Abu Dhabi operates an energy netting framework — not a cash feed-in tariff. Surplus solar electricity exported to the grid is credited as kWh offsets against future bills; no monetary payment is made. Systems up to 5 MW may connect under this framework. All installations require prior RSB (Regulation & Supervision Bureau) approval, a signed PV Connection Agreement with your distribution company, and contractors drawn from the utility’s own approved lists. The UAE solar compliance hub covers the national and emirate-level rules in full. This guide focuses specifically on ADDC (Abu Dhabi city) and AADC (Al Ain), which are separate legal entities with separate approval processes.
Most Common Mistake: Using a Contractor Not on the ADDC/AADC Approved List
Both ADDC and AADC maintain published lists of approved PV consultants and approved PV integrators. Engaging a contractor who does not appear on the relevant list — even a well-qualified one — will result in immediate application rejection. ADDC and AADC will not accept a design package or sign a Connection Agreement if the consultant or integrator is not pre-approved. Download the current lists directly from addc.ae or aadc.ae before signing any contractor engagement. The lists are updated periodically — confirm each contractor’s current status, not just their historical approval.
Abu Dhabi Energy Netting: How It Works
The Abu Dhabi Small-Scale Solar PV Energy Netting Regulation, published by the DOE in January 2017, established a kWh-for-kWh offset mechanism. When a solar system generates more electricity than the premises is consuming at a given moment, the surplus flows to the ADDC or AADC grid. That exported energy is recorded by the bidirectional meter and credited against the customer’s next electricity bill as kWh units — not as cash.
Two rules define how the credits work:
No monetary compensation. The regulation is explicit: the owner is not entitled to cash payment for exported surplus. Credits accumulate as kWh units only, offsetting future consumption at the customer’s own applicable tariff rate. There is no fixed export price and no mechanism to monetise accumulated kWh credit balances.
Credits carry forward indefinitely. Unused kWh credits roll forward from one bill to the next with no expiry date and no cap on accumulation. This is commercially significant for customers in Abu Dhabi whose consumption patterns are seasonal — excess generation in mild months accumulates and offsets peak summer air-conditioning consumption.
Abu Dhabi Tariff Rates (ADDC, 2025)
The financial value of each exported kWh depends entirely on the customer’s tariff category. Abu Dhabi applies a dual structure based on nationality.
| Customer Category | Tariff Rate (ADDC, 2025) |
|---|---|
| UAE Nationals — residential | 6.7–7.5 fils/kWh (heavily subsidised) |
| Expatriates — residential | 26.8–30.5 fils/kWh |
| Commercial | AED 0.20/kWh (20 fils/kWh) |
| Small industrial (under 1 MW) | AED 0.286/kWh (28.6 fils/kWh) |
The practical consequence is that a UAE National and an expatriate living in identical homes with identical solar systems will see very different financial returns. Each exported kWh is worth roughly four times more to the expatriate customer than to the UAE National, because that kWh offsets a bill calculated at a much higher tariff rate. This divergence matters when advising customers on system sizing and payback expectations — see the dedicated section below.
ADDC vs AADC: Which Applies to You?
The Small-Scale Solar PV Energy Netting Regulation applies to both distribution zones, but ADDC and AADC are separate companies with separate staff, separate application processes, and separate approved contractor lists.
| ADDC | AADC | |
|---|---|---|
| Coverage area | Abu Dhabi city, Ruwais, coastal areas, most of the emirate outside Al Ain | Al Ain city and Al Ain governorate |
| Website | addc.ae | aadc.ae |
| Approved PV integrator list | Published at addc.ae | Published at aadc.ae (separate process document) |
| Approved PV consultant list | Published at addc.ae | Published at aadc.ae |
| Connection Agreement | ADDC PV Connection Agreement | AADC PV Connection Agreement |
| Bidirectional meter installation | By ADDC | By AADC |
A contractor holding ADDC approval is not automatically approved by AADC. If a project is located in Al Ain, verify the contractor’s current status on the AADC list specifically. This is a frequent source of delays when Abu Dhabi city-based integrators take on Al Ain projects without checking AADC’s separate register.
Unsure Which Utility Covers Your Site?
If your project site is near the boundary between the ADDC and AADC service areas, contact both utilities to confirm which holds the supply agreement for the premises. The existing electricity bill for the site will show the billing entity — ADDC or AADC. The energy netting application must be submitted to the same entity that holds the supply agreement.
System Eligibility and Capacity Rules
Not every premises or system configuration qualifies under the energy netting regulation. The key eligibility conditions are:
Existing supply agreement. The customer must hold an active electricity supply agreement with ADDC or AADC at the same premises, in their own name. A tenant whose supply account is in the landlord’s name cannot apply independently. The connection agreement for solar must be signed by the same party who holds the supply agreement.
