MAISY Energy Use  and Hourly Loads Databases Summary


MAISY Commercial and Residential Utility Customer Energy Use and Hourly Loads Databases have grown in size from a national/regional database of 10,000 utility customer records in 1995 to more than 7 million US individual commercial and residential utility customers.

Databases include information on building, equipment, operation, occupant, and energy use for each utility customer record. A summary of MAISY Database characteristics is provided below. ( Click Here for a more detailed presentation of MAISY Database content, variables, and applicatications. )

MAISY commercial and residential utility customer data are available for any geographic area of interest from ZIP code areas to metro areas, states, utility service areas, regions or the entire continental US. MAISY data are weather-normalized using TMY3 meteorilogical data for individual weather stations.

MAISY hourly load data for these specific geographic regions differ from other data sources in that they reflect energy use characteristics of ACTUAL commercial buildings and residential dwelling units in those specific areas instead of using fixed, assumed assumptions reflecting electric appliance holdings, household members, income levels, etc. in engineering models that do not accurately reflect utility customers in those areas. CAUTION: The fixed assumption inputs in engineering models (like those in the DOE/NREL Loads data) can result in errors of well over 100% when assessing individual customers, market segments and the entire market associated with a TMY3 or other geographic location. Click Here to see issues related to relying on Department of Energy/NREL/OpenEI sources model-generated energy use and hourly load estimates.

MAISY Commercial and Residential Utility Customer Energy Use and Hourly Load Database Characteristics Provided in Each Customer Record

Annual Energy Use

    •  Electricity, natural gas and fuel oil use
    •  End-use energy (space heat, air conditioning, etc.)
    •  Above data for any geographic area from ZIP to larger geographic areas

Scope 3 Financed Emissions for Residential Mortgages and Commercial Real Estate Loans

    •  ZIP-level electricity, natural gas and fuel oil use
    •  ZIP-level Greenhouse gas emissoins for each fuel type
    •  Above energy & emissions data for residential income & floor space segments
    •  Above energy & emissions data for commercial business types & floor space segments
    •  Above energy & emissions data client-specified customer segments

8,760 Hourly Energy Consumption

    •  Electric consumption (kW), natural gas and fuel oil consumption (kBtu)
    •  End-use energy (space heat, air conditioning, etc.)
    •  Above data for any geographic area from ZIP to larger geographic areas

Sub-Hourly Electricity Consumption

   •   15-minute whole building and end-use electric kW loads
   •   (project basis only) Sub 15-moinute electric whole building and end-use kW loads
    •  Above data for any geographic area from ZIP to larger geographic areas

Other Characteristics

    •  Extensive commercial and residential building, equipment, occupant and operational data
    •  ZIP-code, metropolitan area, utility service area, state, etc. geographic
    •  Commercial and residential hourly and sub-hourly load profile data are also available for all TMY3 locations.
    •  Above data for any geographic area from ZIP to larger geographic areas


MAISY Commercial and residential hourly load profile databases have been developed from dozens of data sources including utility, association, government and Jackson Associates proprietary utility customer surveys and detailed appliance engineering analysis. Databases reflect a statistically valid sample of residential and commercial utility customers throughout the US. Databases are available for metropolitan areas, utility service areas, state and regions and other geographic areas.

The 7 million+ customer MAISY databases are large enough to provide the capability to drill down to individual ZIP code/Metro/State geographic areas and to further refine analysis results for customer detailed segments without sacrificing accuracy. This level of specificity is unmatched by any other data source. Click Here to see a comparison of MAISY and US Department of Energy customer data sources.

Hourly and 15-minute kW load detail is based on metered electricity use data. Half-second to five-minute kW loads are developed using end-use metered data and engineering models of end-use equipment duty cycles, in-rush, starting and steady-state currents.

Databases are provided in CSV or Excel file formats for easy access and analysis supporting deep drill-down operations to develop energy use information for detailed customer segments.

Custom projects can provide MAISY user interface software with intuitive access and analysis capabilities for client-specified applications.

Jackson Associates has been providing energy industry utility customer databases and analysis since 1995. Our client list reflects a who's-who in the energy industry.

MAISY Database Features Summary:

  • The most comprehensive, up-to-date utility customer energy use and customer characteristics for any geographic area in the US

  • More than 7 million individual utility customer records with building, equipment, operating, occupant, end-use and 8760 hourly energy data

  • Electricity use for hourly, 15-minute and 0.5 second to 5 minute kW load intervals

  • Segment variables for each record (e.g., medical office, single-family homes, etc.)

  • CSV and Excel workbook format for easy access and analysis

  • Optional customized database interface software to extract and analyze data for client-specific applications

  • Vetted/applied by over 200 organizations for federal and state appliance and efficiency standards, Utility cost-of-service, energy efficiency and demand response program analysis, technology and energy-related market analysis, product development and assessment, cost-of-service studies, energy efficiency, smart grid analysis, new technology analysis (PV, CHP, battery, fuel cells, thermal storage, wind, flywheels and more), REP and ESCO target marketing, testimony in various state and utility submitals, and more.

2020 Databases Now Available Click Here for additional detail on MAISY Database content, variables, and software.
Hourly-15min-0.5sec loads Click Here to see advantages of MAISY data compared to Department of Energy sources.