Dusty solar panels 30% less efficient

Newly published research by Engineering researchers from Kathmandu found that a dusty panel gathers 29.8% less energy if they are not cleaned for 5 months in dry weather – we are surprised it is not more.

The findings in Elsevier-published Solar Power magazine studied “soiling and its effect on performance of solar modules in regions with a high deposition of dust and low frequency and less intensity of rain.” But some areas with abundant rainfall may also suffer from high dust deposits in the dry season. Kathmandu, with its peculiar environment conditions, suffers high air pollution and minimum rainfall during the dry winter. The study measured the effect of dust on PV modules taking into account meteorological variables for Kathmandu .

During the study period of 5 months, the efficiency of a dusty solar module left to untouched decreased by 29.76% compared to a similar module which was cleaned on daily basis.

Dust deposit density on the uncleaned PV module accounted to 9.6711 g/m2 over the study period. The research also showed that dust accumulation is concentrated on the lower half of the PV modules with a consequent risk of hot spots which could eventually lead to permanent module damage.

The research was carried out by Basant Raj Paudyaland Shree Raj Shakya of the Institute of Engineering at Tribhuvan University, Kathmandu

powkey Portable Power Station 350W, 260Wh/70,000mAh Backup Lithium Battery, 110V Pure Sine Wave Power Bank with 2 AC Outlets, Portable Generator for Outdoors Camping Travel Hunting Emergency

Now retrieving the rating.

$192.98 (as of April 26, 2024 14:01 GMT +01:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

🔌【Multiple Charging Ports】: 2* Pure Sine Wave AC outlets (110V 350W ), 2* USB-A ports (5V, 3.1A total),1* USB-C port , 2* DC Outputs(12V 8A; 24V 3A) and 1* 12V DC car port to charge your devices, and 1 * 10W wireless charging pad are also equipped. 🔋... read more

200W Portable Power Station, Powkey 120Wh/33,000mAh Power Bank with AC Outlet, 110V 6 Outputs Solar Generator External Battery Pack with LED Light for Home Use and Outdoor Camping

Now retrieving the rating.

31% Off $149.99 $102.99 (as of April 26, 2024 14:01 GMT +01:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

120WH CAPACITY: The power station has a power capacity of 120Wh/33,000mAh which the camping power supply can power most electronic devices efficiently. It can fully charge mobile phone 10+ times, the laptop 2 times, the CPAP machine 3 hours (the time... read more

Foldable Solar Panel Charger 60W with 18V DC Output (11 Connectors) for 100W~350W Portable Power Stations Jackery/Rockpals/Flashfish/Enginstar, Portable Solar Generator for Outdoor Camping Van RV Trip

Now retrieving the rating.

$98.99 (as of April 26, 2024 14:01 GMT +01:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

HIGH CONVERSION EFFICIENCY: With a 22% high conversion efficiency of this 60W mono crystalline solar panel, it’s able to produce electricity in low light outdoor environment (Recommend > 40000Lux) to charge your devices in shorter time. 4 OUTPUT PORT... read more

10W USB LED Light for Camping Garage Warehouse Car Truck Fishing Boat Outdoor Portable Bulb, Emergency Light, Children Bed Lamp

Now retrieving the rating.

$9.99 (as of April 26, 2024 14:01 GMT +01:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

【10W USB LED Light】: With 6 Feet long cable, this is a super bright camping lantern to your outdoor event with a 10W decorative dimmable hanging LED Light! Let it be your yard/garden/patio/porch/ barbecue or birthday party USB powered Led light. 【3 C... read more

EnginStar Portable Power Station 300W 296Wh Battery Bank with 110V Pure Sine Wave AC Outlet for Outdoors Camping Hunting and Emergency, 80000mAh Backup Battery Power Supply for CPAP

Now retrieving the rating.

15% Off $259.99 $219.99 (as of April 26, 2024 14:01 GMT +01:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

PORTABLE BUT POWERFUL: EnginStar Portable Power Station with ETL Certification, and the portable size of 9 x 5.5 x 7.5 inches, weights only 6.5 pounds, but armed with 296wh capacity and 300W AC output, EnginStar portable power station can provide eno... read more