions
  • Flexibility to implement with various solar cells and inverter technologies
  • Diverse applicability - from utility scale, residential and commercial to BIPV, sidewalks and road PV paving, spacecraft and more.

We have assembled a world-class team of solar technology entrepreneurs

flying birds

For further information and up-to-date status, please contact us.