All Copper Solar Collectors Engineered for Maximum Thermal Performance
The Starlite SLC Series is AET's all-copper solar collector, built for installations that require long-term reliability and consistent thermal output. With more than 30 years of experience engineering flat plate collectors for residential, commercial, and OEM customers worldwide, we designed the SLC Series around a single objective: putting the best-performing absorber material in the field. The result is a copper solar thermal collector that performs at a high level from day one and holds up over the life of the system.
Why Copper Construction Matters in a Solar Thermal Collector
Copper is not the only material used in flat plate solar collector absorbers, but it is the most thermally conductive. With a thermal conductivity of approximately 400 W/m·K, copper moves heat from the absorber surface to the fluid circuit significantly faster than aluminum alternatives. That difference in conductivity translates directly into higher system efficiency and more consistent hot water output, particularly during periods of lower solar irradiance.
Beyond conductivity, copper offers natural resistance to corrosion that aluminum and other metals do not match. In solar thermal systems, the absorber plate is in continuous contact with heat transfer fluid under pressure and temperature cycling. Copper holds up to these conditions without degrading in ways that can compromise a system over time. For customers evaluating total cost of ownership rather than upfront price alone, a copper flat plate solar collector offers a clear long-term advantage.
This is also why the Starlite SLC Series uses an all-copper absorber throughout, not just copper risers bonded to an aluminum plate. The construction is consistent from header to riser, which eliminates the galvanic corrosion risk that comes with mixing metals inside a pressurized collector.
Starlite SLC Series Collector Features
The Starlite SLC Series is built around the all-copper absorber, but the supporting components are engineered to the same standard. Each feature of this flat plate solar thermal collector is selected to protect thermal performance and extend service life under real operating conditions.
Tempered Glass Glazing
The SLC Series uses low-iron tempered glass glazing, which improves solar transmittance compared to standard glass while maintaining impact resistance. Low-iron glass reduces the greenish tint caused by iron content found in standard glass, allowing more of the solar spectrum to reach the absorber surface. The tempered construction meets the structural requirements for hail, wind load, and thermal stress that outdoor-mounted collectors encounter throughout their service life.
Mounting Configurations
The Starlite SLC collector is compatible with rooftop, ground mount, and system-integrated installations. Flush roof mounting is the most common configuration for residential and light commercial projects. Ground mount frames are available for properties where rooftop installation is not practical. For OEM integrations, the collector can be specified as part of a custom pre-engineered system. Our team works directly with installers and OEM partners to confirm that mounting hardware and collector orientation are matched to the site and load requirements before the project moves forward.
SRCC OG-100 Certification and Incentive Documentation
The Starlite SLC Series carries SRCC OG-100 certification, the industry-standard third-party rating for solar thermal collectors in the United States. This certification confirms that the collector has been independently tested and rated for thermal performance under standardized conditions.
SRCC OG-100 certification is commonly required by state, utility, and local solar incentive programs as part of equipment eligibility review. Incentive availability varies by project location, system configuration, ownership structure, installation date, construction timeline, and the specific program being evaluated.
Customers planning a new installation should confirm current incentive availability with their installer, tax professional, or applicable program administrator. AET provides certification documentation, specifications, and technical resources to support product review, permitting, rebate applications, and project planning.
Where the Starlite SLC Series Performs
The Starlite SLC is specified across a range of system types because the copper flat plate solar collector format delivers reliable thermal output wherever a consistent heat source is needed. Below are the primary use cases we see in the field.
In single-family and small multifamily residential installations, the SLC Series delivers consistent domestic hot water with low ongoing maintenance requirements. Copper's corrosion resistance is particularly valuable in residential systems, where service intervals tend to be less frequent and long-term durability carries significant weight in the buying decision.
For commercial and industrial facilities including hotels, healthcare properties, laundry operations, and food service buildings, the SLC Series can be configured in multi-collector arrays to meet large and predictable daily hot water loads. Our engineering team sizes systems to match actual facility demand rather than applying a standard formula, which means the system you install is sized for your building, not a comparable one.
The SLC Series is also well-established in solar pool and spa heating. Flat plate solar thermal collectors are an efficient fit for pool heating because the load is large and consistent, and pool temperatures do not require the output levels needed for domestic hot water. Replacing gas or electric pool heating with a solar thermal system eliminates a high and recurring operating cost.
OEM Absorber Configurations for Flat Plate Collector Manufacturers
For more than 30 years, AET has supplied flat plate collector manufacturers worldwide with custom absorber plates. AET offers a new generation of absorber configurations designed to deliver higher efficiency, faster production compatibility, and greater design flexibility.
Whether you're building for extreme climates or scaling up production, AET has the solution. Our three new absorber formats are engineered to streamline manufacturing and boost collector performance, so your systems perform better and last longer.
All three formats are available for custom configurations upon request. Contact our engineering team to discuss your specs or download the OEM Absorber Specification Sheet. Let’s build smarter together.
Request a Quote or Talk to Our Engineering Team
Whether you are sizing a residential system or specifying collectors for an OEM build, our team can help you select the right configuration and confirm eligibility for available incentives. Contact us to get started.
Starlite Series Documentation
Frequently Asked Questions
Flat plate collectors use a glazed absorber plate housed in an insulated frame to capture solar energy and transfer it to a fluid circuit. Evacuated tube collectors use a series of glass tubes with a vacuum layer to reduce heat loss, which gives them an advantage in very cold climates where convective heat loss is a significant factor. However, flat plate collectors like the Starlite SLC Series are generally lower in installed cost, easier to service, and more widely supported by installers in the U.S. market. For most domestic hot water and commercial heating installations in moderate to warm climates, a copper flat plate solar collector delivers reliable performance at a lower total system cost.
Copper solar thermal collectors are known for long service life when properly installed and maintained. Because copper does not corrode the way aluminum can under certain fluid and temperature conditions, the absorber plate and internal fluid passages hold up well over decades of operation. AET collectors are backed by a manufacturer warranty, and many systems in the field remain in service well beyond the warranty period. Refer to the AET Collector Warranty documentation on this page for specific terms.
Yes, but the system design needs to account for freeze protection. In climates where temperatures drop below freezing, the system should be configured with a closed-loop indirect heat exchanger using a propylene glycol-water mixture, or a drainback design that removes fluid from the collectors when the pump is not running. The collector itself is not the limiting factor in cold climates. The system design and fluid management approach determine how the installation performs through a freeze event. Our team can help specify the right system configuration for your climate zone.
Yes. The Starlite SLC Series is designed to be connected in series or parallel arrays to meet larger load requirements. Multi-collector configurations are standard in commercial and industrial installations. Array sizing depends on the daily load, available installation area, and local solar resource. Our engineering team works with installers and OEM partners to design arrays that are matched to the project from the start.
SRCC OG-100 is a third-party performance rating issued by the Solar Rating and Certification Corporation. It confirms that a solar thermal collector has been tested for thermal efficiency under standardized conditions and meets established performance benchmarks.
For buyers, the practical significance is that SRCC OG-100 certification is commonly used by state, utility, and local incentive programs when reviewing eligible solar thermal equipment. Selecting a certified collector like the Starlite SLC Series helps provide the documentation needed for product review, permitting, rebate applications, and project planning.
Incentive eligibility varies by program, location, system configuration, ownership structure, installation date, and construction timeline, so customers should confirm current requirements before finalizing a project budget.
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