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.
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
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
Asked: 2016-01-23 11:31:12 -0500
Seen: 699 times
Last updated: Jan 31 '16
