The Sun-Cast Foundation: Tower Concentrated Solar Power Technology Forging a New Paradigm for Urban Zero-Carbon Heating

Abstract

Under the dual drivers of the “Dual Carbon” goals and the clean heating revolution, urban energy systems are undergoing comprehensive structural transformation. Tower Concentrated Solar Power (CSP) technology, with its distinctive large-scale thermal energy storage capability and stable, controllable thermal output characteristics, is strategically expanding from the singular domain of power generation into the extensive field of urban baseload heat supply. This paper systematically examines the technical, economic, and environmental rationale for implementing tower CSP technology within urban heating frameworks. Beginning with a detailed elucidation of its integrated “light-heat-storage” technological architecture, the research comprehensively analyzes its comparative advantages over traditional fossil-fuel-based heating systems, particularly emphasizing zero-carbon emissions, energy security enhancement, and long-term economic viability. The central focus of this study addresses the critical land-use and cost constraints inherent in high-density urban environments, proposing innovative implementation pathways including “CSP+” multi-energy complementarity models, distributed integration frameworks, and synergistic policy-finance mechanisms. Through technical validation based on global operational data and system feasibility analysis, this research establishes a robust foundation for the technological migration. Finally, the paper provides multidimensional prospects for tower CSP’s evolving role as both a baseload heat source and integrated multi-energy hub within future smart energy cities, positioning it as an indispensable strategic technology for achieving deep decarbonization in the urban heating sector.