Some of the most common questions we get here at Project Solar are regarding equipment: “If you offer such a low price, you must not have very good equipment, right?” 

While it’s always important to do some research on your system’s components (especially with such a competitive price) we want to set the record straight. We aim to offer the best bang for your buck, and with premium equipment choices, we’re able to offer the same quality of equipment as most traditional solar companies; or better. 

Keep reading to delve deeper into solar equipment quality standards, Project Solar's preferred equipment, and the key factors to consider while comparing offers from various providers. For a comprehensive list of the equipment components we use, including data sheets, you can visit our equipment page.

Solar panel quality is generally assessed based on factors such as cell type, efficiency, wattage, and industry ratings. Let's explore these measures and how Project Solar stacks up against them.

We source exclusively high-quality monocrystalline solar panels, which means each solar cell in our panels is cut from a single silicon crystal, rather than from multiple melted crystals (hence, the “mono”). This single-crystal structure has three main benefits: efficiency, low degradation, and uniform appearance. 

The purity and clarity of a single silicon crystal means that our modules are all-black, with a sleek, consistent appearance. It also means that electrons can move more freely, increasing efficiency and lowering degradation rates.

For more information on monocrystalline panels and other cell types, check out our article on the subject. 

Our black-on-black monocrystalline solar panels offer around 20% efficiency, compared to the average residential panel efficiency of about 18%.

It is true that higher efficiency panels exist, but they’re pretty rare and expensive, and we believe they often come at a premium that isn’t usually justified by marginal gains.

Project Solar uses panels with Tier 1 ratings and IEC 61215 certifications - the gold standard for the industry. These certifications show that the panels can withstand tough conditions, and are built to a quality standard.

Even more importantly, they ensure that our panel manufacturers are legitimate and reliable, capable of meeting their 25-year warranty requirements. For a limited time, we're including our SolarCare™ warranty—a $3,000 value—at no extra cost. This package guarantees a 25-year production guarantee, 10-year workmanship warranty, and 24/7 system monitoring, providing comprehensive protection and support.

Inverter quality is crucial for converting solar energy into usable power. Factors like inverter type, expandability, and failure rate should guide your choice.

We use Enphase microinverters, known for their reliability and panel-by-panel efficiency. Unlike string inverters, microinverters prevent a single point of failure for your system and offer longer warranties, which is ideal for customers who are purchasing their systems (rather than leasing).

If one panel or inverter goes out, the rest of the system is unaffected while the problem is investigated. To learn more about the different types of inverters, check out this article.

With Enphase microinverters, each panel has its own inverter. This greatly simplifies system expansion. 

Additionally, Enphase boasts a 25 year warranty for their microinverters: twice as long as the industry standard for string inverters. This shows that Enphase has great confidence in their low failure rate.