EWEC single-buyer rounds · Al Dhafra, Al Ajban, Khazna, Zarraf and the 1 GW round-the-clock solar-plus-storage project
Where it stands: Multiple awards signed and financed: Khazna and Al Dhafra thermal at financial close, the 5.2 GW round-the-clock project under construction, Taweelah C awarded and Al Nouf 1 and Zarraf in evaluation
As Abu Dhabi's sole procurer, EWEC has awarded a series of gigawatt-scale solar projects at record-low tariffs and, in October 2025, broke ground with Masdar on the world's first gigascale round-the-clock renewable project: a 5.2 GW solar plant paired with a 19 GWh battery system designed to deliver 1 GW of baseload renewable power continuously, backed by more than AED 22 billion of investment and targeted at the emirate's artificial-intelligence and data-centre load.
The problem
Abu Dhabi's clean target requires 60 percent of electricity production to come from clean sources by 2035, but solar without storage delivers energy in the middle of the day while the emirate's load peaks in the evening and its fastest-growing new customers, data centres serving artificial-intelligence workloads, need firm power every hour of every day. Adding solar alone therefore hits a ceiling: each additional gigawatt is worth less than the last, curtailment rises, and the residual evening ramp still has to be met by gas. At the same time the single-buyer model concentrates the risk of getting the volume wrong in one entity, so EWEC has had to procure three different things in parallel - cheap bulk solar energy, firm dispatchable capacity to cover the ramp, and now firm renewable capacity - while keeping tariffs low enough that the DoE will approve the pass-through.
What it does
EWEC procures through international tenders: an expression of interest, a qualification stage, a request for proposals, a preferred bidder and a power purchase agreement under which EWEC pays only for net electrical energy supplied. The solar sequence runs Noor Abu Dhabi (about 1 GW AC, commercial operation 2019), Al Dhafra (2 GW, bid in April 2020 at a then world-record levelised tariff of AED 4.97 fils per kWh, or US 1.35 cents per kWh, inaugurated November 2023, refinanced with a US$870.75 million green bond in January 2026), Al Ajban 1.5 GW (AC) awarded to EDF Renewables, KOWEPO and Masdar with the PPA signed on 26 April 2024 and financial close in September 2024, Khazna 1.5 GW (AC) awarded to ENGIE with Masdar on 10 October 2025 with financial close on 19 January 2026, and Zarraf 1.5 GW, for which the RFP was issued on 9 January 2025 to 16 qualified bidders out of 20 that filed expressions of interest in October 2024. In December 2024 EWEC secured about 75 square kilometres across four new sites (Al Faya, Al Khazna, Al Zarraf and Sila) for 4.5 GW of solar and up to 140 MW of wind. On 24 October 2025 EWEC and Masdar broke ground on the round-the-clock project: 5.2 GW of solar PV integrated with a 19 GWh battery energy storage system delivering 1 GW of baseload renewable power, with virtual power plant, grid-forming and black-start capability and AI-enhanced dispatch, more than AED 22 billion of capital, about 5.7 million tonnes of avoided CO2 a year and operation targeted for 2027. On the firm side, EWEC awarded the 2.6 GW Taweelah C CCGT on 3 June 2026 to TAQA with Aljomaih and Sembcorp under a PPA running to 2050, and received four proposals on 30 March 2026 for Al Nouf 1, a 3.3 GW carbon-capture-ready CCGT; it has also tendered a 400 MW battery system and the 140 MW Al Sila wind project.
Market effect
EWEC's procurement is the price-setting mechanism for the whole emirate, and the two numbers that matter are the solar tariff and the new baseload benchmark. Al Dhafra's 1.35 US cents per kWh set the global floor and made Abu Dhabi solar cheaper than the fuel cost of the gas plants it displaces, which is why more than 60 percent of instantaneous demand has already been supplied from renewable and clean sources at times (5.5 GW of an 8.6 GW load as early as December 2022). The round-the-clock project changes the product: a 5.2 GW array with 19 GWh of storage sold as 1 GW of continuous renewable output is the first time gigascale firm renewable energy has been priced at all, and it gives data-centre developers a contractable alternative to gas. The implication for thermal is not that gas disappears but that it is repriced as flexibility: Taweelah C and Al Nouf 1 are explicitly justified as transitional despatchable capacity to manage intermittency, sized at 2.6 GW and up to 3.3 GW, with Taweelah C claiming one of the region's lowest capital costs per kilowatt-hour and lowest levelised cost. EWEC now expects solar to exceed 30 GW by 2035. For contractors, the pipeline is the most predictable multi-gigawatt annual solar and storage flow in the world outside China and India; for lenders, the EWEC PPA with an ADQ-owned counterparty and energy-only payment structure has become a regional template.
