Assertion: solar cell's efficiency | /r/CapableOf | rise to 5%
Facets:
value: in 2006
type: TEMPORAL
value: from 2.5%
type: OTHER
Source sentences:
text: However, the efficiencies of these new types of photovoltaic cells have risen from 2.5% in 2001, to 5% in 2006, to greater than 10% in 2011.