Maximum system size: 5 MW. The regulation caps individual installations at 5,000 kW (5 MW) per premises on the low-voltage distribution network. Projects above this threshold move into utility-scale territory governed by Emirates Water and Electricity Company (EWEC) — a fundamentally different procurement framework involving competitive tendering and 25–30-year power purchase agreements.
On-site generation only. The system must generate electricity for consumption at the same premises. Wheeling energy from one site to another through the ADDC/AADC grid — common in some C&I solar markets elsewhere — is not permitted under the Abu Dhabi energy netting framework. Behind-the-meter generation for own consumption, with netting of surplus, is the only permitted structure.
LV network connection. Systems connect at the customer’s existing low-voltage supply point. High-voltage connections at the distribution network level require a different process and are outside the energy netting regulation scope.
Equipment conformity. All panels, inverters, and protection equipment must comply with the applicable IEC standards and the QCC Conformity Assessment Scheme. Equipment without valid UAE market conformity documentation will be rejected at the RSB review stage.
The Abu Dhabi Solar Application Process
The five-step sequence below applies to both ADDC (Abu Dhabi city) and AADC (Al Ain) installations. The RSB approval step is mandatory for all projects before a connection agreement can be signed.
Obtain Municipal Building Permits
Obtain structural and building permits from your municipality — Abu Dhabi City Municipality (ADM) for Abu Dhabi city projects — before approaching ADDC or AADC. The municipality confirms the building structure can support panel loading and that the installation complies with local planning requirements. The municipal permit number is included in the ADDC/AADC submission package.
Engage Approved PV Consultants and Integrators
Download the current approved consultant and approved integrator lists from addc.ae (Abu Dhabi city) or aadc.ae (Al Ain). Engage an approved consultant to prepare the technical design package for RSB. Engage an approved integrator to carry out installation. Both engagements must be in place before submitting to RSB. Using a contractor not on the applicable list causes immediate rejection.
Submit Technical Design Package to RSB
The approved consultant prepares and submits the full RSB design package: site plan, single-line diagram, system sizing calculations confirming compliance with the 5 MW cap, equipment datasheets (IEC 61215 and IEC 61730 panels; IEC 62109-1/-2 inverters; IEC 62116 anti-islanding compliance), earthing and protection design per Abu Dhabi Electricity Wiring Regulations 2020, and current competency certificates for both consultant and integrator. RSB issues written approval before any installation work begins.
Sign the PV Connection Agreement
With RSB written approval in hand, sign the PV Connection Agreement with ADDC (Abu Dhabi city) or AADC (Al Ain). The agreement defines energy netting terms, metering requirements, and technical conditions for the life of the installation. You must hold the active electricity supply agreement for the same premises in your own name as a precondition. ADDC or AADC then schedules bidirectional meter installation at no cost to the customer.
Complete Installation and Commissioning
The approved integrator installs the system to the RSB-approved design specification. ADDC or AADC conducts a final inspection and installs the bidirectional meter. Do not energise the system or export to the grid until ADDC/AADC has physically installed the bidirectional meter and issued written authorisation to connect. Energising the system before that point breaches the Connection Agreement and may result in disconnection.
Required Documentation Checklist
A typical RSB submission package includes the following. Your approved PV consultant will confirm the current RSB checklist version before submission.
| Document | Prepared By | Submitted To |
|---|---|---|
| Municipal building permit | Customer (via ADM or relevant municipality) | RSB (included in package) |
| Site plan and roof layout | Approved PV consultant | RSB |
| Single-line diagram | Approved PV consultant | RSB |
| System sizing calculations (confirming 5 MW compliance) | Approved PV consultant | RSB |
| Panel datasheets (IEC 61215 + IEC 61730 certified) | Equipment supplier | RSB |
| Inverter datasheets (IEC 62109-1/-2 certified) | Equipment supplier | RSB |
| Anti-islanding compliance documentation (IEC 62116) | Equipment supplier / consultant | RSB |
| Earthing and protection design (per Abu Dhabi Electricity Wiring Regulations 2020) | Approved PV consultant | RSB |
| QCC Conformity Assessment certificates for key components | Equipment supplier | RSB |
| ECAS (Emirates Conformity Assessment Scheme) documentation | Equipment supplier | RSB |
| Approved consultant competency certificate | Approved PV consultant | RSB / ADDC or AADC |
| Approved integrator competency certificate | Approved PV integrator | RSB / ADDC or AADC |
| Existing electricity supply agreement (copy) | Customer | ADDC or AADC |
| RSB written approval (to be obtained before connection agreement) | RSB (issued to applicant) | ADDC or AADC |
| Signed PV Connection Agreement | Customer + ADDC/AADC | ADDC or AADC |
Pro Tip: Use Solar Design Software to Generate RSB-Ready Documentation
A well-prepared RSB submission package includes system sizing calculations, single-line diagrams, and string configuration reports in a format that reviewers can assess quickly. Using solar design software purpose-built for PV system design produces the technical outputs — single-line diagrams, shading analysis, yield simulations — that your approved consultant needs to complete the RSB package efficiently. It also creates a documented audit trail from design to as-built, which is useful if RSB raises technical queries during review.
