A 300-watt solar panel is an ideal size for getting started with solar power. A 300-watt panel will produce about 1800 watts of peak power in an hour or just under 20 amps at 12 volts. It means this power is capable of being produced on overcast days, but may not be able to keep up with demand on hotter summer afternoons when the sun is more intense.
Here are the top 300 watt solar panels on Amazon and eBay!
1. Renogy 100 Watt Solar Panel
This panel works well as a starting point, giving you a genuine 100 watts of solar power. The cables included will work with most 12-volt battery systems.
There are two things many users like about this panel: the capacity to stand up easily and the price (under $100). It has 4 mounting holes on each corner for screwing into your roof or attaching to a frame.
2. Zamp Solar 100 Watt Solar Panel
This panel is another good option for getting started with solar power, but it does have some differences from the Renogy panel above. This one has cables, that are more compatible with RVs and large battery systems. It also comes with two batteries (10 amp hours each), which can be essential if you are trying to keep your batteries topped off when the sun isn’t out.
This panel is also a little easier to handle, weighing about 25 pounds compared to the Renogy’s 30 pounds. It’s also more expensive at around $180 per panel.
3. Grape Solar 300 Watt Solar Panel
If you are looking for something more powerful, the Grape Solar panel is the way to go. It’s an efficient 300 watts that can produce up to 32 amps at 12 volts in full sun.
It’s also very durable, rated for hail and wind resistance. The junction box is pre-drilled with 8 holes for easy installation. Many users like all the included accessories like the cables, breakers (safety), and even an MPPT charge controller. This panel is on the top end of starting price at around $440 per panel.
4. HQST 100 Watt Solar Panel
If you are looking to jump right into solar power but don’t want to spend too much money, this is a good option for you. The HQST panel is the cheapest 300-watt solar panel we could find, and it comes with an MPPT charge controller as well as all the cables required for installation.
It isn’t as durable or powerful as some of the other panels on this list, but it’s still a valid option to consider if you are looking to get started with solar power.
As you can see, there is no shortage of options when it comes to buying a 300-watt solar panel! You’ll want to think about the installation method, if you are mounting on your roof or in an area where it may be damaged by hail or high winds, make sure you get a panel that is rated for those conditions. On the other hand, if you are looking to build a stand or frame to put your panel in, any of these panels would work fine!