RST CleanTech Solutions

What RST CleanTech Solutions does

RST CleanTech Solutions, founded in 2013 and headquartered in Tel Aviv with US operations based in Tarzana, California, manufactures the NightWash automated solar panel cleaning system. The product uses a patented nozzle-and-clip water delivery architecture and a patented self-cleaning electrolysis filtration system to distribute soft, chemical-free water across panels at night, with no moving parts, brushes, or robots. Operation is controlled via a smartphone application, and the system is offered in four variants sized for residential (up to 125 panels), commercial (100 kW-5 MW), agricultural (100 kW-10 MW), and utility-scale (10 MW+) installations.

The company monetizes through one-time hardware sales and installation services delivered directly or via a network of regional distributors in Mexico, Brazil, Spain, Morocco, Croatia, and the Middle East, complemented by solar installer referral channels. Pricing is not publicly disclosed but is structured as a perpetual license with no recurring fees, and the company cites a levelized cost of under $0.01 per panel per cleaning over a 25-year horizon versus $0.35-$3.00 per panel for manual cleaning.

As of the most recent operating disclosures, RST reports 4,000+ cumulative projects and 2,000,000+ panels cleaned nightly across its global footprint. The team size is reported at 1-10 employees, and the company remains privately held with no disclosed institutional funding, relying on founder-led regional subsidiaries in the Middle East, North America, and Latin America. Third-party validation includes a DNV-GL summer study showing nearly 20% production improvement (projected to exceed 30% annually) and certification by Chile's Agency of Sustainable Energy.

Name

RST CleanTech Solutions

Legal name

RST CleanTech Solutions

Website

https://rst-cleantech.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

1–10 employees

Short description

RST CleanTech Solutions, founded in 2013 in Tel Aviv, manufactures the NightWash automated solar panel cleaning system — a no-moving-parts water irrigation platform with patented nozzle and filtration technology, sold to residential, commercial, agricultural, and utility-scale solar operators globally.

Ownership category

akta.pro rank

Product category

Solar Panel Cleaning Systems

NAICS

Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Solar Panel Cleaning (HSAEAJAL)

Keywords

• Automated solar panel cleaning
• Solar O&M equipment
• Soiling loss prevention
• Photovoltaic maintenance systems
• Solar panel wash systems

Headquarters

HQ city

Tel Aviv

HQ country

Israel

HQ region

Middle East

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. NightWash Hardware System Sales: RST sells automated solar panel cleaning systems as a one-time hardware product. Systems are installed during construction or retrofitted to existing projects. The levelized cost per cleaning reduces to less than $0.01 per panel over 25 years, making it highly cost-effective compared to recurring manual cleaning services.
2. Installation and Support Services: Professional installation services provided through trained channel partners and direct company teams. Includes training and ongoing support for installers and system owners.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels7 records

Core offering

RST CleanTech designs, manufactures, and sells the NightWash™ automated solar panel cleaning system, a hardware platform with no moving parts that uses patented low-pressure water irrigation and on-site electrolysis filtration to deliver soft, chemical-free water to solar panels on a scheduled, nighttime cycle. The system is controlled via a smartphone app and is sold as a one-time hardware purchase with professional installation, available in residential, commercial, agricultural, and utility-scale configurations.

Product overview

RST CleanTech Solutions offers the NightWash™ automated solar panel cleaning system - a single core product line available in four variants (Residential, Commercial, Agricultural, and Utility) designed to eliminate soiling losses and maximize solar energy production. The system uses patented water irrigation technology with no moving parts, cleans panels at night with soft filtered water, and is controlled via a smartphone app. All variants share the same core technology platform and can increase energy production by up to 30%.

Differentiator

Problem solved

Functional benefit

Brands

• NightWash: Fully automated solar panel cleaning system with no moving parts, controlled via smartphone app, cleans panels at night using filtered water

Products and services

• NightWash™ Automated Solar Panel Cleaning System Fully automated solar panel cleaning system with no moving parts, controlled via smartphone app. Cleans panels at night using filtered, chemical-free water delivered through patented clip-on nozzles and HDPE tubing, increasing energy production by up to 30% and protecting panel warranties.
• NightWash™ Residential System Automated cleaning system designed for residential rooftop solar installations covering up to 125 panels. Controlled via mobile app, uses soft filtered water with no brushes or robots, and is suitable for steep-roof properties.
• NightWash™ Commercial System Automated cleaning solution for commercial rooftop and ground-mount solar installations ranging from 100 kW to 5 MW. Uses the patented low-pressure water irrigation system with no moving parts and is operated via smartphone app.
• NightWash™ Agricultural System Automated solar panel cleaning system for agricultural operations ranging from 100 kW to 10 MW across ground-mount and rooftop configurations. Uses patented irrigation technology to wash panels with pure, chemical-free water that is safe for use around crops and livestock.
• NightWash™ Utility System Automated cleaning system for utility-scale solar arrays of 10 MW and above. Compatible with all ground-mount, single-axis, and dual-axis tracking systems and operated remotely via smartphone app to maximize ROI and stabilize OPEX costs.

