Water Desalination

Sustainable water from
clean energy.

Solar thermal and photovoltaic-powered desalination systems — delivering fresh water from seawater and brackish sources to ultra-pure industrial process water, without fossil fuels.

Proven solar desalination technology, operational since 2013.

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Pioneers in solar desalination

One of the few global firms delivering both renewable power and sustainable water.

Water scarcity is one of the defining infrastructure challenges of rapidly growing economies. Empereal is among the few companies worldwide with combined expertise in clean power and water. We design and deliver solar-powered desalination systems that produce ultra-pure water without any fossil fuel dependency.

18+
Years of Experience
695 MW
of Solar Commissioned
140+
Projects Delivered
< 5 ppm
Ultra-pure Product Water

Core Technologies

Three Solar Desalination Pathways

Empereal selects and designs the optimal desalination technology based on your energy source, water quality requirements, salinity levels, and project scale.

  • Solar Thermal — LFR Desalination

    Linear Fresnel Reflector (LFR) solar thermal fields generate direct saturated steam to drive multi-effect distillation (MED) units. Includes thermal storage for uninterrupted 24/7 operation.

    Solar Thermal

  • PV-Powered Reverse Osmosis

    Photovoltaic arrays power reverse osmosis (RO) membranes to produce fresh water from seawater or brackish sources. Ideal for both grid-connected and off-grid applications, scalable from 1,000 to over 1,000,000 litres per day.

    Grid & Off-Grid

  • Forward Osmosis & Hybrid Systems

    Advanced forward osmosis for industrial effluent recovery and low-energy desalination. Solar-biomass hybrid configurations enable round-the-clock fresh water production in remote locations without battery storage.

    Hybrid & Industrial
Zamani Islands Resort renewable energy systems, Maldives

Unified Renewable Energy

Zamani Islands Resort

A fully renewable-powered net-zero resort spanning 8 islands in the Maldives. The development integrates large-scale BIPV, net-zero architecture, agri-photovoltaics, and a circular zero-waste strategy. Located 21 nautical miles from Velana International Airport.

Solar Thermal Desalination

Direct steam generation for continuous desalination.

Linear Fresnel Reflector (LFR) solar thermal fields generate direct saturated steam from concentrated solar radiation — eliminating heat transfer fluids and reducing system complexity. The steam directly drives multi-effect distillation (MED) units, producing ultra-pure water at less than 5 ppm.

Thermal energy storage using phase-change materials ensures uninterrupted desalination, enabling true 24/7 fresh water production from renewable energy.

Key Advantages:

  • Product water quality: < 5 ppm (ultra-pure)
  • High-temperature steam generated directly from the solar field
  • 24/7 operation enabled by phase-change thermal storage
  • Zero fossil fuel input — fully renewable
  • Scalable from community systems to large industrial plants
Suitable For:
  • Seawater
  • Brackish Water
  • Industrial Effluent
  • Thermal Storage

Scope of Services

What We Deliver

Empereal's water and desalination scope covers the full project lifecycle — from initial source water analysis through design, EPC, commissioning, and long-term O&M.

  • Solar Thermal LFR Desalination

    Design and installation of Linear Fresnel Reflector solar thermal fields driving multi-effect distillation (MED) systems with thermal storage.

  • PV-Powered Reverse Osmosis (RO)

    Solar photovoltaic-powered RO systems for seawater and brackish water — suitable for grid-connected and off-grid applications.

  • Forward Osmosis & Industrial Effluent Recovery

    Low-energy forward osmosis systems for industrial wastewater treatment and water reuse.

  • Solar-Biomass Hybrid Desalination

    Round-the-clock fresh water production combining solar thermal with biomass backup — no fossil fuel dependency.

  • Standalone & Off-Grid Systems

    Decentralised community and remote location solutions for areas with no reliable grid power.

  • Full EPC, Integration & Long-term O&M

    Complete engineering, procurement, construction, commissioning, authority approvals, and ongoing performance monitoring & maintenance.

Applications

Six desalination application sectors

Empereal's solar desalination systems serve diverse end-users — from remote island communities to large industrial facilities requiring ultra-pure process water.

  • Coastal communities & islands

    Standalone seawater desalination powered entirely by solar — providing reliable fresh water without fossil fuel supply chains.

  • Power plants

    Flue gas waste heat recovery converting cooling tower blowdown into demineralized water — reducing industrial water consumption.

  • Industrial facilities

    Ultra-pure process water (< 5 ppm) for boilers, manufacturing processes, and industrial cooling — reducing reliance on municipal supply.

  • Rural & remote areas

    Decentralized community-scale water production without grid dependence — sustainable, affordable fresh water in underserved regions.

  • Resorts & hospitality

    Sustainable fresh water systems for net-zero tourism developments — paired with solar PV and thermal energy to eliminate dependencies.

  • Municipal water supply

    Large-scale solar desalination for public water infrastructure — scalable from pilot plants to municipal-scale systems supplying thousands.

How we deliver

Our water project process

A rigorous, phased approach managed under ISO-certified systems.

  1. 1

    Water Source Assessment

    Analysis of source water quality, volume requirements, and site conditions.

  2. 2

    Technology Selection

    Choosing optimal solar-thermal, PV-RO, or hybrid configuration.

  3. 3

    System Design & Integration

    Engineering water treatment with solar energy generation.

  4. 4

    Installation & Commissioning

    Deploying treatment units with performance verification.

  5. 5

    Ongoing Monitoring & Maintenance

    Ensuring water quality compliance and system uptime.

Our Work

Related Projects

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Explore Our Other Core Solutions

Architectural BIPV & Solar Facade

Custom-designed solar façades, railings, canopies, and architectural BIPV systems. IEC-certified modules engineered for landmark architecture — Dubai SHAMS/D33 compliant.

Solar PV Systems

Utility-scale PV farms, commercial & industrial rooftops, solar carports, ground-mounted systems, single-axis trackers, and architectural BIPV. Full lifecycle design, EPC, and O&M.

Energy Storage

Battery energy storage paired with solar PV, proprietary thermal storage using phase-change materials, molten salt CSP storage, and intelligent energy management systems.

Green Hydrogen

Alkaline electrolyser-based green hydrogen production paired with solar PV and desalination — including India’s first sea-water-to-hydrogen project and DEWA hydrogen plants.

Every project begins with engineering.

Speak with our technical team about your requirements — from initial feasibility through to long-term operations.

Request a Technical Consultation