Work

Solar Energy in 2025: Global Deployment, Cost Trends, and the Role of Energy Storage in Enabling a Resilient Smart Energy Infrastructure

Year: 2026

Type: article

Abstract: The global energy landscape has undergone a dramatic transformation since 2021, with solar photovoltaic (PV) technology emerging as the cornerstone of decarbonisation efforts. This paper provides an updated analysis of solar deployment trends, levelized cost of electricity (LCOE), grid integration challenges, and the critical role of energy storage in enabling a resilient renewable energy grid. Drawing on recent data from the International Renewable Energy Agency (IRENA), Lazard, and BloombergNEF (Bloomberg New Energy Finance), we highlight the unprecedented cost reductions in solar PV and grid scale energy storage, the rapid growth of hybrid solar-storage systems, and the policy frameworks accelerating adoption. The findings underscore the need for integrated energy planning, continued materials innovation, and international collaboration to achieve net-zero targets by 2050.

Source: Energy & environment materials

DOI: 10.1002/eem2.70199

Authors: Ehsan Rezaee, S. Ravi P. Silva

Institution: University of Surrey

Language: English

Topic: Power Systems and Renewable Energy

Subfield: Energy Engineering and Power Technology

Field: Energy

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action, Industry, innovation and infrastructure

Open Access status: hybrid

Estimated APC paid: $3,000