The global renewable energy sector is experiencing a transformative shift, driven by soaring demand and technological advancements. Clean electricity demand is surging, particularly from transportation and AI-driven data centers, while the costs of solar and wind installations continue to decline. This confluence of factors is propelling the renewable energy industry forward, but it also underscores a critical need for energy storage solutions to ensure grid stability.
Energy storage systems, particularly batteries, are becoming indispensable components of modern energy infrastructure. They capture excess power during peak generation and release it during high demand, maintaining a continuous energy supply. The energy storage market is expanding rapidly, fueled by declining battery costs, government incentives, and an increasing volume of renewable projects. This growth is not just supplementary but integral to the renewable energy sector’s development.
The latest data from global energy think tank Ember reveals that clean power surpassed 40% of global electricity generation in 2024, driven by record growth in renewables. This growth was significantly aided by advances in energy storage capacity, with global stationary energy storage installations surging 40% to a record 170 GWh in 2024, as reported by BloombergNEF (BNEF). Utility providers like DTE Energy and Ameren Corp. are capitalizing on these opportunities by rapidly expanding their renewable generation portfolios. Meanwhile, companies like Sunrun, which offer solar panel and battery storage products, are already well-positioned in the clean energy investment landscape.
Looking ahead, BNEF’s New Energy Outlook 2025 Report projects that global power generation from renewables will rise 84% over the next five years and double again by 2050. To support this expansion, BNEF expects global energy storage additions to grow 35% this year. These projections highlight substantial growth opportunities for investors in the renewable energy and battery storage sectors.
Beyond demand, strong policy support, fiscal incentives, net-zero commitments, and declining solar and wind installation costs are enhancing the competitiveness of clean energy firms. These factors collectively enable sustainable long-term value creation in the global energy transition.
The implications for the market are profound. The rapid expansion of renewable energy and energy storage capacity is reshaping the energy landscape, creating new opportunities and challenges. Investors are increasingly looking towards renewable energy and battery storage stocks, recognizing their potential for long-term growth. Companies like Sunrun, DTE Energy, and Ameren are at the forefront of this transition, investing heavily in renewable generation and energy storage projects.
Sunrun, for instance, is expanding its footprint in the solar market with a focus on home battery storage and solar systems. The company’s subscriber additions increased 15% year over year in the second quarter of 2025, driven by a record-high storage attachment rate of 70%. Sunrun aims to have more than 10 GWh of dispatchable capacity online by 2029 and an aggregate subscriber value of $5.7-$6 billion by the end of 2025.
DTE Energy, a leading electricity provider in Michigan, is investing $10 billion in clean energy generation over the next decade. The company plans to add 900 MW of renewables per year on average over the next five years and aims to have more than 2,900 MW of energy storage by 2042. These investments reflect DTE Energy’s long-term vision of delivering reliable, affordable, and clean energy to its customers.
Ameren, another key player, is expanding its renewable portfolio by adding 3,200 MWs of renewable generation by 2030 and an additional 1,500 MWs by 2035. The company also aims to add 1,000 MWs of battery storage by the end of 2030 and an additional 800 MWs by 2042. Ameren’s investments in renewable energy and battery storage projects underscore its commitment to a cleaner energy future.
The market’s response to these developments is evident in the projected sales growth for these companies. Sunrun’s sales are expected to rise by 11.2% and 11.4% in 2025 and 2026, respectively. DTE Energy’s sales are projected to grow by 15.5% and 3.9% in 2025 and 2026, respectively, with a long-term earnings growth rate of 7%. Ameren’s sales are anticipated to increase by 12.2% and 5.4% in 2025 and 2026, respectively, with a long-term earnings growth rate of 7.9%.
This surge in renewable energy and energy storage capacity is not just a trend but a fundamental shift in the energy