At the recent IAA Mobility exhibition in Munich, Rimac Technology, a subsidiary of the Rimac Group, showcased its pioneering solid-state battery pack designed for electric cars. This innovation promises to revolutionize the charging experience, making it quicker than refueling a traditional gasoline vehicle and grabbing a cup of coffee. Developed through a collaborative effort with ProLogium and Mitsubishi Chemical Group, this advanced liquidless high-voltage battery debuted alongside Rimac's existing liquid-based cylindrical cell technology.
While Rimac's cylindrical cells have seen improvements, the solid-state pack truly stands out with its remarkable specifications, particularly its charging speed. A 100-kilowatt-hour solid-state battery can achieve an 80% charge from a 10% state in approximately six and a half minutes. This speed surpasses even the time it takes to fill up a conventional car and handle payment at a gas station, indicating a monumental leap forward for electric vehicle practicality. However, this advancement necessitates that direct current fast chargers, currently offering up to 350 kW, also evolve to support these higher charging rates.
Anticipated for integration into high-performance electric vehicles by the fourth quarter of 2027, Rimac's solid-state battery offers more than just speed. It is engineered to maintain over 95% of its energy even in extreme cold conditions, down to -20 degrees Celsius. Crucially, the cell design eliminates the risk of fire or explosion, significantly enhancing safety. As a key supplier, Rimac Technology's components are already utilized by leading automotive manufacturers such as BMW Group and Porsche.
The technical specifications of the new battery further underscore its superiority. Operating between 540 and 907 volts, it boasts a power density of 2,210 Watts per kilogram and 2,980 Watts per liter. These figures represent a considerable improvement over the current cylindrical cell pack, which offers 1,753 W/kg and 2,575 W/l. Consequently, a 100 kWh solid-state pack requires less space (285 liters compared to 320 liters) and is significantly lighter (384 kg versus 470 kg).
Rimac's solid-state pack utilizes pouch cells, assembled using a cell-to-pack method. The cathode is composed of 90% nickel, 5% manganese, and 5% cobalt, while the anode is 100% silicon. Encased in a thermoplastic composite, the pack employs indirect refrigerant cooling, a departure from the water-glycol cooling system used in cylindrical cells. Additionally, Rimac Technology also showcased new electric drive units and advanced domain controllers at the IAA Mobility event, further solidifying its position as a leader in EV component innovation.
Mercedes-Benz is poised to introduce its new C-Class Electric Vehicle, a sedan counterpart to the recently unveiled GLC EQ. This highly anticipated EV is expected to deliver an impressive driving range of up to 500 miles, placing it in direct competition with BMW's forthcoming i3 electric model. The C-Class EV will leverage Mercedes' advanced 800-volt MB.EA platform, shared with the GLC EQ, ensuring cutting-edge electric performance and technology.
The teaser images reveal a sleek design for the electric C-Class, incorporating a distinctive illuminated shield grille similar to that of the GLC EQ, adorned with hundreds of individual LEDs. The vehicle's aerodynamic profile is anticipated to contribute to its superior range and performance compared to its SUV sibling. Mercedes-AMG is also expected to release high-performance versions of the C-Class EV, potentially featuring extreme power outputs and aggressive styling, mirroring BMW's plans for multiple M-badged i3 variants, including an M3 with over 1,000 horsepower.
Key features trickling down from the GLC EQ to the C-Class Electric will include rear-axle steering, offering enhanced maneuverability with up to 4.5 degrees of wheel turn, along with adjustable air suspension for a refined ride. Inside, drivers can look forward to a massive 39.1-inch dashboard screen, powered by Mercedes' innovative AI-driven MB.OS system. This advanced infotainment system has already received positive feedback from trials in the CLA EV, suggesting a highly intuitive and integrated user experience.
While the C-Class EV maintains a traditional sedan silhouette, Mercedes aims to address past criticisms regarding the 'jellybean' aesthetic of its earlier EQ models by adopting a more conventional yet modern design language. The electric C-Class will boast broad, muscular flanks, presenting a more upright and less overtly aerodynamic stance compared to the current combustion-engine W206 model. This design evolution marks a conscious effort by Mercedes to blend electric efficiency with a visually appealing form.
The official unveiling of the C-Class with EQ technology is projected for sometime next year, coinciding with BMW's planned reveal of its electric i3. With BMW also hinting at a 'Touring' (wagon) body style for the i3, there is a strong possibility that Mercedes-Benz will follow suit with a C-Class EQ wagon, expanding its electric vehicle offerings to cater to a wider range of preferences and needs.
The upcoming C-Class Electric represents a significant step in Mercedes-Benz's electrification strategy, combining advanced electric powertrain technology with luxury features and competitive range to firmly establish its presence in the premium EV market. The anticipated 500-mile range, coupled with sophisticated design and performance, positions the C-Class EV as a formidable contender against rivals like the BMW i3, promising an exciting future for electric luxury sedans.
The American solar industry experienced robust expansion during the initial six months of 2025, adding nearly 18 gigawatts of new power generation to the national grid. This substantial contribution highlights solar and energy storage as the predominant sources of new power, accounting for over four-fifths of all additions. Despite this impressive growth, the sector faces considerable challenges due to recent policy shifts from the current administration, which could significantly impede future development and potentially jeopardize thousands of planned solar initiatives.
In the first half of 2025, the solar energy sector in the United States demonstrated remarkable progress, integrating close to 18 gigawatts of fresh capacity into the grid. This achievement meant that solar and integrated storage solutions were responsible for 82% of all new power installations during this period. However, this promising trajectory is now overshadowed by a series of legislative and administrative actions, notably the HR1 bill and new directives impacting solar permits, which are casting a shadow over the industry's future. The Solar Energy Industries Association (SEIA) and Wood Mackenzie have warned that these measures could result in a reduction of 55 gigawatts in projected solar growth by 2030, a significant 21% decrease from previous forecasts. Abigail Ross Hopper, President and CEO of SEIA, expressed strong concerns, stating that these policies are actively suppressing investment, leading to increased energy costs for both households and businesses, and undermining the stability of the nation's electrical infrastructure. Interestingly, the report also pointed out that a majority of new solar installations, 77%, are located in states that supported the current administration in the 2024 elections, including major players like Texas, Indiana, and Florida. While domestic manufacturing capacity for solar modules expanded by 13 gigawatts in the first half of the year, reaching a total of 55 gigawatts, new investments in upstream manufacturing have recently stagnated due to policy uncertainties. Furthermore, a Department of the Interior order regarding federal permitting could obstruct approximately 44 gigawatts of planned projects, with Arizona, California, and Nevada identified as the most vulnerable states. Michelle Davis, head of solar research at Wood Mackenzie, emphasized the profound challenges created by these evolving federal policies. SEIA has urged Interior Secretary Doug Burgum to reconsider these policies, highlighting the potential for job losses, higher utility bills, and a weakened national economy. The trade group also stressed that hindering solar growth could compromise the country’s standing in the global artificial intelligence competition, advocating for solar and storage to bolster grid reliability.
This report underscores the delicate balance between rapid industrial growth and the impact of governmental policy. It highlights how political decisions can directly influence economic sectors, even those that seem to be thriving. For policymakers, it serves as a crucial reminder of the importance of stable and supportive regulatory environments to foster innovation and sustainable development. For the public, it emphasizes the interconnectedness of energy policy with daily living costs and national strategic priorities, suggesting a need for greater awareness and engagement in discussions around clean energy. The future trajectory of the US solar industry will heavily depend on whether a more conducive policy landscape can be established to harness its full potential for a resilient and affordable energy supply.