Commercial and Residential Hourly Load Data Now Available on OpenEI!

Load data

Image source: NREL

 

I am pleased to announce that simulated hourly residential and commercial building load datasets are now available on OpenEI. These datasets are available for all TMY3 locations in the United States. They contain hourly load profile data for 16 commercial building types (based off the DOE commercial reference building models) and residential buildings (based off the Building America House Simulation Protocols). In addition to various building categories, the simulations also consider variations in building construction due to local climate. The data can be accessed here:

 

http://en.openei.org/datasets/dataset/commercial-and-residential-hourly-load-profiles-for-all-tmy3-locations-in-the-united-states

 

You may browse and download individual load profiles (for example, hourly load profile for a large hotel in Tulsa, Oklahoma). You can also download the entire dataset (beware: 4.8 GB zipped, 19 GB uncompressed!). Building load profiles are useful/essential for a variety of applications, including calculating utility bill savings for rooftop solar systems, demand response analyses, and residential/commercial renewable energy feasibility studies. A few examples of projects and publications that relied on earlier versions of the data include:

 

Impacts of Regional Electricity Prices and Building Type on the Economics of Commercial Photovoltaic Systems

http://www.nrel.gov/docs/fy13osti/56461.pdf

 

Breakeven Prices for Photovoltaics on Supermarkets in the United States

http://www.nrel.gov/docs/fy13osti/57276.pdf

 

Maximizing the Value of Photovoltaic Installations on Schools in California: Choosing the Best Electricity Rates

http://www.nrel.gov/docs/fy11osti/51694.pdf

 

The Impacts of Commercial Electric Utility Rate Structure Elements on the Economics of Photovoltaic Systems

http://www.nrel.gov/docs/fy10osti/46782.pdf

 

Special thanks goes to Nathan Clark, who has been working on these datasets for over a year! Nathan has also developed a System Advisor Model (SAM) program that allows users to automatically download appropriate load profiles directly into SAM for analysis and visualization. I’ve attached the program to this post, in case anyone would like to use it (you may need to download the latest SAM version to use it).  This program will also be included in the next public release of SAM (as a sample samUL file). 

 

Questions and comments are always welcome below!

Comments

Bazouing

Residential 8760hr load per TMY zone

Hi, 

I am wondering what kind of residential building the loads are calculated for in the commercial and residential load data.

Size?

Nr of rooms?

etc

Thank you for your help!

 

Ewilson

Residential hourly load building characteristics

Here is a link to a pdf with details on the building characteristics for the homes:

http://en.openei.org/wiki/File:Building_Characteristics_for_Residential_Hourly_Load_Data.pdf

Here's the Building America Climate Zone map used to assign building characteristics listed in the pdf to TMY3 locations:

http://energy.gov/eere/buildings/building-america-climate-specific-guidance

Here's a link to the EnergyPlus documentation, which contains definitions of the output fields in the dataset columns:

http://apps1.eere.energy.gov/buildings/energyplus/pdfs/inputoutputreference.pdf

Whitefoxcy

asking for help about electrical load classification

Now I am perparing a paper about the electrical load classification. Where could I obtain the load dataset including the geology information? For example, the data like:

Load ((x,y), t , u)=load

Which the (x,y)is the site, the T is the time, and U is the utility of the load.

Thanks!

Ewilson

Whitefoxcy, see above

Whitefoxcy, I think my recent response above will give you the details you requested.

Whitefoxcy

About Abbreviation of the database

Dear Ewilson,

I want to know what's the meanings of the following abbreviation of residential data?

1. TMY2, TMY3

2. "Base","High", "Low"

3. "Intl",‘AP“ of "USA_AK_Anchorage.Intl.AP.702730_TMY3_BASE"

4. "Electricity: Facility"; "Gas:Facility";"Heating:Electricity";"Heating:Gas";"Cooling:Electricity"; "HVACFan:Fans:Electricity";"Electricity:HVAC";"Fans:Electricity";"General:InteriorLights:Electricity ";"General:ExteriorLights:Electricity ";"Appl:InteriorEquipment:Electricity";"Misc:InteriorEquipment:Electricity";"Water Heater:WaterSystems:Gas"

Thans a lot for your effort!

Ewilson

About Abbreviation of the database

You should be able to do a web search for your answers to 1 and 3.

The answer to 2. can be found here:

Here is a link to a pdf with details on the building characteristics for the homes:

http://en.openei.org/wiki/File:Building_Characteristics_for_Residential_Hourly_Load_Data.pdf

Here's the Building America Climate Zone map used to assign building characteristics listed in the pdf to TMY3 locations:

http://energy.gov/eere/buildings/building-america-climate-specific-guidance

The answer to 4. can be found here:

Here's a link to the EnergyPlus documentation, which contains definitions of the output fields in the dataset columns:

http://apps1.eere.energy.gov/buildings/energyplus/pdfs/inputoutputreference.pdf

 

RickO

HVAC specs for commercial buildings

I'm developing a cost/benefit analysis for thermal energy storage and need the specs for each of the 16 types of commercial buildings regarding the size and number of air conditioning units, so I can configure and price an appropriate thermal storage system. Is that data available and if so, where?

Ewilson

HVAC specs

HVAC system types can be found in this report: http://www.nrel.gov/docs/fy11osti/46861.pdf (also linked above)

To get HVAC system sizes, you'll have to look at the individual EnergyPlus files (.idf) or the summary spreadsheets since they vary by climate:

"Equipment sizing for all reference building models is determined from design day runs by EnergyPlus for each location with a sizing factor of 1.2. Nominal coefficient of performance (COP), energy efficiency ratio (EER), seasonal energy efficiency ratio (SEER), and boiler and furnace efficiencies are taken from the appropriate energy standard based on equipment type and size."

EnergyPlus files and summary spreadsheets are here: http://energy.gov/eere/buildings/commercial-reference-buildings (also linked above)
Kevin.monk

incorrect location data?

Has anyone noticed that some of the location data is incorrect? For example Dallas, TX Love Field - Commercial is actually Atlanta, GA data. Does anyone know why?