Satellite-Based Performance Ratio | ソーラーエッジ| スマートエネルギーの世界的リーダー

Satellite-Based Performance Ratio

About the Service

A PV system’s performance ratio (PR) is the ratio between actual production of a PV system and received solar irradiation on-site, and is used to evaluate system quality. A common way to measure received solar irradiation is to deploy environmental sensors at the PV site. The downside of using sensors to measure received solar irradiation is that sensors require installation, calibration, and maintenance, all at a cost to the system owner. Sensors have a short warranty period and need to be replaced over the course of a PV system’s lifetime.

SolarEdge has teamed up with Solargis, a solar energy assessment service, to provide Satellite-Based PR for PV systems of all sizes, offering reliable, easily viewable data via the SolarEdge monitoring platform for just pennies a day.

 

Purchase Satellite Based PR

 

Satellite-Based Performance Ratio

Key Benefits

  • Eliminates sensor purchasing, installation, maintenance, cleaning, and replacement costs
  • Prevents possible inaccurate measurements due to environmental factors and improper sensor installation
  • Supports multiple tilts and orientations, no need to install multiple sensors on-site
  • Offers daily and monthly PR calculations
  • Seamlessly visualized on the dashboard of the SolarEdge monitoring platform
  • Provides up to 12 months of historical PR data from day of adding the service
     

 

Satellite-Based Performance Ratio feature highlights

Service Coverage Map

 

Service Coverage Map

Specifications

PR data reporting Accuracy 1 Area coverage 2 Normal PR values 3 Cost per PV site 4
Daily, based on multiple samplings Comparable to irradiance sensors North America, EU, APAC, Australia & Southern Africa 0.6 to 0.9 for new systems Commercial — $99/year or €84/year or ₪386/year

Satellite PR service require a published physical layout. Please read:
Application Note – Site Administration in the Monitoring Portal


1 According to Solargis’ PR calculations which are based on GTI estimates. Additional information on Solargis accuracy and more details
2 Refer to Solargis for detailed coverage area
3NREL, Weather-Corrected Performance Ratio
4 Commercial pricing based on sites ≥15kW

 

Specifications

PR data reporting Daily, based on multiple samplings
Accuracy 1 Comparable to irradiance sensors
Area coverage 2 North America, EU, APAC, Australia & Southern Africa
Normal PR values 3 0.6 to 0.9 for new systems
Cost per PV site 4 Commercial — $99/year or €84/year or ₪386/year

Satellite PR service require a published physical layout. Please read:
Application Note – Site Administration in the Monitoring Portal


1 According to Solargis’ PR calculations which are based on GTI estimates. Additional information on Solargis accuracy and more details
2 Refer to Solargis for detailed coverage area
3NREL, Weather-Corrected Performance Ratio
4 Commercial pricing based on sites ≥15kW

 

Monitoring Satellite-Based PR

Satellite PR Graph 1

Example of a normally functioning PV site as seen on the SolarEdge monitoring platform.

Satellite PR Graph 2Example of a site with low PR indicating a problem as seen on the SolarEdge monitoring platform.

Purchase Satellite Based PR