Saudi Arabia's Future Cities Could Generate Up to a Third of Electricity Demand with On-Site Solar, BCG Finds

• New report examines the opportunity for integrating renewable energy infrastructure into Saudi Arabia's large-scale urban developments and mega-projects
• The Kingdom's mega-projects are in a position to generate up to 35% of its electricity demand through on-site solar photovoltaics, supporting Vision 2030 sustainability targets

Riyadh, KSA, July 29, 2026 -Saudi Arabia's next generation of mega-projects could generate up to 35% of their own electricity demand on site while reducing costs by a similar margin, according to a new report by Boston Consulting Group (BCG). The findings position the Kingdom at the forefront of sustainable urban development and demonstrate how decentralized renewable energy can help close the gap between surging demand and ambitious climate commitments.

The report, titled Mega-Projects Powered by Renewables: A Practical Playbook for Saudi Arabia, reveals that on-site solar photovoltaics, deployable across rooftops, carports, and shading structures, can meet up to 35% of total electricity demand across an urban development portfolio without requiring additional land or compromising architectural design. For individual assets, the potential is even more striking: a single family villa can meet about 50% of its annual electricity needs, while a mid-rise building with higher load density typically achieves about 15%. These results demonstrate that even without additional land, rooftop solar alone can deliver 35 MWh/year for single-family villas and 190 MWh/ year for mid-rise buildings, with substantial gains in both cost efficiency and emissions reductions. These capabilities arrive at a critical moment as the Kingdom pursues Vision 2030's target of sourcing 50% of electricity from renewable sources and its commitment to achieving net-zero emissions by 2060.

'Saudi Arabia's new cities represent a once-in-a-generation opportunity to build sustainable urban environments from the ground up,' said Edoardo Geraci, Managing Director & Partner, BCG. 'The economics are clear: developers can meet almost a third of their electricity demand, while simultaneously advancing the Kingdom’s low-carbon urban development. Developers can choose between asset-light models such as Power Purchase Agreements, which can eliminate upfront capital investment, and own-and-operate models, which may deliver stronger lifetime returns for those with the right investment horizon.”

The financial case extends beyond immediate cost savings. The own-and-operate approach can deliver 35-50% higher long-term returns but requires upfront capital and operational management, while on-site generation provides a hedge against energy price volatility and positions developments favorably as carbon regulations continue to tighten across the region. Early integration also eliminates the substantial costs associated with retrofitting renewable infrastructure after construction.

Momentum is building across Saudi Arabia

Decentralized renewable energy projects are underway, with rooftop solar developers working on multi-megawatt installations in malls, factories, and residential complexes. King Abdullah Economic City, for example, has an estimated 12.5 megawatt-peak of renewable capacity. The Saudi Electricity Regulatory Authority's self-consumption framework, introduced in 2022, provides clear guidelines for behind-the-meter generation, effectively removing regulatory uncertainty that previously gave developers pause.

'Beyond the compelling economics, renewable energy infrastructure offers something equally valuable: the opportunity to shape a distinctive identity for Saudi Arabia's new cities,' said Peter Jameson, Managing Director & Partner, BCG. 'Solar canopies, building-integrated photovoltaics, and interactive energy features transform sustainability from a compliance requirement into a signature urban asset. These elements enhance appeal for residents, visitors, and investors who increasingly prioritize environmental responsibility in their decisions.'

The report directly addresses persistent misconceptions that have slowed adoption among developers. Concerns that renewables are too space-intensive or visually intrusive for urban settings are countered by modern solar solutions that integrate seamlessly into facades, rooftops, and shade structures. Worries about prohibitive upfront investment have been resolved through third-party financing models requiring no capital outlay. And regulatory complexity has been addressed through SERA's comprehensive framework, which establishes clear procedures for permitting and interconnection.

For developers ready to act, BCG outlines a clear roadmap: conduct early energy assessments to quantify potential savings, engage authorities, utilities, and solar providers from the master planning stage, and embed renewable infrastructure from day one to maximize returns and avoid costly redesigns. The country's exceptional solar irradiance, combined with falling technology costs, creates conditions that make renewables not merely viable but financially advantageous.

Drawing on analysis of solar generation potential, financing structures, and regulatory frameworks, the study provides developers with a comprehensive assessment of the economic and strategic benefits of on-site renewable energy generation. The report offers practical guidance for capturing these benefits through early planning, stakeholder coordination, and technology selection aligned with project requirements and national sustainability objectives.