Technical Standards and Equipment Approval
All equipment and designs must comply with the following standards. RSB checks conformity at the design review stage — non-compliant equipment will require substitution before approval is granted.
| Standard | Applies To | Notes |
|---|---|---|
| Abu Dhabi Electricity Wiring Regulations 2020 (DOE) | All electrical design and installation | Primary Abu Dhabi wiring standard — supersedes older RSB editions |
| IEC 61215 | PV modules (crystalline silicon, thin-film) | Module design qualification and type approval |
| IEC 61730-1/-2 | PV modules | Module safety qualification |
| IEC 62109-1/-2 | Inverters | Safety of power converters for use in PV systems |
| IEC 62116 | Inverters | Anti-islanding protection — critical for ADDC/AADC grid safety |
| AADC Electricity Network Design Guidelines EN-804 | All AADC-connected systems | AADC-specific network design requirements |
| QCC Conformity Assessment Scheme for Small-Scale Solar PV | Modules, inverters, mounting | Abu Dhabi quality conformity scheme — certificates required |
| ECAS (Emirates Conformity Assessment Scheme) via MoIAT | Equipment entering UAE market | Federal-level market conformity — mandatory for UAE sale |
| RSB Solar PV Installation Guidance Document | All installations | RSB guidance published at rsb.gov.ae and doe.gov.ae — check for current version |
QCC and ECAS are distinct schemes. QCC (Quality and Conformity Commission) operates the Abu Dhabi conformity assessment for small-scale solar specifically. ECAS (Emirates Conformity Assessment Scheme), administered by the Ministry of Industry and Advanced Technology (MoIAT), is the federal-level scheme for all regulated products entering the UAE market. Equipment needs valid documentation under both schemes — ECAS confirms market eligibility; QCC confirms Abu Dhabi solar-specific conformity.
Wiring Regulations Version
The Abu Dhabi Electricity Wiring Regulations 2020 replaced the previous editions published under the RSB. Ensure your design documentation references the 2020 edition specifically — RSB reviewers have flagged submissions that cite older editions. The current version is available at doe.gov.ae.
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UAE Nationals vs Expatriates: The Financial Case for Solar
Abu Dhabi’s dual-tariff structure creates two fundamentally different financial scenarios for solar. Understanding this before proposing a system is not optional — it directly affects whether the project makes commercial sense for the customer.
How the Tariff Split Works
UAE Nationals in Abu Dhabi benefit from heavily subsidised electricity tariffs: 6.7–7.5 fils/kWh for residential consumption. This subsidy is a deliberate government policy. Expatriate residential customers pay market-rate tariffs: 26.8–30.5 fils/kWh — roughly four times higher.
Because energy netting credits are valued at the customer’s own tariff rate, the financial return on each exported kWh follows the same ratio.
Illustrative Payback Comparison
Assume a 10 kW residential rooftop system in Abu Dhabi generating 16,000 kWh/year. System cost: AED 40,000 (installed, including all approvals).
| Parameter | UAE National | Expatriate |
|---|---|---|
| Applicable tariff | ~7 fils/kWh | ~28 fils/kWh |
| Annual generation value (at own tariff) | AED 1,120/year | AED 4,480/year |
| Simple payback period | ~36 years | ~9 years |
| Financial case | Weak without additional incentives | Strong |
These figures are illustrative. Actual payback depends on self-consumption ratio, system size, shading losses, and current tariff tier. But the directional conclusion is consistent: the financial case for solar is substantially stronger for expatriate customers on unsubsidised tariffs than for UAE Nationals.
For UAE National customers, the primary argument for solar is typically energy independence, contribution to Abu Dhabi’s clean energy targets, and the rising cost trajectory of the expatriate-rate tier (which signals where prices may move over time). Some UAE National customers also value the ability to accumulate kWh credits against possible future tariff increases.
For commercial and industrial customers paying AED 0.20–0.286/kWh, the economics are more attractive. A 500 kW commercial system generating 800,000 kWh/year offsets approximately AED 160,000–229,000 in annual electricity costs — a payback period in the range of 5–8 years depending on system cost and self-consumption rate.
