
Tier 1 Vs Tier 2 Solar Panels? What to Choose?
October 23, 2023
Multiple solar companies market their solar panels with a label of Tier 1 or Tier 2 solar panels. Although it may sound fancy, it often leaves solar consumers puzzled about its effectiveness.
The good news is that we curated a dedicated blog that will provide clear distinctions between Tier 1 and Tier 2 solar panels. Also, we will be assessing whether these solar panel groups hold any relevancy for solar users considering the solar PV system installation at their places.
What Are Tier 1 Solar Panels?
A short and simple answer to this question is: solar panels manufactured by reputable companies come under the Tier 1 group. At this point, it is necessary to understand that primarily this grouping pertains to 'bankability,' depending exclusively on financial parameters, rather than serving as a solar panel quality indicator. Also, in the solar industry, Tier 1 solar panels are used as a practical mode for identifying top-notch solar panel brands. Some common features of Tier 1 solar panel manufacturers include:- Proven track record of producing extended warranty solar panels, such as five years or more.
- Publicly listed companies on a stock exchange or enterprises that show financial stability with a sound balance sheet.
- Companies with automated manufacturing processes and a high degree of vertical integration.
- Making substantial investments in marketing and branding.
- Maintain a positive reputation for product quality and customer service.
What Are Tier 2 Solar Panels?
Tier 2 solar panels basically come under a catch-all phrase that isolates all solar panels that do not meet the Tier 1 criteria. There are no formal designations or registers for Tier 2 or Tier 3 solar companies. So, the manufacturers or companies that fall outside the Tier 1 category, produce Tier 2 or Tier 3 solar panels, and we can say it is an umbrella term for this purpose.Tier 1 vs Tier 2 Solar Panels
Tier 1 solar manufacturers are fewer in number, as these account for a 2% fraction of the whole solar industry. So, to make vivid distinctions between Tier 1 and Tier 2 or 3, here are three key points to regard:1. Warranty
The primary difference between Tier 1 and Tier 2 solar panels lies in their warranties and reliability. Tier 1 solar panels rouse confidence that their 25-year performance warranty will be supported. However, Tier 2 companies offer satisfactory warranties but less than 25 years with less chance of support in the future.2. Quality
Both Tier 1 and Tier 2 solar panel manufacturers utilize solar cell production lines and solar module assembly lines designed and constructed by the same engineering companies. However, Tier 1 solar companies have a low probability of defects.3. Cost
Since Tier 1 solar panels belong to high-end financial factors, they are 10-30% more costly than their Tier 2 counterparts.TL; DR
| Factors | Tier 1 Solar Panels | Tier 2 Solar Panels |
| Warranty | Reliable 25-year performance warranty | Lower likelihood of warranty support |
| Quality | Reduced likelihood of defects | Potential for defects |
| Cost | higher upfront cost | Often more budget-friendly upfront cost |
| Manufacturer | Established and financially stable companies | A broader range of manufacturers, including smaller or newer companies |




