Renewable Heat Solutions

Solar Thermal Systems Supplier Saudi Arabia — Parabolic-Trough, ETC & Flat-Plate Collectors, Thermal Storage In Stock

Gulf Union Ozone supplies complete solar thermal systems for Saudi industrial facilities, government buildings, medical cities, and construction camps across the Kingdom. Our portfolio covers parabolic-trough concentrating collectors (single-axis tracking, 100–400°C process heat, for CSP pilot projects and industrial drying and steam applications), evacuated-tube collectors (all-glass and heat-pipe ETC, 60–200°C, vacuum envelope eliminating convective loss even at 46°C Saudi ambient) and flat-plate collectors (selective-coat aluminium-frame panels, 40–80°C, cost-effective for camp and building water heating). Solar circuit heat exchangers — stainless 316L brazed plate and shell-and-tube — isolate potable water from glycol circuits and are designed for Saudi hard-water conditions. Pressurised and atmospheric thermal storage tanks from 100 L to 10 000 L in SS 316L with polyurethane insulation suit Saudi 50°C ambient. Single-axis and dual-axis tracking systems for concentrating collectors are programmed for Saudi latitude and longitude to maximise annual energy yield. Propylene glycol solar fluid with inhibitor package for all system sizes. Annual solar yield calculations using KACST TMY solar radiation data. SASO solar certification, ISO 9001:2015 (CR 4030570569).

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Solar thermal systems — parabolic-trough, ETC and flat-plate collectors for Saudi Arabia — Gulf Union Ozone Jeddah

Solar Thermal Product Categories

Product Types in Stock

Gulf Union Ozone carries six solar thermal product families for Saudi industrial process heat, building water heating, and concentrating solar applications — with ISO 9806 and SASO performance certification and full system design support using KACST solar radiation data.

Type 01

Parabolic-Trough Collectors

Concentrating linear-focus parabolic-trough collectors tracking the sun on a single axis; generate process heat at 100–400°C for Saudi industrial applications including absorption cooling, evaporation, pasteurisation and CSP pilot projects. Aperture widths 1 m, 1.5 m and 2 m; receiver tube (HCE) with selective coating and glass vacuum envelope; thermal efficiency 65–72% at design point. Aluminium or steel parabolic mirror structure with single-axis hydraulic tracking drive and sun sensor. Heat transfer fluid: synthetic thermal oil (Dowtherm A or equivalent) to 400°C, or direct steam generation (DSG) to 270°C at 55 bar. Suitable for Saudi Aramco and KACST renewable energy pilot projects. Mirror soiling loss calculated using site-specific PM10 data; robotic dry-brush cleaning vehicles available for large arrays. Supplied as collector loop, field piping, expansion vessel and heat exchanger package.

Type 02

Evacuated-Tube Collectors

All-glass evacuated-tube (ETC) and heat-pipe ETC arrays for 60–200°C applications in Saudi Arabia; vacuum envelope reduces heat loss to near zero even at 46°C summer ambient and stagnation temperatures above 200°C, making ETC the most efficient collector type for Saudi climate conditions. All-glass tubes: 58 mm OD × 1 800 mm length, borosilicate, selective-coat absorber, copper manifold header. Heat-pipe ETC: copper heat pipe inside evacuated tube, copper condensing manifold, no water in tube for freeze and stagnation protection. Suitable for solar water heating, absorption cooling, industrial process heat, desalination pre-heating. Frame in galvanised steel, aluminium or SS 304; roof-mount, ground-mount and wall-mount brackets available. Replacement tubes, manifolds and expansion vessels stocked in Jeddah for fast maintenance across Saudi Arabia.

Type 03

Flat-Plate Collectors

Selective-coat absorber flat-plate solar collectors in powder-coated aluminium frames with 4 mm tempered solar glass; 40–80°C operating temperature; cost-effective for building and camp water-heating at Saudi construction sites, accommodation compounds and small commercial facilities. Absorber: laser-welded aluminium fin-and-tube or copper riser-and-header with TiNOX or Sunselect selective coating; absorptance ≥0.95, emittance ≤0.05. Insulation: 50 mm mineral wool or CFC-free foam; back and side losses below 0.15 W/m²K. Frame sizes: 2.0 m² and 2.5 m² gross area. Stainless 316L sensor pocket for differential temperature controller. ISO 9806 performance certificates from accredited test institute; SASO-accepted for Saudi National Renewable Energy Programme (NREP) projects. Mounting kits for flat roof, pitched roof and open-field installation supplied.

