A new report by Boston Consulting Group reveals that Saudi Arabia’s mega-projects could generate up to 35% of their electricity demand using on-site solar.

The study, titled “Mega-Projects Powered by Renewables: A Practical Playbook for Saudi Arabia,” indicates that these decentralized installations can reduce electricity costs by up to 35%. This development comes as the Kingdom accelerates its efforts to meet Saudi Vision 2030 sustainability targets, which include sourcing 50% of its electricity from renewable sources by 2030. These initiatives are also expected to play a significant role in shaping the country’s economy.

Economic Benefits of On-Site Solar

The report highlights that on-site solar can be deployed across rooftops, carports, and shading structures without requiring additional land. This approach allows developers to preserve architectural designs while generating clean energy. According to the analysis, developers can choose between asset-light models, such as Power Purchase Agreements (PPAs) that eliminate upfront capital, and own-and-operate models that offer higher long-term returns.

“Saudi Arabia’s new cities represent a once-in-a-generation opportunity to build sustainable urban environments from the ground up. The economics are clear: developers can meet almost a third of their electricity demand, while simultaneously advancing the Kingdom’s low-carbon urban development.”

Edoardo Geraci, Managing Director & Partner at BCG
On-site solar panels installed on modern buildings in Saudi Arabia

The own-and-operate model can deliver 35% to 50% higher long-term returns, though it requires initial capital and operational management. By integrating renewable infrastructure early in the design phase, developers can avoid the high costs associated with retrofitting. Additionally, these installations can power local infrastructure, including charging stations for the automotive sector.

Varying Potential Across Building Types

The generation potential varies significantly depending on the asset type. A single-family villa can meet approximately 50% of its annual electricity needs, producing about 35 MWh per year. In contrast, a mid-rise building with higher load density can meet about 15% of its annual demand, generating 190 MWh per year. These decentralized systems can also support localized networks of smart devices to optimize energy consumption.

Regulatory Frameworks and Market Momentum

Momentum for decentralized renewable energy is growing across the Kingdom. For instance, King Abdullah Economic City has an estimated 12.5 megawatt-peak of renewable capacity. This growth is supported by the Saudi Electricity Regulatory Authority’s self-consumption framework, which was introduced in 2022 to provide clear guidelines for behind-the-meter generation.

“Beyond the compelling economics, renewable energy infrastructure offers something equally valuable: the opportunity to shape a distinctive identity for Saudi Arabia’s new cities. Solar canopies, building-integrated photovoltaics, and interactive energy features transform sustainability from a compliance requirement into a signature urban asset.”

Peter Jameson, Managing Director & Partner at BCG
Solar energy infrastructure in a Saudi Arabian smart city

Strategic Roadmap for Developers

The report addresses common concerns regarding space requirements and visual impact, noting that modern solar solutions integrate directly into building facades and rooftops. To maximize returns, BCG recommends that developers conduct early energy assessments and engage with utilities and solar providers during the master planning stage. This proactive integration ensures long-term viability as regional carbon regulations continue to tighten.