Case Study: Solar Shading Analysis
How does Scanifly’s solar shading analysis work?
Scanifly's solar design software allows users to obtain on-site, up-to-date shading analysis
Using local weather data and tracking the sun's path, Scanifly determines TOF, Solar Access, and TSRF values for each solar array of the proposed solar project
Scanifly's shade analysis software is approved by state-level regulatory bodies across the U.S., as well as by many lenders
The virtual solar viewsheds generated are within 1% of SunEye readings at the same site, and, in some cases, >20% more accurate than satellite imagery derived shade reports
Benefits of Scanifly Shade Analysis Software
0
roof climb required
1%
delta from SunEye reading
15 min
onsite to collect data
Tree Heights/Vegetation
Eliminate inaccurate modeling and gain superior solar shading analysis by determining exact size, height, or density of vegetation on or around a proposed site. If sparse trees don’t map as well, import specific genus and species of 3D trees into the Scanifly model.
Rooftop Obstructions
3D map all vent pipes, attic fans, HVAC systems, parapets, and any other structures that could cause even the slightest shading on-site. Not only does this provide enhanced precision of system layouts, but also delivers real-world context and thus improved system performance modeling.
Tall Objects and Structures
Avoid estimating the heights and sizes of anything on-site. By utilizing drones and Scanifly’s 3D modeling software, users can quantify the impact of all objects and structures on system production.
Adjacent Buildings
Nearby buildings can create significant losses. Scanifly’s software performs shading analysis inclusive of any objects 3D mapped by the drone’s camera.
New Build Construction
Create the most up-to-date maps and accurate 3D models of newly completed sites. Often these do not exist in satellite imagery. In some locations, such as California, shading analysis is mandatory for approval by local AHJs or regulatory bodies to obtain financial incentives and a certificate of occupancy.
Interrow Spacing
Simulate shadows between each row of a system to determine optimal spacing. Scanifly’s ground mount tool automatically tracks the topography underneath each array, causing module rows to reflect the wavy terrain beneath it. This enhances shade simulations and provides for more accurate interrow spacing optimization.
Comparison: Scanifly v. SunEye
How does Scanifly’s solar shading analysis compare?
87.88%
using Scanifly Shadow Analysis
88%
using SunEye data
Project Example
E2 Solar began using Scanifly’s solar shading analysis software in March 2020. For their first project, a 9kW site, they already manually taped and conducted a Solmetric SunEye analysis. Here are E2’s conclusions - verbatim:
“E2 Solar is to a point internally to make this our defacto shade tool.
‘I believe using the drone images and modeling software they (Scanifly) use, their sun charts are as accurate (if not even better) than the Solmetric. You can see the results attached are within about 1% of each other.
‘Real’ (drone) images provide better resolution and are not hampered by metal roofs or objects.
It is substantially faster and easier to “simulate” a sun chart from any location on a roof. Using a solmetric becomes very cumbersome to take say 20 shots, where with Scanifly, you can simply plot a sun chart from anywhere in a matter of seconds.
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“...You all know we are conservative, professional, and committed to this industry. I would not make this recommendation if I did not think highly of it and I want my salespeople off the roof!”
Mike Hewitt, VP & Operations Manager, E2 Solar
