Connect with us

Hi, what are you looking for?


Clean Power

Largest Single-Unit Concentrated Solar Power Plant In World — Shams 1 (CT Exclusive)

I got the chance today to visit (for the second time) Abu Dhabi’s Shams 1 concentrating solar power (CSP) plant, the largest single-unit CSP plant in the world. I’ll run through an overview of this CSP plant again, and then will also add some other details I gathered at the site today. I also have video interviews with chief operators of the plant that will be coming shortly.

shams 1

Shams 1, largest single-unit CSP plant in the world, in operation.

First of all, the brief overview is as follows:

Parabolic mirrors are used to concentrate heat onto pipes carrying oil. That oil goes on to heat water, which turns into steam and then turns a turbine that creates electricity. A natural gas booster is also used to superheat the water, which can get up to just under 400 degrees. Also, notably, the parabolic mirrors track the sun continuously.


shams power plant

How Shams 1 works.

80% of the heat comes from the CSP side of things, while 20% comes from the natural gas used in the booster heater to superheat the water. While the CSP technology accounts for ~80% of the heat, however, it actually just accounts for ~55% of the generated electricity. That ~20% heat from natural gas is used very efficiently to create the other ~45% — that last extra bit of heat is worth a lot!

Regarding the cost per kWh, Shams personnel can’t share that information, since they have a private power purchase agreement with the grid. (But the average cost of CSP plants is currently 20–25 cents per kWh, process engineer and CSP expert Abdulaziz Al Obaidli noted.)

After just about one year of operation, Abdulaziz Al Obaidli reported that Shams 1 was generating 210 GWh annual production, enough electricity for ~20,000 UAE homes (and ~0.5% of UAE electricity demand).

The CSP project is 2.5 km2 in total, and if all the mirrors were lined up, they’d extend about 120 kilometers (~74.5 miles)!

shams 1 CSP plant

Shams 1 CSP power plant in Abu Dhabi, UAE — from a windy sand dune.

Shams 1 is designed to displace 175,000 tons of CO2 per year, approximately equivalent to planting 1.5 million trees or taking 15,000 cars off the road.

The nameplate capacity of Shams 1 is 100 MW, but it has actually produced up to 125 MW at one point in time a few months ago.

While the plant can use natural gas, it is only allowed to use a maximum of 600,000 btu of it, so the Shams 1 operators have to decide how much of this to use for the booster heater (~80%), for production at night, or for production on cloudy days.

The cost of CSP is still much higher than solar PV, but Abdulaziz Al Obaidli noted that it also comes with some clear advantages. It is:

  • dispatchable — you can easily store heat, and heat storage units can have a lifecycle of 25+ years, much longer than batteries;
  • less influenced by short-term drops in sunlight, meaning less fluctuation in electricity output, which is easier on grid operators;
  • more easily combined with other thermal power plants, or can actually be used to upgrade thermal power plants of other types.

Overall, aside from producing clean electricity, the Shams 1 power station is helping Masdar* and the overall CSP industry to build knowledge, experience, and human capacity. For example, researchers at Masdar Institute and elsewhere work on ways to better optimize the system, while employees operating the plant have been learning how to do so more efficiently and effectively. I asked Abdulaziz Al Obaidli and Shams Power Company General Manager Yousif Al Ali a bit about what they’ve learned in the past year. They discuss those things a bit in this exclusive CleanTechnica video (apologies for the wind and not having a better camera for such a windy location):

I also asked Abdulaziz Al Obaidli a bit about trends he sees in the CSP industry as a whole. I’ll soon publish that section of the interview in a separate article. Stay tuned!

Unfortunately, because the power plant is now in operation, we weren’t able to walk around near the mirrors (they’re hot now!). But if you’d like a closer look, here are a few pictures from last year’s tour:

Credit: Zachary Shahan, Clean Technica

Image Credit: Marika Krakowiak

masdar clean energy director shams 1 managers

Shams Power Company Process Engineer Abdulaziz Al Obaidli, Masdar Clean Energy Director Bader Saeed Al Lamki, and Shams Power Company General Manager Yousif Al Ali at Shams 1 CSP power plant in Abu Dhabi.

Shams Power Company Process Engineer & Masdar Institute Phd student Abdulaziz Al Obaidli at Shams 1 CSP power plant in Abu Dhabi. Photo Credit: Zachary Shahan  / CleanTechnica

Shams Power Company Process Engineer & Masdar Institute PhD student Abdulaziz Al Obaidli at Shams 1 CSP power plant in Abu Dhabi.

Keep up to date with the hottest solar news and commentary here on CleanTechnica, and subscribe to our solar newsletter or overall cleantech newsletter to never miss a story!

*Full Disclosure: Masdar is covering my entire visit to Abu Dhabi in order to attend & cover Abu Dhabi Sustainability Week, which includes this and a couple of other exclusive Masdar tours.

All images are available for republishing as long as credit is provided to me (Zachary Shahan) and CleanTechnica (including links).

Sign up for daily news updates from CleanTechnica on email. Or follow us on Google News!

Have a tip for CleanTechnica, want to advertise, or want to suggest a guest for our CleanTech Talk podcast? Contact us here.

Former Tesla Battery Expert Leading Lyten Into New Lithium-Sulfur Battery Era — Podcast:

I don't like paywalls. You don't like paywalls. Who likes paywalls? Here at CleanTechnica, we implemented a limited paywall for a while, but it always felt wrong — and it was always tough to decide what we should put behind there. In theory, your most exclusive and best content goes behind a paywall. But then fewer people read it! We just don't like paywalls, and so we've decided to ditch ours. Unfortunately, the media business is still a tough, cut-throat business with tiny margins. It's a never-ending Olympic challenge to stay above water or even perhaps — gasp — grow. So ...
If you like what we do and want to support us, please chip in a bit monthly via PayPal or Patreon to help our team do what we do! Thank you!
Written By

Zach is tryin' to help society help itself one word at a time. He spends most of his time here on CleanTechnica as its director, chief editor, and CEO. Zach is recognized globally as an electric vehicle, solar energy, and energy storage expert. He has presented about cleantech at conferences in India, the UAE, Ukraine, Poland, Germany, the Netherlands, the USA, Canada, and Curaçao. Zach has long-term investments in Tesla [TSLA], NIO [NIO], Xpeng [XPEV], Ford [F], ChargePoint [CHPT], Amazon [AMZN], Piedmont Lithium [PLL], Lithium Americas [LAC], Albemarle Corporation [ALB], Nouveau Monde Graphite [NMGRF], Talon Metals [TLOFF], Arclight Clean Transition Corp [ACTC], and Starbucks [SBUX]. But he does not offer (explicitly or implicitly) investment advice of any sort.


You May Also Like


As a living document, the strategy is still deeply flawed, but less flawed than the first one. If the DOE updates it every six...

Climate Change

Canada's pipeline to nowhere keeps getting worse and worse for Canadians. And it's not like anyone in Alberta is thanking the federal Liberals for...


We don't need to make 25 times as much biofuel, we need to make perhaps four or five times as much as we do...


Our methane emissions from all the waste material we leave lying around the place is 15%+ as big a problem as the carbon dioxide...

Copyright © 2023 CleanTechnica. The content produced by this site is for entertainment purposes only. Opinions and comments published on this site may not be sanctioned by and do not necessarily represent the views of CleanTechnica, its owners, sponsors, affiliates, or subsidiaries.