Type 04

Solar Heat Exchangers

Stainless 316L brazed plate heat exchangers (BPHE) and shell-and-tube heat exchangers for isolating the potable hot-water circuit from the solar glycol primary circuit; designed for Saudi hard-water conditions (high TDS, calcium hardness) and high-temperature service. Brazed plate heat exchangers: AISI 316L plates, copper braze, compact size, high heat-transfer coefficient; available for systems from 2 kW to 500 kW thermal duty. Shell-and-tube heat exchangers: SS 316L tubes and tube sheet, carbon steel or SS shell, TEMA B design, for larger solar thermal systems and industrial process duties. Glycol-side design pressure 10 barg; water-side design pressure 10 barg; design temperature 200°C. Sized for Saudi 55°C cold-water inlet worst case; pressure-tested and supplied with material certificates. Compatible with propylene glycol and synthetic thermal oil heat-transfer fluids.

Type 05

Thermal Storage Tanks

100–10 000 litre pressurised and atmospheric solar hot-water storage tanks with closed-cell polyurethane foam insulation (80 mm thickness) and stainless 316L inner vessel for Saudi 50°C ambient conditions. Pressurised tanks: SS 316L inner vessel, polyurethane-insulated steel outer jacket, 10 barg design pressure, electric immersion heater backup connection, anode protection; 100–2 000 L range for residential and commercial solar systems. Atmospheric open-vented tanks: SS 316L inner vessel, atmospheric vent, 3 000–10 000 L for large camp and industrial solar water-heating systems. All tanks fitted with temperature sensor pockets for differential controller, solar coil connection (DN 25 or DN 40 flanged), cold-water inlet and hot-water outlet. Skid-mounted buffer tanks with insulated pipework manifold available for multi-collector field integration. Tank surfaces and insulation rated for Saudi 55°C ambient outdoor installation.

Type 06

Solar Tracking Systems

Single-axis and dual-axis tracking actuators and control systems for parabolic-trough, Fresnel and concentrating flat-panel solar collectors; programmed for Saudi latitude and longitude to maximise daily and annual energy yield. Single-axis trackers: linear actuator or slew-drive, north–south horizontal axis, tracking east–west, step-angle 0.1°; suitable for parabolic-trough and linear Fresnel collectors; increases energy yield 25–35% versus fixed-tilt collectors. Dual-axis trackers: azimuth and elevation drives, full two-axis solar tracking for concentrating dish and CPV collectors; tracking accuracy ±0.1°. Control system: programmable solar-position algorithm (SPA) with GPS coordinates and date/time input; wind stall and night-stow safety functions. Actuator materials: anodised aluminium and SS 316 for Saudi dust and coastal environment. IP67 controller housing; RS-485 Modbus communication to SCADA. Emergency manual override and back-drive protection.

Product Catalog

Complete Solar Thermal Systems Range — 26+ Products

All collectors supplied with ISO 9806 performance certificates. Systems designed using KACST TMY solar radiation data. SASO accepted for Saudi National Renewable Energy Programme. ISO 9001:2015 QMS (CR 4030570569).

