As part of a obligation to provide data relevant to forecasting Energy from the IR, each applicable wind or its Scheduling Coordinator (SC) must provide the CAISO with accurate information regarding the physical site location of the . The information must include (1) the location (latitude and longitude coordinates) and elevation of each wind turbine hub and (2) the location (latitude and longitude coordinates) and elevation of meteorological collection devices. Meteorological and Production Data Each wind with a maximum rated capacity above 1 MW must install and maintain equipment required by the CAISO to support accurate power generation forecasting and the communication of such forecasts, meteorological data, and other needed data to the CAISO. Communication of such data to the CAISO will be via the Data Processing Gateway (DPG) pursuant to the CAISO’s applicable standard for telemetry from a Participating Generator. In accordance with this requirement, the must install a minimum of one (1) meteorological station measuring barometric pressure, temperature, and wind speed and direction that is representative of the microclimate and winds at hub height on the prevailing upstream side of the wind farm. A second meteorological station is required for plants with rated capacity of at least 5 MW to measure barometric pressure, temperature, and wind speed and direction. The second meteorological station may be co-located on the primary meteorological station tower, and should be placed at a height approximately 30 meters below the average hub height. Existing plants will have 6 months to comply with installation of the second station from the effective date of this section. This requirement will not require any with an existing meteorological station tower(s), or final regulatory approvals to construct a meteorological station tower(s) as of January 2010, to modify the location or configuration of such meteorological station(s). Where placement of the meteorological station tower(s) in accordance with this requirement would cause a reduction in production or violation of a local, state, or federal statute, regulation or ordinance, the CAISO, in coordination with any applicable Forecast Service Provider, will cooperate with the to identify an acceptable placement of the meteorological station tower.
Flat-Plate PV (fixed horizontal /flat roof) R Flat-Plate PV(fixed angle R Flat-Plate PV(fixed angle/azimuth tracking R Flat-Plate PV (DNI zenith & azimuth tracking) R Flat panel Solar (thermal fixed angle mounted) R Flat Solar Thermal Collector (azimuth tracking) R Concentrated PV R R Concentrated Solar Thermal (solar trough zenith tracking) R R Heliostat Power Power(tracking focusing mirrors) R R Greenhouse Power Tower (hot air convection turbine) R Stirling Engine (concentrated solar power generation) R R
Data Collection Units and Accuracy Table 3 details the units and accuracy of measurements to be sent to the CAISO in real time (i.e., 4 seconds). Table 3 Element Device (s) Needed Units Accuracy Global Irradiance Plane-of-Array Irradiance (GPOA) Pyranometer or equivalent W/m 2 ±25W/m2 Global Horizontal Irradiance (GHI) Pyranometer or equivalent W/m 2 ±25W/m2 Global Diffused (GDIFF) Pyranometer or equivalent W/m 2 ±25W/m2 Diffused Irradiance Plane of Array (DPOA Pyranometer or equivalent W/m 2 ±25W/m2 Direct Irradiance (DNI) Pyreheliometer or equivalent W/m 2 ±25W/m2 Back panel temperature for PV type arrays at the array average height Temperature probe for back panel temperature ◦C ± 1° Ambient temperature at the array average height Temperature probe & shield for ambient temp. ◦C ± 1° Barometer Barometric pressure Hecto Pascals HPa ± 60 Pa Wind speed and direction at the average array height Anemometer, wind vane and wind mast m/s deg ±1 m/s ± 5° Real-time Generation Transducers -- Current and Potential Transformers MWs Per CAISO telemetry standards