Wind-Displaceable Flexible Strip for Solar Panel Array Cleaning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The accumulation of dust and dirt on solar panels reduces the efficiency of solar energy production over time, leading to increased costs beyond theoretical calculations.
Innovation Solution
A method and system using an elongated flexible, translucent strip anchored to solar panels, allowing it to be wind-displaceable and span multiple panels, effectively cleaning the panels by reaching a majority of the solar collecting area without requiring additional power or infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cleaning methods are used, then cleaning effectiveness is improved, but system complexity and cost increase
Solution Approach 1:
The cleaning system utilizes wind power and gravity to automatically move the cleaning element across solar panels without requiring external power sources, control systems, or manual operation. The flexible element is anchored at both ends and uses wind-induced motion to clean panels autonomously, eliminating the need for motors, controllers, or complex mechanical drive systems.
Solution Approach 2:
The patent replaces traditional mechanical cleaning systems (motors, belts, gears) with a passive wind-driven flexible element system. Instead of using powered mechanical actuators to move cleaning components, the system harnesses natural wind forces to drive the flexible cleaning element across the panel surfaces.
2Ease of operation
If flexible cleaning elements are used, then ease of deployment is improved, but cleaning coverage may be insufficient
Solution Approach 1:
The cleaning system divides the solar panel array into multiple cleaning zones by anchoring the flexible element at both ends to create distinct spans. Each span independently cleans a specific set of panels, allowing the system to scale to large arrays by adding more anchored sections. This segmentation enables easy deployment on arrays of various sizes while maintaining adequate cleaning coverage.
Solution Approach 2:
The flexible cleaning element is designed to move not only horizontally across panels but also vertically through wind-induced fluttering and undulation. This multi-dimensional motion allows a single anchored element to clean multiple rows of panels, significantly expanding the effective cleaning area without increasing system complexity.
3Object-generated harmful factors
If the strip is made translucent, then shading effects are reduced, but structural strength may decrease
Solution Approach 1:
The flexible cleaning element is constructed as a composite structure combining a translucent strip with an embedded reinforcement element. The translucent strip (made of materials like polyethylene or polypropylene) minimizes shading on the solar panels, while the reinforcement element (such as a steel cable, rod, or tube) provides the necessary structural strength and rigidity to maintain the element's shape and withstand environmental forces.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution maintains a high level of solar panel efficiency with minimal maintenance, reducing power output drops by 8% compared to uncleaned panels, while being cost-effective and easy to deploy, with the strip's design minimizing shading effects and accommodating various weather conditions.
Implementation Method 1
the portion of the strip is configured to be wind-displaceable so as to contribute to cleaning of at least two of the solar panels
Data Source
AI summary
Devices and methods for cleaning an array of solar panels in side-by-side relation employ one or more elongated flexible elements, preferably implemented as translucent strips (14a, 14b, 14c, 14d), anchored at their ends relative to the array of solar panels (12). Each strip spans two or more solar panels, and is wind-displaceable so as to contribute to cleaning of at least two of the solar panels (12).