Goal Zero Boulder 90 watt large portable solar panel

Quick look at the Goal Zero Bolder 90 solar panel. Description and real world test under a northern winter sun.

Solar Panel specs:
Rated Power: 90W
Open Circuit Voltage: 18-22V
Cell Type: Monocrystalline

Ports
MC4 Connectors: 14-22V, up to 6A (90W max)

Weight: 21.6 lbs (9.8 kg)
Dimensions: 32 x 32 x 1.25 in

Charge times with Goal Zero battery packs
Sherpa 50 1-3 hours
Sherpa 100 3-6 hours
Yeti 400 9-18 hours
Yeti 1250 27-54 hours

Real world wattage test at high noon in the middle of February in sub freezing temps. Still able to draw almost 90 watts in the far northern United States.
northern reaches of the U.S. It draws very little energy when inside the house through window glass.

There are some inconsistent pattering in the panels, found on all of their line of panels. As long as it delivers the advertized wattage (Or close to it.) the cosmetics shouldn't bother me too much.

GoalZero.products are a little more than other companies, but are well integrated into the Goal Zero ecosystem. You can charge other batteries, but will need various connectors to do so.

Goal Zero is a U.S. based company out of Utah but their products are made in China.