icon HOMER Grid Version History

This page contains the version history for HOMER Grid, released in March 2018. HOMER Pro and earlier HOMER version history is here.

Download the latest HOMER Grid version here.

HOMER Grid Version 1.2.8 (November 15, 2018)
    Features and Improvements
    • Fixed issue displaying synthetic load's peak (kW) after editing the load variability
    • Fixed issue demand rates on holidays (or other calendars)

HOMER Grid Version 1.2.7 (October 2, 2018)
    Features and Improvements
    • Fixed fuel consumption issue when comparing economics
    • Fixed issue with the text box not updating input information
    • Fixed issue with opening saved HOMER Grid file

HOMER Grid Version 1.2.6 (October 1, 2018)
    Features and Improvements
    • Added warning when a PV component with zero costs is used in conjunction with the optimizer
    • Improved generator cycling dispatch during an outage
    • Added text and Genability logo to Tariff Chooser
    • Improved ability to activate concurrent licenses on multiple computers
    • Fixed issue related to floating point error
    • Fixed issue with reporting the results' compare economics
    • Autosaved files are saved as .hgrid files
    • Grid Sale Limit has a 1GW default for imported tariffs and Genability tariffs
    • Maintenance Schedule for Storage is temporarily disabled pending complete fix
    • Axis of Optimization Plot for Graphical Results is scalable

HOMER Grid Version 1.2.5 (September 7, 2018)
    Features and Improvements
    • Display 'old host ID' on the License Manager page
    • Issues with new concurrent licensing system

HOMER Grid Version 1.2.4 (August 30, 2018)
    Features and Improvements
    • Optimization for the demand limit is re-run if the demand was at the upper limit
    • Tariff builder issue with creating time-of-use demand rates
    • Issue with engine calculating time-of-use demand rates
    • Generator minimum run-time issue

HOMER Grid Version 1.2.3 (August 24, 2018)
    Features and Improvements
    • Instructions for tax rates in the tariff builder
    • Warning that only one imported PV Production Resource is valid
    • Identification of year for real-time rate data imported in the tariff builder
    • UtilityAPI integration on Electric Load page
    • Scrollable HelioScope Project List
    • PVsyst imported data identifies PVsyst version number
    • Six month shift for OpenEI load profiles modeled in the southern hemisphere
    • Issue with deleting and adding ratcheted rates and tiers in the tariff builder
    • Concurrent licensing issues
    • Issue with resilience model with critical load of 0kWh/day
    • Units for PV Production Resource

HOMER Grid Version 1.2.2 (August 1, 2018)
    Features and Improvements
    • OpenEI Load electric data is now extrapolated based on climate zone for locations world-wide
    • Implemented minor UI improvements
    • Improved product stability
    • Issue with real-time rates
    • Ability to combine tariffs
    • Issues within the Simulation Results' Utility Tab:
      • Breakdown of tariff taxes
      • Consumption Prices table for a custom tariff in Utility Bill Details
    • Dispatch issue where charging the battery was not limited by the rectifying capacity
    • Currency issue when opening saved files
    • Units for Tax Rates and Fixed Rates in the Tariff Builder

HOMER Grid Version 1.2.1 (July 10, 2018)
    Features and Improvements
    • Ability to define time-zone in the Tariff Builder application
    • Warning if tariff time-zone does not match project location time-zone
    • Critical Electric Load is required to calculate and visualize bill
    • Additional sample file added to demonstrate a simple system
    • Visualization for the tariff rate chart, as seen in the Tariff Builder application and the utility tariff page
    • Contracted Demand Rates defined in the Tariff Builder application display correctly in the list of demand rates and in the Heat Map
    • Daylight savings bug causing error during the months when time-change occurs

HOMER Grid Version 1.2.0 Beta (June 19, 2018)
    Features and Improvements
    New features:
    • Advanced Tariff Builder Application
    • HelioScope API connection
    • Ability to import PV production time series
    • Extended, infrequent outages & non-critical loads
    • Wind
    • Performance Improvements
    • Authenticated proxy support & improved concurrent license system
    • Visualizations to verify utility rates and bill
    • Increased flexibility to import measure load data

HOMER Grid Version 1.1.3 (May 15, 2018)
    Features and Improvements
    • Improved Optimization Report chart visualizations
    • Edited sample files
    • Production-based incentives and MACRS credited starting in the first year of operation
    • Optimization Report accommodates user-defined base cases for comparing economics
    • Units of Demand Rate in Time Series Viewer
    • Customizable currency fixes
    • Formatting for negative numbers exported to Excel

HOMER Grid Version 1.1.2 (April 5, 2018)
    Features and Improvements
    • New License Manager Page
    • Improved Optimization Report
    • Improved Wizard Interface
    • Simulation Report's Energy Purchased from Grid and Energy Sold to Grid graphs
    • Battery lifetime bug
    • Variable rates for calculating monthly demand rates
    • Use total demand rate for monthly demand limit optimization

HOMER Grid Version 1.1.1 (March 9, 2018)
    Features and Improvements
    • Wizard allows for customizable tariff rate settings
    • Optimization Report styling
    • Generator schedule, maintenance, and fuel limit
    • Storage component lifetime and annual throughput
    • Excess Electricity metrics

HOMER Grid Version 1.1.0 First Release (March 1, 2018)
    Features and Improvements
    • Initial release
    • Added Combined heat and power module per customer input
    • Genability tariff database integration for USA, Canada, Mexico, and Australia