Solar is a great alternative.
The 100 watt flexible solar panel with a controller is from Zamp Solar. This is a Flexi kit that is available for specialty applications.
This is known as the Zamp Solar ZS-100F-30A-DX 100W Flexible Deluxe Solar Panel Kit...
The flexible solar panel is only half an inch thick. The manufacturer uses Sunpower solar cells for high-efficiency light conversion. The efficiency is as high as 25%.
They manufacture the flexible solar panel in the USA.
100-Watt Flexi Kit comes with;
An UV rated 3-port roof cap. (Possible to use for future expansions.)
Solar wire to connect from roof cap to controller. (Without a fuse.)
A flexible solar panel.
A pre-assembled flexible UV rated lead with SAE connectors.
Dual self-resetting circuit breakers.
A 30-Amp, 5-stage PWM charge controller.
Battery wire to connect from controller to battery. (With a fuse.)
Power Output: 100-Watt.
Generates: 5.6 amps.
Weight: 4.65 lbs.
Size: 41.5" x 21.5" x 0.5"
Charge any 12 Volt battery bank, including Lithium.
Max Wattage 510 watts.
Working voltage: 12Volt.
Working current: 30 Amps.
Lowest operating voltage: 8V.
Working Mode: PWM Charging.
Dimensions: 6.14 x 1.5 x 4.7 inches.
Weight: 1.54 pounds.
IP Rating: No, not waterproof.
1. Install the solar panel on a suitable surface.
2. Then the 3 port roof cap.
3. Then you install the 30 amp charge controller in a well-protected area.
4. You should place the batteries somewhere in a safe space. Allowing for enough ventilation to prevent the buildup of unwanted gasses.
5. Now it is a matter of connecting.
6. Before you connect, it is a good idea to place a cloth or a box over the solar panel. This is to prevent any unwanted output before the system is ready for safe operation.
7. Use the chocolate block at the back of the roof cap to connect one end of the solar cable.
8. Connect the other end of the solar cable to the controller using the two O-rings.
9. Now connect the battery cable to the controller using the two O-rings.
10. Connect the other end of the battery cable to the battery by making use of the O-rings at the other end of the cable.
11. Lastly you connect the PV panel to the 3 port cap. This is by making use of the SAE connector at the end of the lead from the solar panel itself.
12. Now you remove the cloth/box from the panel and the system will be in operation.
13. The LCD on the charge controller will show the charging status.
Remember installations are much safer and easier when two or more people are doing it.
The panel does flex, but the recommendation is to flex it as minimally as possible. This is to prevent microcracking.
You cannot use the 100 watt flexible solar panel as a portable solar module.
The charge controller is for indoor use only. It is not IP rated. Do not expose to rain.
They build the solar panel kit in the USA. It is a very good buy.
This is a great design and the customer service is very good.
It is possible to buy an extension cable to make the system more flexible and easier to use.
The 100 watt flexible solar panel kit comes with a 5-year output warranty.
It has a limited 90-day manufacturer warranty
Also a 25-year power output manufacturer warranty
The charge controller comes with a one year warranty.
You can buy the 100 watt flexible solar panel with confidence. Your solar investment will be safe and secure.