The US solar market will hit 11.7GW in 2019, compared to the roughly 4.7GW installed last year, according to Boston-based Lux.
The South American market will grow even faster, albeit from a lower base, reaching 2.5GW in 2019.
Taken together, the Americas region will see its solar market grow at a compound annual growth rate of 16.3%.
By comparison, Asia-Pacific will grow at an annual rate of 8.2%.