Generation of Local Solar Atlases: illustrated with the PACA Atlas

User workshop: “Usage and Demonstration of Downstream Services in Solar Energy”

Wed. 19 June 2013

Service S1: “Local solar atlas for Provence”

Monthly and yearly sum of GHI map (kWh/m2) for Europe from HelioClim

databases (res. ~5 km, method Heliosat-2 applied to Meteosat Second

Generation images)

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High resolution (200 m) monthly and yearly sums of

irradiations (kWh/m2) for the region PACA

GHI

DHI

BNI

June 19th 2013 – 14:00-18:00

100 km – NASA SSE

June 19th 2013 – 14:00-18:00

40 km – NREL low res

June 19th 2013 – 14:00-18:00

10 km – NREL high res

June 19th 2013 – 14:00-18:00

4 km – HelioClim 3

June 19th 2013 – 14:00-18:00

250 m – PACA Atlas

June 19th 2013 – 14:00-18:00

Create a solar atlas at a glance

Monthly and yearly sum of GHI map (kWh/m2) for Europe from HelioClim

databases (res. ~5 km, method Heliosat-2 applied to Meteosat Second

Generation images)

-20 -10 0 10 20 30 4035

40

45

50

55

1000

1200

1400

1600

1800

2000

2200

2400

High resolution (200 m) monthly and yearly sums of

irradiations (kWh/m2) for the region PACA

GHI

DHI

BNI

•Downscaling GHI map •Irradiation components on tilted plane (Ruiz-Arias et al. 2011)

SRTM: 100 m DEM

Local horizon computation

Calibration with 20 ground stations of Météo-France and 3 dedicated ground stations (RSP*)

Raw HC-3

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* RSP: rotating shadowed pyranometer

June 19th 2013 – 14:00-18:00

SolarAtlas service description

• Production of a high resolution annual/monthly Irradiation maps set with: – Effect of altitude

– Effect of shadows from horizon

– Local calibration of irradiation from on-ground pyranometric measurements (if available)

• Can be created for any zone covered by the Meteosat satellite with a resolution function of the DEM (altitude) data resolution

Solar Atlas service main steps

1. Definition of the zone

2. Irradiation long term data for the zone

3. DEM data

4. Ground station data for calibration

5. Calibration of the irradiation data

6. Computation of the high resolution maps with shadow effect

7. Ancillary data:

8. Delivery of the Solar Atlas to the Customer

Steps 2 and 3 - Irradiation and DEM data

• Irradiation will be based on the Helioclim3 (HC3) data (or the latest database available) – Meteosat covered zone, ~4 km resolution

• DEM altitude data can be:

– SRTM elevation model (worldwide, 100 m resolution)

– Customer DEM data (ex: “Atlas vallée du VAR”, 5 m resolution from IGN)

Steps 2 and 3 - Irradiation and DEM data

DEM “Atlas vallée du VAR”, 5 m high resolution data

Step 4 – Ground station irradiation data

Different cases:

– PACA Atlas, 250m (done):

• 29 locations daily GHI data

• One year, 15 min GHI+BNI data from 3 sites

– Vallée du Var atlas, 10m (in preparation):

• Hourly GHI data from Nice station

• One year, 15 min GHI+BNI data from Nice site

– SolarMedAtlas, 1 km MENA region (done):

– Morocco Atlas, 1 km (project):

Step 7 – Ancillary data - Shapefiles

• http://www.diva-gis.org/gdata

• http://www.naturalearthdata.com/downloads

• http://www.vdstech.com/world-data.aspx

Step 8 – Visualization WEB service

http://www.webservice-energy.org/viewer/heron/applications/atlas-paca/

PACA Atlas – GIS Analysis

Initial Direct Normal Irradiation Map June 19th 2013 – 14:00-18:00

PACA Atlas – GIS Analysis

SRTM Digital Elevation model June 19th 2013 – 14:00-18:00

PACA Atlas – GIS Analysis

SRTM with slope>10° exclusion June 19th 2013 – 14:00-18:00

PACA Atlas – GIS Analysis

DNI with slope>10° exclusion June 19th 2013 – 14:00-18:00

PACA Atlas – GIS Analysis

20kV 65kV and 225 kV source points June 19th 2013 – 14:00-18:00

PACA Atlas – GIS Analysis

15 km zone from source points June 19th 2013 – 14:00-18:00

PACA Atlas – GIS Analysis

Final restricted zone June 19th 2013 – 14:00-18:00

PACA Atlas – GIS Analysis

Adding lakes June 19th 2013 – 14:00-18:00

PACA Atlas – GIS Analysis

Adding national parks June 19th 2013 – 14:00-18:00

PACA Atlas – GIS Analysis

Adding regional parks June 19th 2013 – 14:00-18:00

PACA Atlas – GIS Analysis

Final zone with all exclusions June 19th 2013 – 14:00-18:00