Key numbers
- Round-the-clock project
- 5.2 GW solar PV plus 19 GWh battery storage delivering 1 GW of baseload renewable power; more than AED 22 billion; about 5.7 Mt CO2 avoided a year; operational by 2027
- Record solar tariff
- Al Dhafra 2 GW at AED 4.97 fils per kWh (US 1.35 cents per kWh), bid April 2020
- Gigawatt-scale solar awards
- Al Ajban 1.5 GW (PPA 26 April 2024), Khazna 1.5 GW (PPA 10 October 2025, financial close 19 January 2026), Zarraf 1.5 GW (RFP 9 January 2025)
- New firm capacity
- Taweelah C 2.6 GW CCGT awarded 3 June 2026 with a PPA to 2050; Al Nouf 1 up to 3.3 GW carbon-capture-ready, four proposals received 30 March 2026
- Build path
- At least 10 GW of solar by 2030, more than 18 GW by 2035 and an expectation of exceeding 30 GW of solar PV by 2035
Who gains and who pays
- Masdar, TAQA, ENGIE, EDF Renewables, KOWEPO, Sembcorp, Aljomaih (gains): Long-term PPAs with an ADQ-owned single buyer across solar, storage and CCGT.
- Data-centre and AI infrastructure operators (gains): Firm round-the-clock renewable supply becomes contractable for the first time.
- Battery and grid-forming inverter suppliers (gains): A 19 GWh single order plus a separate 400 MW battery tender.
- Existing gas-fired plants (costs): Energy value erodes as solar and storage cover more hours; role shifts to flexibility and reserve.
- EWEC and Abu Dhabi ratepayers (obligation): Long-dated take-or-supply obligations, including a Taweelah C PPA running to 2050.
- Environment Agency - Abu Dhabi and land authorities (mixed): Must allocate and safeguard tens of square kilometres of desert for each gigawatt.
Implementation
Each project moves from expression of interest to RFP in a few months, to preferred bidder and PPA in roughly 12 to 18 months, and to commercial operation two to four years later, with financial close typically within one or two quarters of PPA signature: Al Ajban closed in September 2024 after an April 2024 award, Khazna closed on 19 January 2026 after an October 2025 award, and the 1 GW Al Dhafra thermal project closed on 30 December 2025. The four sites secured in December 2024 (Al Faya, Al Khazna, Al Zarraf and Sila) are the land bank for the next rounds, allocated in coordination with the DoE, the Environment Agency - Abu Dhabi, the Department of Municipalities and Transport, ADNOC, the Department of Culture and Tourism and the Ministry of Defence. EWEC also took over the load despatch function from TRANSCO, so it now plans, procures and despatches. The near-term gates are the Zarraf award, the Al Nouf 1 award after the March 2026 proposals, the 400 MW battery and 140 MW Al Sila wind awards, and delivery of the round-the-clock project against its 2027 operating target.
Concerns
- Concentration of counterparty risk in a single buyer with very long-dated obligations
- Delivering 19 GWh of storage on a 2027 timeline is an execution risk with no precedent at this scale
- Record-low tariffs leave little headroom for equipment cost or interest-rate shocks
- New CCGT capacity to 2050 locks in gas even as the clean share rises
- Land, transmission and environmental approvals must keep pace with 1.5 GW-per-round procurement
- Data-centre demand growth could outrun even this pipeline between tender cycles
Dates to watch
- 2027: Target operation of the 5.2 GW solar plus 19 GWh storage round-the-clock project
- 2030: At least 10 GW of solar in operation and more than 50 percent of Abu Dhabi's energy from renewable and clean sources
- 2035: More than 18 GW of solar, with EWEC expecting to exceed 30 GW, against the 60 percent clean target
Sources
- Groundbreaking of the world's first gigascale round-the-clock renewable energy project (24 October 2025), Emirates Water and Electricity Company / Masdar (official text)
- EWEC announces partners to develop the 1.5 GW Khazna Solar PV project (10 October 2025), Emirates Water and Electricity Company
- EWEC announces partners to develop the 1.5 GW Al Ajban solar project (26 April 2024), Emirates Water and Electricity Company
- EWEC announces partners to develop the Taweelah C IPP project (3 June 2026), Emirates Water and Electricity Company
- EWEC receives four proposals for Al Nouf 1, the UAE's largest carbon-capture-ready CCGT (30 March 2026), Emirates Water and Electricity Company
- Abu Dhabi Power Corporation announces the world's lowest tariff for solar power, AED 4.97 fils per kWh (28 April 2020), Abu Dhabi Power Corporation / EWEC
- EWEC issues the request for proposals for the 1,500 MW Zarraf Solar PV project (9 January 2025), Emirates Water and Electricity Company
Checked against sources on .