IcyReaper wants to know more about the panels that we selected. I checked through the previous posts and realized that I hadn’t talked about them at all. The PV panels are the heart of any solar system, so let’s review them.
When considering which manufacturer I wanted to go with for our PV panels, we wanted to go with a large, reputable panel manufacturer. SunPower, REC and Panasonic are three manufacturers widely known for producing some of the highest quality solar panels with low degradation and good warranties. For that reason, they cost up to 30% more, but I wanted reliability.
Although REC was originally a Norwegian company with a good reputation in the industry, their panels are actually made in Singapore. The company has been bought and sold several times, and is now owned by another company headquartered in India. The company makes panels with higher efficiency and more output at up to 470 watts per panel, but they are more expensive than some of their slightly less efficient models. It winds up costing more to get the extra output than it would to simply add more panels, and roof space isn’t an issue for me, as I have a lot of sun facing southern roof to work with.
We decided on the REC Alpha Pure 2 panel for our PV panel. The spec sheet can be found here (pdf alert). The panel is 1.8 meters by 1 meter, and has an output of 420 watts with an efficiency of 22 percent. It has a 20 year warranty and has been tested as retaining 92% of its rated output at 25 years. If the REC panels are installed by a certified installer, the warranty is extended out to 25 years. You can read a review on REC panels here.
REC solar panels operate at high efficiency, have a low 0.25% annual degradation rate and come with an excellent 25-year performance, product and labor warranty. As I mentioned in earlier posts, the panels are designed for 140 mile per hour winds and hailstones of up to 35mm. In my book, that made them durable enough to withstand some serious weather.
The panels look nice, because they are pure black with no light colored lines. They simply look better than the older panels.
The disclaimer: I don’t advertise, and receive nothing for my reviews or articles. I have no relationship with any products, companies, or vendors that I review here, other than being a customer. If I ever *DO* have a financial interest, I will disclose it. Otherwise, I pay what you would pay. No discounts or other incentives here. I only post these things because I think that my readers would be interested.
