Library.

“At least 90% of new electricity generating capacity planned for addition in the United States in 2026 is from solar, wind, or battery storage.”

This claim is true. According to the U.S. Energy Information Administration's February 2026 data, solar (51%), battery storage (28%), and wind (14%) together account for 93% of the 86 GW of planned utility-scale capacity additions in 2026 — comfortably exceeding the 90% threshold. These figures are corroborated by multiple independent energy publications. The data reflects planned additions as currently reported and could shift slightly as projects are updated, but the 3-percentage-point margin above 90% makes a drop below that threshold unlikely.

“Frequently charging a smartphone battery to 100% accelerates battery degradation compared to charging to lower levels.”

The claim is directionally accurate: peer-reviewed research confirms that higher state-of-charge accelerates lithium-ion battery degradation through well-understood mechanisms like SEI growth and lithium plating. Real-world smartphone tests also show measurably better capacity retention when charging is capped below 100%. However, the claim lacks important context: modern phones use battery management systems that reduce stress near full charge, and the practical effect over a typical phone's lifespan is often modest — not dramatic. The biggest factor is time spent at high charge levels, not simply reaching 100%.