Nothing is certain except death, taxes — and the steady decline in the cost of clean energy technologies. That includes batteries. The average price of a lithium-ion battery pack fell 20 percent this ...

Add Yahoo as a preferred source to see more of our stories on Google. Batteries have quickly become a crucial part of the U.S. electricity grid — and a whole lot more are about to come online. Over ...

Data: Ember; Note: Batteries includes power storage, EV batteries and consumer batteries; Chart: Jacque Schrag/Axios China's low-emissions tech exports hit fresh records in August on the strength of ...