Infrastructure funds now dominate clean‑energy investment, capturing 77% of new climate capital, according to a Sightline Climate report. This shift reflects a growing preference for proven infrastructure over untested technologies amid geopolitical uncertainty. The global energy crisis has accelerated demand for reliable power, especially with the AI boom driving higher consumption and climate change increasing the frequency of extreme weather events. As a result, investors are turning to established energy infrastructure to meet the world's complex and expanding needs. Sightline Climate 's analysis shows that infrastructure funds account for 77% of fresh climate capital. BloombergNEF reports that grid spending rose 16% in 2025, reaching $470 billion worldwide for the first time. Forecasts project $5.8 trillion in grid upgrades by 2035, with $1 trillion of that in the United States and $700 billion earmarked for digital grid technology. The report from Semafor warned that the renewed focus on infrastructure could deplete venture capital dry powder faster than it is replenished, potentially hurting early‑stage climate tech startups. JP Morgan highlighted that the aging grid is a national security risk, noting that decades‑old equipment is more likely to fail and vulnerable to extreme weather, cyber risks and geopolitical threats. The IEA found that adding one terawatt‑hour of capacity would require investments of $30 to $110 million in emerging economies and $75 to $150 million in advanced economies, but that the same needs could be met through energy efficiency measures costing only $10 million and $50 million. While the need for grid expansion remains, the data suggest that smarter, more efficient solutions can deliver comparable capacity at a fraction of the cost. Investors who balance infrastructure upgrades with targeted efficiency initiatives are likely to secure resilient, cost‑effective power systems that support the AI‑driven economy.