Collector / Component Type	Operating Temperature	Aperture Area	Efficiency	Application
Flat-Plate Collector — Al Frame, Copper Absorber, Selective Coat	40–80°C	2.0 m² gross	η₀ 0.79 / a₁ 3.5 W/m²K	Building and camp water heating — Saudi construction sites
Flat-Plate Collector — High-Performance, Double-Glazed	40–90°C	2.5 m² gross	η₀ 0.75 / a₁ 2.5 W/m²K	Higher ambient temperature performance — absorption cooling pre-heat
ETC — All-Glass Evacuated Tube (58 mm × 1 800 mm)	60–150°C	2.0 m² per 20-tube manifold	η₀ 0.82 / a₁ 1.0 W/m²K	Solar water heating — efficient in Saudi 46°C ambient conditions
ETC — Heat-Pipe, Copper Condensing Manifold	60–200°C	2.0–4.0 m² per manifold	η₀ 0.80 / a₁ 0.9 W/m²K	Process heat and absorption cooling — stagnation-safe design
ETC — Direct-Flow, U-Pipe Configuration	60–150°C	2.0–3.0 m² per manifold	η₀ 0.81 / a₁ 1.1 W/m²K	Large-array solar fields — industrial water heating Saudi Arabia
Parabolic-Trough Collector — 1 m Aperture Width	100–250°C	1 m × L (modular)	Peak optical 68%	Small-scale industrial process heat — pilot and demonstration projects
Parabolic-Trough Collector — 1.5 m Aperture Width	150–350°C	1.5 m × L (modular)	Peak optical 71%	Medium-scale process heat — Saudi industrial facilities and CSP pilots
Parabolic-Trough Collector — 2 m Aperture Width	200–400°C	2 m × L (modular)	Peak optical 73%	Industrial steam generation and CSP — Saudi Aramco R&D and NREP
Linear Fresnel Reflector System	150–270°C (DSG)	Custom field layout	Peak optical 60–65%	Direct steam generation — rooftop and compact field industrial KSA
Thermal Storage Tank — 100 L Pressurised (SS 316L)	Up to 95°C	100 L / 80 mm PU insulation	Standing loss <2 W/m²	Residential and small commercial solar water heating — Saudi Arabia
Thermal Storage Tank — 500 L Pressurised (SS 316L)	Up to 95°C	500 L / 80 mm PU insulation	Standing loss <2 W/m²	Commercial building solar hot water — hotel, clinic, office block KSA
Thermal Storage Tank — 1 000 L Pressurised (SS 316L)	Up to 95°C	1 000 L / 80 mm PU insulation	Standing loss <2 W/m²	Large commercial and industrial solar hot water — Saudi Arabia
Thermal Storage Tank — 5 000 L Atmospheric (SS 316L)	Up to 90°C	5 000 L / 100 mm PU insulation	Standing loss <1.5 W/m²	Camp solar water supply — construction site and industrial accommodation KSA
Thermal Storage Tank — 10 000 L Atmospheric (SS 316L)	Up to 90°C	10 000 L / 100 mm PU insulation	Standing loss <1.5 W/m²	Large industrial solar heat store — process heat buffer, Saudi Arabia
Solar Heat Exchanger — Brazed Plate (SS 316L)	Up to 200°C	2–500 kW thermal duty	LMTD approach 5–10°C	Glycol-to-water isolation — solar primary to DHW secondary circuit
Solar Heat Exchanger — Shell-and-Tube (SS 316L tubes)	Up to 300°C	500 kW–5 MW thermal duty	TEMA B design	Large industrial solar process heat — thermal oil to steam/water circuit
Solar Tracking System — Single-Axis (Parabolic-Trough)	—	Per collector row (modular)	Tracking accuracy ±0.1°	Parabolic-trough and linear Fresnel solar fields — Saudi Arabia
Solar Tracking System — Dual-Axis (Dish / CPV)	—	Per dish or CPV array	Tracking accuracy ±0.05°	Concentrating dish and CPV systems — full-sun tracking Saudi Arabia
Glycol Expansion Vessel (Diaphragm, SS Membrane)	Up to 120°C	8–1 000 L / 10 barg max	—	Thermal expansion compensation — solar primary circuit pressurisation
Differential Temperature Controller (Digital, 2-Sensor)	Sensor range -30°C to +200°C	230 V / relay output / RS-485	ΔT on/off 6°C / off 2°C	Solar pump control and system monitoring — flat-plate and ETC systems
Solar Pumping Station (Pump + Flow Meter + Air Vent)	Up to 120°C glycol circuit	2–40 L/min / variable speed	—	Pre-assembled solar primary pump group — flat-plate and ETC systems KSA
Propylene Glycol Solar Fluid — 25% Concentration	Freeze to -10°C / max 150°C	20 L and 200 L drums	Food-grade PG + inhibitor	Solar primary circuit — Jeddah, Dammam and Riyadh climate zones
Propylene Glycol Solar Fluid — 35% Concentration	Freeze to -18°C / max 150°C	20 L and 200 L drums	Food-grade PG + inhibitor	Solar primary circuit — Abha, Taif and high-altitude Saudi locations
Propylene Glycol Solar Fluid — 50% Concentration	Freeze to -33°C / max 150°C	20 L and 200 L drums	Food-grade PG + inhibitor	Maximum freeze protection — high-altitude and extreme cold locations KSA
Stagnation Protection (Thermostatic Dump Valve)	Activates at 95–120°C	DN20–DN32 / stainless body	—	Overheating protection — stagnation management for flat-plate and ETC systems
Solar-Grade Tubes and Headers (Copper / SS 316)	Up to 200°C	15–54 mm OD / straight lengths and bends	—	Solar primary circuit pipework — insulated ready-to-install bundles KSA

Why Us

Why Facilities in Saudi Arabia Choose Gulf Union Ozone for Solar Thermal Systems

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Saudi Aramco R&D Experience

Supplied parabolic-trough pilot components to Saudi Aramco's Dhahran R&D centre; our team understands Saudi dust-soiling loss rates, tracking accuracy requirements, cleaning cycle economics and thermal oil selection for Kingdom operating conditions.

