Frequently Asked Questions
What is in MoreSun anti-reflective (AR) coatingS?
It varies by formulation, but MoreSun solution is a formulation of partially polymerized siloxanes in a solvent or aqueous mixture; the coating itself cures to form a nominal 100nm to 140nm thick film of nano-structured silica.
Is the MoreSun solution a hazardous material?
Solvent-based MoreSun formulations are flammable, requiring that no ignition sources (smoking, flames) be present within the range of 15m during the coating process.
Does MoreSun Contain NanoPArticles or Rcs particles / Are they Hazardous ?
MoreSun contains no Respirable Crystalline Silica (RCS) particles (identified by OSHA and others as causing a number of health issues, including silicosis). Pellucere Technologies does not use or produce RCS in MoreSun or any of its products.
MoreSun Retrofit: How long will the curing process take until MoreSun is no longer flammable?
MoreSun will no longer be flammable about 60 seconds after being applied to a module.
How does MoreSun AR coating work?
MoreSun AR coatings create a gradient Index of refraction between air and module glass, which leads to lower reflection and higher sunlight absorption by the PV module. The result is an increase of power output/energy production.
Does the MoreSun Coating have any anti-soiling effect?
The MoreSun coating, with its Talus Dirt Rejection Technology, when applied to solar modules can provide significant anti-soiling improvements, resulting in higher performance and reduced washing requirements.
How big is the positive impact of the MoreSun AR Coating anti-soiling effect?
Once applied, it can result in reducing the number of module washes required per year by as much as 50% depending on local conditions. Field tests have shown MoreSun to boost output by as much as 8% in high-dust seasons and by as much as 2% annually in addition to the anti-reflective gains.
MoreSun Retrofit Specific
How much does the MoreSun coating increase the plant performance?
Real case applications of the MoreSun coating show average values of performance increase in the range of 3.4% - 4.5%.
How is the MoreSun AR Coating effect Verified in the Field?
The performance of the MoreSun AR coating is measured in the field using a commercial handheld spectrometer “Commercial Spectrometer Device” that is approved by Pellucere Technologies. The company can also install a side-by-side coated and uncoated test array to monitor the performance on an ongoing basis.
On which type of solar modules can MoreSun AR Coating be applied?
MoreSun AR coating can be applied to most mono-crystalline, poly-crystalline and thin-film modules that do not have factory AR coatings already installed; eligibility is based on module data sheet and measurements made with the Commercial Spectrometer Device.
Is MoreSun Available for Rooftop Systems?
Not at this time. MoreSun is only available for utility-scale solar facilities.
Can MoreSun AR Coating be applied in the field at any time of the year?
MoreSun can only be applied during dry and warm weather. Curing can be detrimentally impacted by extreme cold or wet conditions.
How will MoreSun® AR Coating be applied in the field?
MoreSun AR coating is applied using a proprietary meniscus drag applicator system. Pellucere Technologies has several different types of applicators that will be deployed depending on the specific field conditions.
Does MoreSun AR Coating affect the original module manufacturer warranty?
MoreSun does not affect the warranty in general, but some manufacturers (e.g. First Solar and SunPower) do provide specific guidelines for coating that need to be complied with. This topic is evaluated on a case-by-case basis.
Can MoreSun also be applied to modules that have already been coated with a manufactureR AR coating?
In most cases, MoreSun should not be applied to modules that have already been coated with a manufacturer AR coating. However, Pellucere Technologies will consider application of MoreSun® on modules with an existing AR coating if the modules can be shown to have a material improvement in optical performance or if the modules can benefit from the anti-soiling characteristics of MoreSun’s® Talus DRT technology.
Can I buy MoreSun directly from Pellucere?
No. MoreSun must be professionally applied by a qualified technician. Pellucere Technologies typically provides a full turn-key installation of the MoreSun product for our utility-scale customers.
Can a MoreSun AR coated surface be cleaned?
Yes, treated modules can be cleaned after the coating process. Pellucere Technologies will provide detailed specifications on the proper cleaning procedures.
What is the expected lifetime of the MoreSun® Coating?
Based on accelerated stress testing, the MoreSun AR coating has a life expectancy of more than 10 years in teh US desert Southwest, with little to no degradation in performance.
What are the warranty terms for MoreSun®?
MoreSun® has a 100% pay-back guarantee.