Wattstanding
Goal Zero Boulder 200 Briefcase

Product image: Goal Zero

Solar panel · Goal Zero

Goal Zero Boulder 200 Briefcase

Goal Zero · 200 W solar panel

The short answer

The Goal Zero Boulder 200 Briefcase is a 200 W solar panel panel. By our calculation it can add roughly 780 Wh on an average Florida/Gulf Coast day and 630 Wh in the Northeast. Goal Zero lists it at $600, about $3.00 per watt.

Rated power
200 W
Type
Solar Panel
Voc
21.8 V
Weight
42 lb
Price seen
$600

Good fit if

  • You want to recharge a power station from sunlight during a multi-day outage
  • Your station's solar input accepts this panel's voltage, current and connector

Look elsewhere if

  • You have not checked your station's solar input limits
  • You need guaranteed charging in winter or under heavy cloud
$599.95Goal Zero listed price (base model) · seen 30 Sep 2026
Check price on Amazon

Every link opens the product page for this exact model. We may earn a commission; it never changes what we publish. Disclosure

How much energy it adds

A 200 W panel produces its rated power only in ideal conditions. Heat, sun angle and cable losses reduce real output; we assume 75% of rating.

Estimated energy per average day, by region
RegionPeak sun hours (approx.)Estimated energy
Florida and the Gulf Coast5.2780 Wh/day
Texas5.0750 Wh/day
California5.5825 Wh/day
Southeast (GA, SC, NC)4.7705 Wh/day
Mid-Atlantic and Northeast4.2630 Wh/day
Midwest and Great Lakes4.2630 Wh/day
Mountain West5.4810 Wh/day
Pacific Northwest3.6540 Wh/day
Wattstanding calculationWattstanding calculation — Wh/day = panel watts × 75% × peak sun hours. For example 200 W × 0.75 × 5.2 h = 780 Wh. Sun-hour figures are approximate annual averages; winter and cloudy days are much lower.

Pairing it with a power station

A power station accepts solar input only within its own voltage and current limits. Compare this panel's figures with the station's stated solar input before connecting anything.

  • Voc 21.8 V

Use the solar recharge calculator to see how many sunny days a station needs.

Fit check before you buy

Checks to make against the power station you plan to charge.

✓ Required? Check firsti Good to know
  • ✓Station solar input limitsVoltage, current and watt limits of the station's solar port.
  • ?ConnectorMatch the panel's connector to the station's cable or adapter.
  • iSpace and anglePanels need open sun and an angle toward it; shade on part of a panel can cut output sharply.

Specifications

Each figure is labelled with where it comes from. Numbered references link to the source list below.

Manufacturer storeRetailer listingWattstanding calculationNot verified

Published specifications

Rated power200 W[S1]Manufacturer store
Cell typeMonocrystalline[S1]Manufacturer store
Open-circuit voltage (Voc)21.8 V[S1]Manufacturer store
Weight42 lb[S1]Manufacturer store
Dimensions40 x 26.75 x 3.5 in (101.6 x 70 x 8.9 cm)[S1]Manufacturer store
Warranty2 Years[S1]Manufacturer store

Wattstanding calculations

Energy per day — Florida and the Gulf Coast780 WhWattstanding calculation
Energy per day — Texas750 WhWattstanding calculation
Energy per day — California825 WhWattstanding calculation
Price per watt$3.00Wattstanding calculation

Limitations to weigh

  • Specifications are the maker's or seller's; Wattstanding has not tested this product.
  • Energy figures are calculations from approximate sun-hour averages, not measurements.
  • Prices change; confirm the price and what is included.

Alternatives worth comparing

Anker SOLIX PS200 Bifacial Portable Solar Panel (AS320111)200 W; $200 less
Jackery SolarSaga 200W200 W; $221 less
BLUETTI 200W Portable Solar Panel200 W; $251 less
EcoFlow NextGen 220W Bifacial Portable Solar Panel220 W; $201 less

Where to buy

Our link opens this exact product page. Prices and stock change; check before you order.

$599.95Goal Zero listed price (base model) · seen 30 Sep 2026
Check price on Amazon

Every link opens the product page for this exact model. We may earn a commission; it never changes what we publish. Disclosure

Questions buyers ask

How much power does the Goal Zero Boulder 200 Briefcase produce?
It is rated 200 W. Real output is usually lower; we estimate about 780 Wh on an average Gulf Coast day.
Where can I buy the Goal Zero Boulder 200 Briefcase?
1 seller list it: Goal Zero.

Sources and verification

  1. Goal Zero — Boulder 200 Briefcase — product page and specifications Retrieved 30 Sep 2026

Wattstanding has not tested this product hands-on. This reference is compiled from the sources above; our calculations are labelled and show their working. Electrical work belongs to a licensed electrician. Last verified 30 Sep 2026. How we work