Frequently Asked Questions

The colors indicate the status category:

• Announced: Proposed projects that have been described in corporate or government plans or media releases but have not yet taken concrete steps such as applying for permits.
• Pre-construction: Projects that are actively moving forward in seeking governmental approvals, land rights, or financing.
• Construction: Site preparation and equipment installation are underway.
• Shelved: Suspension of operation has been announced, or no progress has been observed for at least two years.
• Cancelled: A cancellation announcement has been made, or no progress has been observed for at least four years.
• Operating: The project has been formally commissioned; commercial operation has begun.
• Mothballed: The project is disused, but not dismantled.
• Retired: The project has been decommissioned.

Each solar phase location is marked “exact” or “approximate.” In the case of exact coordinates, locations are either specifically identified on a mapping service such as Google Maps, Open Street Maps, etc., or gathered from company or government documentation. If the location of a solar farm or proposal is not known, Global Energy Monitor identifies the most accurate location possible based on available information.

If a project is still in the pre-operational phases (announced, pre-construction, or construction), there may be no sign of activity. In other cases, only approximate location information could be found. Finally, satellite photos in some geographies are updated infrequently, so recent activity is not shown.

Location accuracy improves as plants move from early stages of development toward operation. To find out the coordinates of a location and whether a location is exact or approximate, click on the location dot, select the wiki page, and look under “Project Details.”

The objective of the Global Solar Power Tracker is to provide information on utility-scale, electricity-generating solar farm phases with capacities of 1 megawatt (MW) or more globally. Both photovoltaic (PV) and solar thermal, also known as concentrating solar power (CSP) installations are included. The tracker includes every operating solar farm phase 1 MW and higher as well as every announced, pre-construction, under construction and shelved project at or above 20 MW. Some data are also included for plants that are either mothballed, retired, or cancelled. 

Capacities listed in our online summary tables do not include any project phases below the utility-scale threshold of 1 MW. However, solar installations above 1 MW constitute only approximately 57% of all operating solar capacity globally. Therefore, in some instances, the summed solar capacities in summary tables and in the downloadable dataset may still be significantly lower than values listed elsewhere. Global Energy Monitor is currently evaluating strategies for incorporating smaller-scale solar data in future releases.

Further discrepancies may also arise because our online summary tables show the summarized MWac capacity. MWac capacities are always lower than MWp/dc capacities. Learn more about capacity ratings and how we convert all summarized data to AC capacity here.

Capacity is measured in megawatts (MW) and refers to the collective nameplate capacity of the solar farm phase. When possible, the tracker also specifies the capacity rating.

A solar farm phase is generally defined as a group of solar arrays that are installed under one permit, one power purchase agreement, and typically come online at the same time. A solar farm project can be composed of several phases, or just a single phase.

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The tracker was designed and produced by Global Energy Monitor, a network of researchers seeking to develop collaborative informational resources on fossil fuel impacts and alternatives. 

Please refer to the Download Data page for citation guidance.