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SASO Solar Certification

Flat-plate and ETC collectors with SASO-accepted ISO 9806 performance certificates; required for Saudi National Renewable Energy Programme (NREP) projects and KACARE incentive schemes. Performance data from accredited test institutes available for project engineer review.

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Jeddah-Stocked Spare Parts

ETC replacement tubes, flat-plate glazing panels, collector manifolds, expansion vessels, differential temperature controllers and propylene glycol held in Jeddah for fast maintenance support. Replacement parts dispatched nationwide within 24–48 hours for Saudi operational sites.

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System Design Service

Annual solar yield, roof or field layout and simple payback period calculated using TMY data from KACST for the project site in Saudi Arabia. Preliminary design with collector area, storage volume and estimated annual energy saving provided free of charge with each RFQ.

Also Stocked at Gulf Union Ozone

Energy

Solar PV Systems

Monocrystalline and polycrystalline solar PV modules, string inverters, MPPT charge controllers and mounting structures for Saudi Arabia rooftop, carport and ground-mount photovoltaic installations.

Energy

Solar Lighting

All-in-one and split-type solar street lights, solar garden lights and solar floodlights with lithium-ion batteries and motion sensors for Saudi Arabia outdoor lighting applications.

Process Equipment

Heat Exchangers

Shell-and-tube, brazed plate, gasketed plate and air-cooled heat exchangers in SS 316L, duplex SS and titanium for oil & gas, petrochemical and process industry in Saudi Arabia.

Process Equipment

Storage Tanks & Vessels

Atmospheric and pressure storage tanks, vertical and horizontal pressure vessels in carbon steel, SS 316L and duplex SS — ASME Section VIII, BS EN 13445 — for water, chemical and oil storage in Saudi Arabia.

Frequently Asked Questions

Solar Thermal Systems in Saudi Arabia — Common Questions

Which solar collector type is best suited to Saudi Arabia's high ambient temperature?

Evacuated-tube collectors (ETC) are most efficient in Saudi conditions because the vacuum envelope eliminates convective heat loss, maintaining collector efficiency even at 46°C ambient and 200°C stagnation temperature. Flat-plate collectors are suitable for lower-temperature duties (water heating below 70°C) at lower capital cost, but efficiency drops significantly above 40°C ambient. Parabolic-trough concentrators are used for industrial process heat above 150°C. Gulf Union Ozone sizes each system using KACST solar radiation data and ISO 9806 collector performance curves.

How is dust soiling on solar collectors managed in Saudi Arabia?

Saudi dust accumulation reduces ETC and flat-plate output by 0.5–1.5% per day without cleaning. Gulf Union Ozone recommends automated or semi-automated dry-brush cleaning robots for large collector arrays, or a weekly manual water-rinse using demineralised water to prevent scale deposits. Parabolic-trough mirrors require more frequent cleaning; robotic cleaning vehicles are available for CSP-scale arrays. Soiling loss is factored into our energy yield calculations with site-specific PM10 data.

What glycol concentration is required in the solar circuit for Saudi winters?

In most Saudi locations (Jeddah, Dammam, Riyadh), minimum night temperatures remain above 5°C, so 25% propylene glycol in the solar circuit provides adequate freeze protection to −10°C. In Abha, Taif and higher-altitude locations where temperatures can reach −3°C, 35% glycol is recommended (freeze protection to −18°C). Gulf Union Ozone supplies food-grade propylene glycol solar concentrate with inhibitor package; MSDS and compatibility data provided for Saudi Aramco MSDS system.

Get a Quote

Request a Solar Thermal Systems Quotation

To get a fast quotation, provide: application (water heating / process heat / absorption cooling / CSP pilot), collector type preferred (flat-plate / ETC / parabolic-trough), daily hot-water demand (m³/day) or process heat duty (kW), required temperature (°C), site location in Saudi Arabia, available roof or field area (m²), and connection to existing diesel or gas water heater (yes/no).

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Recent Deliveries

• Evacuated-tube collector array — Royal Commission Yanbu industrial district, March 2026
• Solar thermal water-heating system — King Abdulaziz Medical City, Jeddah, January 2026
• Parabolic-trough pilot unit — Saudi Aramco Dhahran R&D facility, October 2025

CR 4030570569 | ISO 9001:2015 | Jeddah, Saudi Arabia — Saudi Aramco vendor compliance · SAEP-347 credentials

Technical content reviewed by Gulf Union Ozone's Engineering Team, Jeddah — 2026