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Download Project Sunroof Data

The data in the Project Sunroof data explorer is available for download, making it easy to compare different areas, incorporate the data into other analyses, or include it in reports and communications. Data in the .CSV format can be used in spreadsheet applications and other analytical tools. For a description of each field, see metadata.csv.

Alternatively, data is available in Google BigQuery by U.S. postal code.

The use of this data is subject to Google's Terms of Service. Feel free to include this data from Project Sunroof in other analyses, materials, reports, and communications with the following attribution:

Source: Google Project Sunroof data explorer (December 2024).
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Estimated rooftop solar potential of Greenville, SC

Last updated: {{ $ctrl.details.getDateUpdatedMillis() | date:'MM/yyyy' }}
Sunlight on rooftops visibility
Shady Sunny
Existing solar arrays visibility_off
Median household income visibility_off
Buildings
84%
solar-viable
16
existing solar installations

Based on 91% data coverage over buildings in this geographic area. All estimates are based on buildings viable for solar panels. Included panels receive at least 75% of the maximum annual sun in the county. For Greenville, the threshold is 1,101 kWh/kW. Read about Project Sunroof’s methodology for defining solar viability below.

Greenville, SC

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Solar panels require optimal light exposure to generate electricity cost-effectively. So things like shading, obstructions, and roof orientation play a critical role in determining the amount of solar electricity that can be generated and the overall viability of solar in an area. As you look at the sunniness of geographic locations in the data explorer, you might notice patterns of sunnier (yellow) and less-sunny (purple) roofs. Greenville, SC, seen here, has distinctly sunnier roofs around main highways. This is because there are fewer trees, resulting in less shade across roofs closest to the highways. In more urban regions, you will often observe very concentrated shady areas of a city, not from trees, but from skyscrapers. Regardless of its cause, shade is a significant factor when assessing solar viability.

Estimated solar installation potential

Overall

Total estimated size and solar electricity production of viable roofs for Greenville, SC

Roofs
84%
Roofs
24.2K
Roof space
41.4M
sq ft
Capacity
940
MW DC
Electricity
1.2M
MWh AC per yr

Total installation size (MW DC)

Total yearly energy generation potential (MWh AC)

Per roof

Median estimated system size and solar electricity production per viable roof for Greenville, SC

Roof space
599
sq ft
Capacity
13.8
kW DC
Electricity
17.2K
kWh AC per yr

Rooftop solar capacity distribution (number of roofs, < 50kW)

Rooftop solar capacity distribution (number of roofs, > 50kW)

Potential impact

If all the viable solar installations were implemented, the amount of avoided CO2 emissions from the electricity sector in Greenville would be:

Carbon dioxide
792K
metric tons
=
Passenger cars
172K
taken off the road for 1 yr
=
Tree seedlings
13.2M
grown for 10 yrs

Solar incentives

Sector
Type
External link
Federal ITC Full Rate Base Credit
COMMERCIAL
FEDERAL TAX CREDIT
Federal PTC Base Rate Base Credit
COMMERCIAL
PRODUCTION
Federal PTC Base Rate Energy Community Bonus
COMMERCIAL
PRODUCTION
Federal ITC Base Rate Domestic Content bonus (Com
COMMERCIAL
FEDERAL TAX CREDIT
Federal ITC Full Rate Domestic Content bonus
COMMERCIAL
FEDERAL TAX CREDIT
Federal ITC Tax Credit
RESIDENTIAL
FEDERAL TAX CREDIT
Federal PTC Full Rate Base Credit
COMMERCIAL
PRODUCTION
Federal ITC Base Rate Energy Community bonus
COMMERCIAL
FEDERAL TAX CREDIT
Federal ITC Base Rate Domestic Content bonus
COMMERCIAL
FEDERAL TAX CREDIT
Federal PTC Base Rate Domestic Content Bonus
COMMERCIAL
PRODUCTION
Federal ITC Base Rate Energy Community bonus (Com
COMMERCIAL
FEDERAL TAX CREDIT
Federal PTC Full Rate Energy Community Bonus
COMMERCIAL
PRODUCTION
SC PV Tax Credit
STATE TAX CREDIT
Federal ITC Base Rate Base Credit
COMMERCIAL
FEDERAL TAX CREDIT
Federal PTC Full Rate Domestic Content Bonus
COMMERCIAL
PRODUCTION
Federal ITC Full Rate Domestic Content bonus (Com
COMMERCIAL
FEDERAL TAX CREDIT
Federal ITC Full Rate Energy Community bonus
COMMERCIAL
FEDERAL TAX CREDIT

Estimate methodology

This tool estimates the technical solar potential of all buildings in a region. Technical potential includes electricity generated by the rooftop area suitable for solar panels assuming economics and grid integration are not a constraint. There are many definitions of technical potential, and other definitions may affect results by 25% or more. Based on Project Sunroof’s definition of technical potential, installations meet the following criteria:

Sunlight
Every included panel receives at least 75% of the maximum annual sun in the county. For Greenville, the threshold is 1,101 kWh/kW.
Installation size
Every included roof has a total potential installation size of at least 2kW.
Space & obstacles
Only areas of the roof with enough space to install 4 adjacent solar panels are included. Obstacles like chimneys are taken into account.
Read more methodology

Attribution

Feel free to include data from Project Sunroof in other materials, reports, and communications with the following attribution:

Source: Project Sunroof data explorer ({{ $ctrl.details.getDateUpdatedMillis() | date:'MMMM y' }}).
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