AkWarm Updates

CCHRC is doing a number of updates to AkWarm, the software used by energy raters to determine the energy efficiency of Alaska homes, based on its heating and air handling systems, building envelope and foundation.

Upgrades include:

- incorporate renewable energy calculations into software so homeowners can get credit for renewables 
- get AkWarm into compliance with federal standards so Alaska homeowners are eligible for federal energy efficiency tax credits. 
- assess impacts of oversized heating systems and how it should be factored into energy score
- review and validate heating system calculations
- update heat loss calculations, which account for regional soil temperatures, wind, air infiltration
- look at domestic hot water use for regional variations

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Projects

HERS Software Development CCHRC is researching and developing guidelines for AHFC staff to use when reviewing software for compliance with the Home Energy Rating System (HERS) standard.
Rebate & Weatherization Program Evaluation Audit Process This project evaluated AHFC's weatherization and rebate programs to determine outcomes and recommend improvements.
PM 2.5 Reduction Policy CCHRC developed a model to estimate PM2.5 emissions from residential heating sources in Fairbanks and evaluated a variety of policy options aimed at reducing emissions, finding that these efforts could cut emissions in half.
4-5 Star Plus Energy Rated Homes Survey & Analysis Ivan Moore Research (IMR) of Anchorage conducted a customer survey of Four Plus and Five-Star Plus homes to determine customer satisfaction and understanding of building components.
6-Star Green Program Development CCHRC outlined a program to add 6th Star to the home rating system, which included an AkWarm energy analysis and a green building analysis a national standard for energy efficiency.