RENEWCONNECT - All about renewables & power sector

As the world accelerates toward a cleaner, more sustainable energy future, two technologies have emerged as frontrunners in the race to decarbonize transportation and energy systems:  hydrogen fuel cells  and  battery electric systems . Both offer compelling advantages and face significant challenges. But which of these will ultimately power the future? This article explores the technological, economic, environmental, and infrastructural dimensions of hydrogen and battery technologies, offering a comprehensive comparison to help understand their roles in shaping tomorrow’s energy landscape. The Basics: How Do They Work? Battery Electric Systems Battery electric vehicles (BEVs) use  lithium-ion batteries  to store electricity, which powers an electric motor. These batteries are charged via the electrical grid, either at home or through public charging stations. The process is direct and efficient, with energy conversion rates reaching up to  90...

LTES   (Long Term Energy Storage) refers to technologies capable of storing energy for  six hours or more , with some definitions extending to  10+ hours . These systems are essential for balancing the  intermittent nature of renewable energy  sources like solar and wind, ensuring a  stable and reliable power supply  even when generation is low. 🧪 Key LTES Technologies LTES technologies are categorized into five main types: Flow Batteries Store energy in liquid electrolytes. High scalability and long cycle life. Moderate efficiency (~70–80%). Compressed Air Energy Storage (CAES) Uses electricity to compress air stored in underground caverns or tanks. Air is released to drive turbines when power is needed. Efficiency: ~50–70%. Example: A 300 MW-class CAES facility in China using salt caverns. Liquefied Air/CO₂ Energy Storage Air or CO₂ is liquefied and stored under pressure. Re-gasifi...