Large-load customers are turning to clean firm technologies like advanced geothermal and small modular nuclear reactors to power their operations, with the help of clean energy tariffs and bilateral customer-utility arrangements. Hyperscalers like Google and Microsoft are investing in clean energy power purchase agreements, focusing on nuclear, hydropower, and geothermal, to drive the development of new technologies and protect ratepayers. Small modular reactors are attracting investments for future data center operations due to their smaller footprint, and durable clean energy tariff designs are crucial for supporting these initiatives. Partnerships between customers and utilities are leading to innovative solutions, such as in Minnesota where Google and Xcel Energy utilized a green energy tariff to bring online a portfolio of resources including solar, wind, and long duration energy storage, resulting in the largest long duration energy storage system seen so far.