"When the tariffs take effect, February 7th, 2018, they’ll add 30% to the price of most imported solar panels (aka modules). That’s a pretty huge markup, but because module cost is only a small part of the overall cost of installing a system, the final price you’d pay to a solar installer will only go up by a little.
In an earlier article, we wrote about a typical 5-kW solar system costing $15,000, with solar modules representing about $1,750. A 30% increase in module price would translate to $525 more for the whole installation, which can be erased by about half a year of the electricity produced by the panels. That’s not so bad!
After 2018, the tariff will “step down” by 5% per year, ending at 15% through 2021. So that $500 premium goes down to about $250, and goes away after 2021, but you shouldn’t wait that long to install, because of the “other ITC”."
https://solarpowerrocks.com/affordable-solar/donald-trumps-s...
"When the tariffs take effect, February 7th, 2018, they’ll add 30% to the price of most imported solar panels (aka modules). That’s a pretty huge markup, but because module cost is only a small part of the overall cost of installing a system, the final price you’d pay to a solar installer will only go up by a little.
In an earlier article, we wrote about a typical 5-kW solar system costing $15,000, with solar modules representing about $1,750. A 30% increase in module price would translate to $525 more for the whole installation, which can be erased by about half a year of the electricity produced by the panels. That’s not so bad!
After 2018, the tariff will “step down” by 5% per year, ending at 15% through 2021. So that $500 premium goes down to about $250, and goes away after 2021, but you shouldn’t wait that long to install, because of the “other ITC”."