Why work with Coulee?
Our team is stacked with designers, product experts, and technical gurus eager to make your solar dream a reality.
We’re 100% employee-owned, so every last one of us has a stake in the success of your solar business. That’s why we do everything in our power to make sure each order goes as smoothly as possible.
If you wanna work with a Chinese solar company that’s obsessed with great service, you’ve come to the right place.
Very Good Quality
Bought Coulee Solar Panels for rooftop solar systems. Very high quality, not at all like “Chinese” past issues. I’m in the PV business and noted that the cells are perfectly in line, solder joints perfect and the lamination has no bubbles or other defects. The junction box on the back is just fine as are the cables. The cells are supposed to be Polycrystalline not Mono but they are not “sparkly”. They are a deep blue-black and frankly, appear to be Mono’s. Haven’t seen cells like this before. Very pleased with these panels.
Delivered Better Than Expected
I’m from Puerto Rico, and we’ve been in a power shutdown for four months on the day of this review. I got to say that the solar panels have delivered better than expected based on price and benefit ratio. Thanks to these I have decided to go full solar, BUT, my advice is that if you want to build a big system, it is better to go with larger high-efficiency panels to simplify and save space.
Consistent Long Term Performance, Good Design
Coulee small solar modules produce significant power even in the shade because they use microcrystalline cells. Unlike low end amorphous solar panels, these will continue to provide some power for 20 to 30 years. The glass over the cells has a mottled surface seemingly designed to reduce reflectivity. I see the measurable voltage output just before sunrise. I see no flaws at all in their products except for the sharp corners, wear gloves! PROS: 1. Good Materials, 2. Superior Microcrystalline Cells; 3. Rapid Delivery; 4. Standard Connectors. CONS: Sharp Corners.
Great Bang For The Buck
Good value panels. No…they’re not the latest and greatest, no they’re not works of art. What they are, quite simply, is decent panels at a fair price that *do what they claim*. They *absolutely* will make their rated power. My panels have several times made 190+W in the dead of winter. That wasn’t in a “test bed” or anything like that… that was in use, in production, monitored by a reliable TM2030 meter. They install well, the frames are solid enough for a wide variety of DIY mounting methods, and shipment was fast and secure. Can’t really ask for much more at the price.
Lithium iron phosphate batteries (LiFePO4 or LFP) offer lots of benefits compared to lead-acid batteries and other lithium batteries. Longer life span, no maintenance, extremely safe, lightweight, improved discharge and charge efficiency, just to name a few. LiFePO4 batteries are not the cheapest in the market, but due to a long life span and zero […]
Coulee Limited (Ningbo Coulee Tech Co., Ltd.), a leading manufacturer of solar products and creators of energy-saving designs for residential, commercial, and industrial applications. Our solar product development skills are categorized into two specialist areas – solar panels (black solar panel, half-cut cell solar panel, small solar panel, flexible solar panel, customized solar panel), and solar-powered solutions.
Coulee solar panels are subjected to over a dozen of individual tests and inspections, including:
1. High Temperature and High Humidity Test. 2. UV Degradation Test. 3. Steel Ball Falling Test. 4. Accelerating Aging Test. 5. Performance Attenuation Test. 6. EL Test. 7. Outdoor Exposure Test. 8. Wind Load Test (IEC61215 TÜV standard). 9. Waterproof test (IEC61730 TÜV standard). 10. PID Resistance Test. 11. Ammonia Resistance Test. 12. Salt Spray Resistance Test. 13. Crosslinking Degree Test, etc.
Thousands of customers worldwide know that they can rely on the exceptional customer service and the highest quality solar products that we provide. Our friendly and experienced staff work closely with you to choose the right solar products that suit your project’s unique needs.
We develop and manufacture future solar solutions for working and living environments. Every day we work on finding new, smart ways for solar projects, large and small, to succeed.
At Coulee Limited, we are committed to providing the highest level of customer service, competitive pricing, speedy delivery, and a comprehensive, cutting-edge product offering. Our ultimate goal is your satisfaction.