The collaborative project “ AddESun ” aiming to safeguard the future of lead-acid batteries was launched in September 2017. The list of project goals includes a more sustainable production, improved charging behavior, longer service life and higher power density.
[pdf] German solar battery manufacturers like Sonnen, E3/DC, and SENEC lead the industry with advanced lithium-ion and hybrid storage systems. These brands prioritize energy efficiency, smart grid integration, and sustainable production methods.
[pdf] $280 - $580 per kWh (installed cost), though of course this will vary from region to region depending on economic levels. For large containerized systems (e.g., 100 kWh or more), the cost can drop to $180 - $300 per kWh.
[pdf] 