Pro Tip: Model the Actual Tariff Tier in Your Proposal
When proposing solar to an Abu Dhabi customer, confirm their tariff category first — UAE National or expatriate residential, commercial, or small industrial. Use solar design software that allows you to input the customer’s actual tariff rate when calculating annual savings. Presenting payback figures calculated at the wrong tariff rate creates credibility problems and may lead to post-installation disputes if savings fall short of expectations.
Abu Dhabi C&I Solar: Larger Installations
Systems Above 5 MW
Once a project exceeds 5 MW, it moves beyond the energy netting regulation and into utility-scale territory. In Abu Dhabi, utility-scale generation is procured by Emirates Water and Electricity Company (EWEC), which operates as the single buyer for all generation above the small-scale threshold. EWEC issues requests for proposals through competitive tender processes; winning developers sign 25–30-year power purchase agreements (PPAs) directly with EWEC. There is no open retail electricity market in Abu Dhabi — no direct supply arrangements, no peer-to-peer solar trading. EWEC is the sole off-taker for utility-scale projects.
The scale of EWEC’s portfolio illustrates Abu Dhabi’s solar ambition: the Al Dhafra Solar Project (2 GW, operational November 2023) achieved a tariff of approximately 1.35 US cents/kWh at the time of award — one of the world’s lowest-recorded tariffs for utility-scale solar. The Al Ajban solar project (1.5 GW) was targeting operational status in Q3 2026 at the time this guide was written.
Behind-the-Meter PPA Model for C&I Customers
For commercial and industrial customers seeking larger systems that remain below the 5 MW LV network threshold, a zero-capital-expenditure (zero-capex) behind-the-meter PPA structure has emerged in Abu Dhabi. Under this model:
- A developer finances, builds, and owns the solar system on the customer’s roof or land
- The customer pays a fixed or indexed discounted electricity rate (fils/kWh) to the developer for energy consumed from the system
- The customer typically pays ADDC or AADC for grid electricity consumed beyond what the solar system generates
- PPA terms typically run 15–20 years
- The developer holds the ADDC/AADC Connection Agreement and carries the RSB approval, contractor obligations, and metering responsibilities
This model allows C&I customers to capture the economic benefit of solar without upfront capital outlay or operational complexity. For developers operating this model in Abu Dhabi, the same ADDC/AADC approval process applies — the Connection Agreement is signed in the developer’s name (as the entity with the supply agreement or as a designated third party, depending on ADDC/AADC agreement structure at the time of application).
No Open Wheeling in Abu Dhabi
Unlike some electricity markets that allow C&I customers to wheel solar generation from one site to another through the distribution network, Abu Dhabi does not operate an open retail market. EWEC is the single buyer for utility-scale generation; the ADDC/AADC energy netting framework covers only on-site generation and self-consumption. A business with multiple premises cannot connect solar at one site and credit the generation to a different site’s electricity bill through the grid.
Frequently Asked Questions
What is the maximum solar system size allowed in Abu Dhabi under ADDC?
The Small-Scale Solar PV Energy Netting Regulation sets a maximum of 5 MW (5,000 kW) per premises connected to the low-voltage distribution network. This applies to both ADDC and AADC. Systems must generate for on-site consumption only — wheeling to a third-party site is not permitted under the netting framework.
Does ADDC pay cash for solar electricity exported to the grid?
No. The regulation is explicit: owners are not entitled to monetary compensation for surplus exports. Exported kWh are credited against future bills at the customer’s own tariff rate as kWh offsets only. Credits carry forward indefinitely with no expiry.
Do I need RSB approval to install solar in Abu Dhabi?
Yes. RSB must approve all small-scale solar PV projects before installation begins. You must also sign a PV Connection Agreement with ADDC or AADC before the system connects. An approved PV consultant submits the RSB design package on your behalf. The RSB Solar PV Installation Guidance Document at rsb.gov.ae outlines the full submission requirements.
What is the difference between ADDC and AADC for solar applications?
ADDC covers Abu Dhabi city and most of the emirate. AADC covers Al Ain. Both use the same energy netting regulation, but each maintains separate approved contractor lists. A contractor approved by ADDC is not automatically approved by AADC — confirm the contractor’s status on the relevant list before engagement.
How do Abu Dhabi solar tariffs compare for UAE Nationals versus expatriates?
UAE Nationals pay 6.7–7.5 fils/kWh — heavily subsidised. Expatriates pay 26.8–30.5 fils/kWh. Because energy netting credits are valued at the customer’s own tariff, the annual financial saving from a solar system is roughly four times higher for an expatriate customer than for a UAE National with the same system on the same roof. This significantly affects payback period and return on investment.
