Is there a way to grab the peak (total or net) monthly electricity demand from the OpenStudio SDK or even EnergyPlus SQL file? I see how to get peak monthly use by fuel type end-use, but summing those together is not only annoying, it also doesn't actually give the monthly peak, because the end-use peaks are not likely to be concurrent.
Electricity:Facility at Monthly resolutionGet the data out of the sql file using something like this:
# Get the weather file run period (as opposed to design day run period)
ann_env_pd = nil
sql.availableEnvPeriods.each do |env_pd|
env_type = sql.environmentType(env_pd)
if env_type.is_initialized
if env_type.get == OpenStudio::EnvironmentType.new("WeatherRunPeriod")
ann_env_pd = env_pd
end
end
end
# Only try to get the annual peak demand if an annual simulation was run
exit if ann_env_pd.empty?
# Get the timeseries data
elec = sql.timeSeries(ann_env_pd, "Monthly", "Electricity:Facility", "")
if elec.is_initialized
elec = elec.get
elec.values.each do |val|
# There should be 12 monthly values
end
end
I was using sql queries to get data aggregated from sqlite. Just for knowledge what language are you both using to fetch the data. Is this Python syntax?
Close enough, it's Ruby.
Maybe I didn't phrase the question correctly, but what I actually needed was the peak (hourly) usage in each month. And the way to do that is this:
env_pd = sql_file.availableEnvPeriods[0]
elec_ts = sql_file.timeSeries(env_pd, "Hourly", "Electricity:Facility")
if elec_ts.length > 0
elec_ts = elec_ts[0]
year = elec_ts.firstReportDateTime.date.assumedBaseYear
# Grab Jan time series and find the max
elec_ts_Jan = elec_ts.values(OpenStudio::DateTime.new(OpenStudio::Date.new(OpenStudio::MonthOfYear.new("Jan"), 1, year), OpenStudio::Time.new(0,0)),
OpenStudio::DateTime.new(OpenStudio::Date.new(OpenStudio::MonthOfYear.new("Jan"), 31, year), OpenStudio::Time.new(0,23)))
for i in 0 .. elec_ts_Jan.length-1 do
if elec_ts_Jan[i] > peak_electricity_Jan
peak_electricity_Jan = elec_ts_Jan[i]
end
end
# Repeat for other months
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