Quantifiable outcome

• Up to 30% energy production increase through automated cleaning
• +5 more outcomes

Named customers9 records

Segments6 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Six partnerships are on record, tiered core and major.

• SMG Global SA de CVcoreChannel Partner/ Reseller/ DistributorRegional distributor for Mexico market. Located in Aguascalientes, Mexico. Handles sales and distribution of RST NightWash systems in Mexico.
• Bazy Trading & ContractingcoreChannel Partner/ Reseller/ DistributorRegional distributor for Middle East market. Handles sales and distribution of RST NightWash systems in the Middle East region.
• Solser Consultoria LtdacoreChannel Partner/ Reseller/ DistributorRegional distributor for Brazil market. Located in Sinop, Brazil. Handles sales and distribution of RST NightWash systems in Brazil.
• DefiobiocoreChannel Partner/ Reseller/ DistributorRegional distributor for Morocco market. Located in Casablanca, Morocco. Handles sales and distribution of RST NightWash systems in Morocco.
• Solaris PonscoreChannel Partner/ Reseller/ DistributorRegional distributor for Croatia. Handles sales and distribution of RST NightWash systems in Croatia.
• DNV GLmajorStrategic or Co-development PartnerIndependent technical review partner that conducted rigorous 10-week summer study comparing RST-cleaned panels vs non-RST panels. DNV GL concluded RST improved production by nearly 20% over study period and would result in over 30% increase over full year.

Scale indicators7 records

Recent moves6 records

Expansion highlights3 records

Broad incumbents

• ENGIE: Global utility and renewable energy developer with a large utility-scale solar portfolio and in-house O&M operations. Comparable as a target enterprise customer for utility-scale NightWash deployments and as a broad incumbent able to bundle cleaning into vertically integrated solar O&M contracts.
• Clearway Energy Group: US operator of utility-scale solar and wind assets. Comparable as a target enterprise customer for RST's 10MW+ systems and as a broad incumbent whose O&M procurement decisions shape the addressable market for automated cleaning at scale.
• Sunrun: Largest US residential solar installer with national service operations. Comparable as a high-volume residential channel partner for RST's up-to-125-panel systems and as a broad incumbent whose customer base overlaps with RST's residential segment.
• First Solar: Largest US-headquartered utility-scale thin-film PV module manufacturer and project developer. Comparable as a major utility-scale solar customer (and potential OEM partner) for RST's 10MW+ cleaning systems, and as a broad incumbent whose scale and procurement power shape cleaning-solution standards.
• SunPower (Maxeon Solar): US-headquartered residential and commercial solar panel and installer business. Comparable as a target customer/channel for NightWash—SunPower's premium residential and commercial customers face the same soiling-loss problem RST solves—and as a broad incumbent adjacent in the solar value chain.

Emerging players

• Akuo Energy: France-headquartered independent renewable energy developer with solar, wind, and storage projects across Europe, the US, and emerging markets. Comparable as a target utility-scale customer and as a smaller but innovative developer likely to be receptive to automated cleaning technology.

Direct peers

• Ecoppia: Israel-based competitor offering robotic, water-free automated solar panel cleaning for utility-scale PV plants. Most directly comparable peer to RST—same target customer (utility-scale and large commercial), same automated-cleaning value proposition, with the Israeli R&D base making the technology overlap particularly close.
• NSS Group: Provider of solar panel cleaning services and robotic systems across Europe and MENA. Comparable as a competing automated-cleaning supplier targeting the same utility and commercial O&M buyers, with overlapping geographic reach in Spain and Morocco.
• PV Hardware (PVH): Spanish solar tracker and Balance-of-System provider that has expanded into solar panel cleaning solutions compatible with its tracker systems. Comparable because PVH bundles cleaning into tracker sales—an emerging distribution model that competes with RST's independent-system positioning.
• SolarCleano: French manufacturer of autonomous and robotic solar panel cleaning machines for ground-mount and rooftop arrays. Competes head-to-head with RST in the same utility, commercial, and agricultural segments, with the main point of differentiation being robotic vs. water-irrigation cleaning methodology.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/rst-cleantech
• Xx.com/RSTCleanTech

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about RST CleanTech Solutions