pywatts/pywatts/fetchdata.py

65 lines
2.0 KiB
Python

from pypvwatts import PVWatts
from pywatts.db import *
from pathlib import Path
def fetch_data(from_lon, to_lon, from_lat, to_lat, step_size=1):
my_api_key = ''
with open(str(Path.home()) + '/pvwatts_api_key.txt', 'r') as file:
my_api_key = file.readline()
# Strip newline
my_api_key = my_api_key[:-1]
p = PVWatts(api_key=my_api_key)
results = []
for longitude in range(from_lon, to_lon, step_size):
for latitude in range(from_lat, to_lat, step_size):
try:
results.append(p.request(
format='JSON', system_capacity=4, module_type=1, array_type=1,
azimuth=190, tilt=40, dataset='intl', timeframe='hourly',
losses=10, lon=longitude, lat=latitude
))
except:
print("Could not fetch all data")
return results
return results
def store_data(result_list):
db.connect()
if not db.table_exists(WeatherStation):
db.create_tables([WeatherStation, Result])
for result in result_list:
if result.errors:
continue
if WeatherStation.select().where(WeatherStation.id == result.station_info['location']).exists():
print("Data for station %s already in database. Skipping." % result.station_info['location'])
continue
station = WeatherStation.create(
longitude=result.station_info['lon'],
latitude=result.station_info['lat'],
location=result.station_info['location'],
elevation=result.station_info['elev'],
city=result.station_info['city'],
state=result.station_info['state'],
id=result.station_info['location'],
)
Result.create(
station=station,
dc_output=result.outputs['dc'],
temperature=result.outputs['tamb'],
wind_speed=result.outputs['wspd']
)
db.close()