DEWA Solar Regulations in Dubai:

Dubai’s abundant sunshine and clear regulatory framework make rooftop solar one of the smartest investments property owners can make. The entire process is governed by DEWA (Dubai Electricity and Water Authority) under the Shams Dubai programme, which is based on Executive Council Resolution No. 46 of 2014 and the latest Connection Conditions (Version 4.1).

This guide explains everything you need to know as a residential, commercial, or industrial property owner so you can install solar correctly the first time — fully compliant, safely connected, and ready to start saving on your electricity bills.

At Watts & Ergon, we specialise in DEWA-enrolled solar solutions and handle the entire process end-to-end.

What Is Shams Dubai?

Shams Dubai is DEWA’s distributed renewable energy programme that allows property owners to install grid-connected solar photovoltaic (PV) systems. You generate electricity for your own use. Any surplus is exported to the DEWA grid and credited against future consumption through net metering. There is no cash payment for excess energy — only bill credits.

Key principles:

• Electricity must be consumed on the same plot / under the linked consumer account(s).
• Only DEWA-enrolled consultants and contractors may design and install systems.
• All equipment must appear on DEWA’s eligible list.
• Ground-mounted systems are generally not permitted under Shams Dubai (rooftop, façade, and building-integrated installations are allowed).

System Size Limits

DEWA limits solar capacity based on your property’s Total Connected Load (TCL). The maximum is capped at 1,000 kW (1 MW) per plot.

Approximate capacity allowances (simplified from the official slab table):

TCL Range	Allowed Share of TCL	Cumulative Max Capacity
0–100 kW	100%	100 kW
100–200 kW	75%	175 kW
200–400 kW	50%	275 kW
400–600 kW	25%	325 kW
Above 600 kW	5%	Up to 1,000 kW

Your approved contractor calculates the exact allowable size during the design stage. Larger industrial projects may also explore the separate D33 Solar PV Initiative (for eligible manufacturing, data centres, and agri-tech companies), which can allow higher captive capacity.

Eligible Installation Types

• Rooftop-mounted systems
• Building façades
• Carports and shade structures integrated with the building
• Building-integrated PV (BIPV)

Free-standing ground-mounted arrays are not eligible under standard Shams Dubai rules (except under specific commercial arrangements or grandfathered older systems).

How Net Metering Works

1. A bi-directional smart meter records both electricity you import from DEWA and electricity you export.
2. At the end of each billing cycle:
   • If you import more than you export → you pay the net amount at normal tariff slabs.
   • If you export more than you import → the surplus is credited and carried forward.
3. Credits roll over indefinitely and can only be used against future consumption on the same plot (or other accounts you hold on the same plot, in a sequence you specify).
4. No cash payout is made for surplus energy.

This structure delivers strong bill savings, especially for properties with high daytime consumption.

Step-by-Step DEWA Solar Approval Process

DEWA has streamlined the process into a single online application for Solar NOC + Design Approval + Connection.

1. Engage a DEWA-enrolled contractor/consultant (mandatory — only they can submit applications).
2. Site assessment & system design — roof condition, shading analysis, structural check, load review, and precise sizing.
3. Prepare technical documentation (see checklist below).
4. Submit the “Getting Solar Permits & Connections” application via the DEWA portal.
5. DEWA review — typically 5–17 working days depending on completeness and system size. You receive Solar NOC, design approval, and connection fee invoice (application itself is free).
6. Installation using only DEWA-listed equipment.
7. Inspection & connection — DEWA inspects the system. Systems above 100 kWp require a performance test report. Bi-directional meter is installed and the system is energised.
8. Generation begins — net metering is activated.

Typical total timeline: 4–12 weeks from engagement to go-live when documentation is complete and the contractor is experienced.

Required Documents (Typical Checklist)

Your contractor prepares most of these, but you will need to provide ownership/identity documents:

• Title deed / ownership proof (or Ejari / lease + landlord consent where applicable)
• Emirates ID / trade licence
• Existing DEWA account details
• Affection plan (mandatory for free-zone properties)
• Design Assessment Input Form (.xlsx)
• Total Connected Load / maximum demand schedule
• Single-line diagram (SLD)
• Site layout showing panel placement, inverters, and metering
• Production estimates (kWp and annual kWh)
• Equipment datasheets (modules, inverters, interface protection) — must be on DEWA’s eligible list or submitted for approval
• Wiring layout and cable sizing details
• Structural assessment / roof loading calculations
• Developer NOC (for properties in master communities)
• Explicit acceptance of Connection Agreement terms
• Performance test report (systems ≥ 100 kWp)

Additional building permits from Dubai Municipality, Trakhees, or the relevant free-zone authority may be required for structural works.

Technical & Safety Requirements

• Only DEWA-listed PV modules, inverters, and protection devices
• Anti-islanding protection and proper interface protection
• DC isolators compliant with relevant IEC standards
• Adequate earthing, lightning protection, and fire access paths
• Compliance with DEWA DRRG (Distributed Renewable Resources Generation) standards
• Annual maintenance by an approved contractor is expected

Using non-approved equipment is one of the most common reasons for rejection or disconnection.

Common Pitfalls to Avoid

• Choosing a non-enrolled contractor
• Oversizing beyond the TCL-based limit
• Submitting incomplete or incorrect drawings
• Installing non-listed equipment
• Skipping structural assessment or developer NOC
• Attempting DIY or unregistered work (this leads to rejection and possible fines)

Benefits for Property Owners

• Significant reduction in electricity bills
• Protection against future tariff increases
• Contribution to Dubai’s Clean Energy Strategy 2050 and Net Zero goals
• Potential increase in property value
• Long-term energy security with a 25-year system life expectancy

There are currently no direct cash subsidies for most residential and commercial systems — the financial return comes entirely from bill savings via net metering.

Why Work with Watts & Ergon?

As a DEWA-enrolled Electrical & DRRG Solar PV contractor, Watts & Ergon manages the complete journey:

• Free site survey and accurate system sizing
• Full technical design and documentation
• Single-application submission and follow-up with DEWA
• Installation with only approved equipment
• Inspection support and handover
• Ongoing maintenance options

We ensure your project is compliant from day one, minimising delays and maximising long-term performance.

Frequently Asked Questions