--- title: "Prospect subscription parameters" slug: "prospect-subscriptions-details" description: "Parameters, data coverage, reference periods, and project and user limits across Solargis Prospect tiers: Basic, Professional, Enterprise." updated: 2026-09-24T09:21:56Z published: 2026-09-24T09:21:56Z canonical: "kb.solargis.com/prospect-subscriptions-details" --- > ## Documentation Index > Fetch the complete documentation index at: https://kb.solargis.com/llms.txt > Use this file to discover all available pages before exploring further. # Prospect subscription parameters **In this document** You'll learn what data parameters, geographical coverage, LTA reference periods, and usage limits (number of projects per year, number of full-access users) are included across the Prospect Basic, Professional, and Enterprise subscription tiers, along with a full parameter specification table (acronym, unit, source, spatial resolution). ## Prospect data parameter specifications The following table details all parameters available in Solargis Prospect application subscriptions. It specifies the acronym, unit, type, source, and spatial resolution for each parameter. > **Tip**: You can collapse the navigation menu and table of contents for better table view. | Parameter | Acronym | Unit | Type | Source | Spatial resolution | Prospect Basic | Prospect Professional/Enterprise | Presentation of LTA data | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Annual (map) | Monthly | 12x24 | | Global horizontal irradiation | GHI | kWh/m2 | Solar | Solargis | 0.0025° (~250 m) | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | | Direct normal irradiation | DNI | kWh/m2 | Solar | Solargis | 0.0025° (~250 m) | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | | Diffuse horizontal irradiation | DIF | kWh/m2 | Solar | Solargis | 0.0025° (~250 m) | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | | Global tilted irradiation for fixed mounting | GTI | kWh/m2 | Solar | Solargis | 0.00083° (~90 m) | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | | Global tilted irradiation for trackers | GTI | kWh/m2 | Solar | Solargis | 0.00083° (~90 m) | | ✔️ | ✔️ | ✔️ | ✔️ | | Annual value of GTI at optimum angle | GTI_OPTA | kWh/m2 | Solar | Solargis | 0.0025° (~250 m) | ✔️ | ✔️ | ✔️ | | | | Ratio of diffuse to global Irradiation | D2G | - | Solar | Solargis | 0.0025° (~250 m) | ✔️ | ✔️ | ✔️ | ✔️ | | | GHI seasonality | GHI_SEASON | - | Solar | Solargis | 0.0025° (~250 m) | ✔️ | ✔️ | ✔️ | | | | DNI seasonality | DNI_SEASON | - | Solar | Solargis | 0.0025° (~250 m) | ✔️ | ✔️ | ✔️ | | | | GHI interannual variability | GHI_VAR_LONG | % | Solar | Solargis | 0.0333° (~3 km) | | ✔️ | ✔️ | | | | GHI short-term variability | GHI_VAR_SHORT | count | Solar | Solargis | 0.0333° (~3 km) | | ✔️ | ✔️ | | | | Optimum angle to maximize annual tilted irradiation on fixed-mounted PV modules | OPTA | ° | Solar | Solargis | 0.0333° (~3 km) | ✔️ | ✔️ | ✔️ | | | | PV cSi yield for fixed mounting | PVOUT | kWh/kWp or MWh * | PV | Solargis | 0.0083° (~1 km) map 0.00083° (~90 m) PV simulator | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | | PV cSi yield for trackers | PVOUT | kWh/kWp or MWh * | PV | Solargis | 0.00083° (~90 m) | | ✔️ | ✔️ | ✔️ | ✔️ | | Performance ratio | PR | % | PV | Solargis | n/a | ✔️ | ✔️ | ✔️ | ✔️ | | | Air temperature at 2 meters | TEMP | °C | Climate | ERA5-Land, ERA5, Solargis | 0.0083° (~1 km) | ✔️ | ✔️ | ✔️ | ✔️ | ✔️ | | Lowest expected operating temperature | TLEO | °C | Climate | ERA5-Land, ERA5, Solargis | 0.0083° (~1 km) | | ✔️ | ✔️ | | | | Highest expected operating temperature | THEO | °C | Climate | ERA5-Land, ERA5, Solargis | 0.0083° (~1 km) | | ✔️ | ✔️ | | | | Daily module temperature amplitude higher than 50 °C | TMOD_AMP50 | days | Climate | ERA5, Solargis | 0.0083° (~1 km) | ✔️ | ✔️ | ✔️ | | | | Wind speed | WS | m/s | Climate | ERA5, Solargis | 0.25° (~28 km) | ✔️ | ✔️ | ✔️ | ✔️ | | | Wind gust 99th percentile | WG_P99 | m/s | Climate | ERA5, Solargis | 0.25° (~28 km) | | ✔️ | ✔️ | | | | Relative humidity | RH | % | Climate | ERA5 | 0.25° (~28 km) | | ✔️ | ✔️ | ✔️ | | | Precipitation | PREC | mm | Climate | ERA5-Land, ERA5, Solargis | 0.1° (~11 km) | | ✔️ | ✔️ | ✔️ | | | Snow days | SNOWD | days | Climate | ERA5-Land, ERA5, Solargis | 0.1° (~11 km) | | ✔️ | ✔️ | ✔️ | | | Cooling degree days | CDD | degree days | Climate | Solargis | 0.0083° (~1 km) | ✔️ | ✔️ | ✔️ | ✔️ | | | Heating degree days | HDD | degree days | Climate | Solargis | 0.0083° (~1 km) | ✔️ | ✔️ | ✔️ | ✔️ | | | UVA radiation | UVA | kWh/m² | Environmental | ERA5, Solargis | 0.25° (~28 km) | ✔️ | ✔️ | ✔️ | | | | UVB radiation | UVB | kWh/m² | Environmental | ERA5, Solargis | 0.25° (~28 km) | ✔️ | ✔️ | ✔️ | | | | Corrosion degradation rate | CORR | % | Environmental | ERA5, Solargis | 0.25° (~28 km) | ✔️ | ✔️ | ✔️ | | | | Precipitable water | PWAT | kg/m² | Environmental | ERA5 | 0.25° (~28 km) | | ✔️ | ✔️ | ✔️ | | | Ground surface albedo | ALB | - | Environmental | MODIS, ERA5, Solargis | 0.0083° (~1 km) | | ✔️ | ✔️ | ✔️ | | | Terrain elevation | ELE | m | Other | SRTM, Solargis | 0.00083° (~90 m) | ✔️ | ✔️ | ✔️ | | | | Terrain slope | SLO | ° | Other | SRTM, Solargis | 0.00083° (~90 m) | ✔️ | ✔️ | ✔️ | | | | Terrain azimuth | AZI | ° | Other | SRTM, Solargis | 0.00083° (~90 m) | ✔️ | ✔️ | ✔️ | | | | Terrain horizon | HOR | - | Other | Solargis | 7.5° horizontally, 0.01° vertically ** | ✔️ | ✔️ | ✔️ | | | | Population density | POPUL | inhabitants/km2 | Other | GPWv4 | 0.0083° (~1 km) | ✔️ | ✔️ | ✔️ | | | | Land cover | LANDC | - | Other | Copernicus C3S, ESA, Solargis | 0.0027° (~300 m) | ✔️ | ✔️ | ✔️ | | | ** PVOUT parameter available as specific output [kWh/kWp] and total output [MWh]* *** based on terrain data with 0.00083° (~90 m) resolution* ## Prospect subscriptions - technical details | | Prospect Basic | Prospect Professional | Prospect Enterprise | | --- | --- | --- | --- | | Geographical coverage | **Solar parameters**: Land surface and coastal seas between latitudes 60°N to 56°S and between latitudes 60°N and 65°N in Scandinavia and America. **PV parameters**: for the specific PV configuration of the Solargis Prospect project Other parameters: Global | | Reference periods for LTA data | **Solar parameters**: from 1994/1999/2005/2007/2018/2019, depending on the region (Figure 1), up to the end of 2025. **Meteorological parameters**: 1994 – 2025 **Albedo**: 2006 - 2015 | | Number of projects per year | 500 | 1000 | Custom | | Number of full-access users | 5 | 10 | Custom | ![](https://cdn.document360.io/ae2d502f-6c0d-4865-a68e-43ad8da61149/Images/Documentation/image-1783683245790.png?sv=2026-02-06&spr=https&st=2026-10-16T20%3A17%3A33Z&se=2026-10-16T21%3A17%3A33Z&sr=c&sp=r&sig=gFGCythEqujzBUJ5a%2BF%2FqNoxTUU36OiqfvfKw%2FmZZ50%3D) ***Figure 1:*** *Temporal coverage of Long-Term Averages data depending on the region.*