Check out tools for resource planning, program development

Everyone loves to get a new tool that will make their job easier, whether it is a power sander for refinishing furniture or a calculator to help you choose the most cost-effective renewable resource or efficiency measure. Here are some “gadgets” that might be just what you need.

Choose your clean power
The Green Power Partnership, a program of the Environmental Protection Agency, has released a new Green Power Supply Options Screening Tool to help you sort through the different supply options. There are many ways to purchase green power—such as green tariffs, competitive green power products and off-site power purchase agreements—and determining which purchasing method works for you can be difficult.

Users answer a few simple questions about their organizations, including their locations and annual energy consumption. The Excel-based tool will describe which supply options might be most feasible, according to the relevant federal, state and utility policies. Background documents accompany the tool to explain how the results are defined and the logic used to produce the result for each supply option.

Calculate equipment efficiency
The DOE Office of Energy Efficiency and Renewable Energy (EERE) created the Better Buildings Residential Program Solution Center as a repository for the lessons learned from other EERE programs dedicated to improving building efficiency. Utility program administrators will find resources here that help them plan, operate and evaluate residential energy efficiency programs.

Artwork by DOE Office of Energy Efficiency and Renewable Energy

Artwork by DOE Office of Energy Efficiency and Renewable Energy

The Solution Center has recently been branching out with more information about the technical aspects of home performance programs. A new section focused on technology solutions explores innovative technologies, offers installation guidance and estimates potential energy savings.

New pages highlight HVAC systems and heat pump water heaters, two applications that account for about 67 percent of home energy consumption. Use the reports, best practices and other resources to support program offerings and help you to reach your energy-efficiency program targets.

Identify energy savings potential
Researchers at the National Renewable Energy Laboratory (NREL) have developed ResStock, a versatile tool that takes a new approach to large-scale residential energy analysis.

The ResStock software achieves unprecedented granularity and accuracy in modeling the diversity of the single-family housing stock by combining:

  • Large public and private data sources
  • Statistical sampling
  • Detailed sub-hourly building simulations
  • High-performance computing

The research team has run more than 20 million simulations using a statistical model of housing stock characteristics. The results uncovered $49 billion in potential annual utility bill savings through cost-effective energy efficiency improvements.

Using ResStock analysis, utilities can target energy-efficiency improvements to specific customer segments to improve cost-effectiveness. Resource planners can determine which measures and distributed energy resources are best for relieving grid congestion and what housing stock segments can provide the greatest load flexibility.

Utility program managers, municipalities and state energy agencies can use ResStock to identify the most cost-effective—and energy-saving—home improvements. The tool is also valuable for helping cities and states figure out how buildings contribute to energy or emissions targets. NREL is pursuing partnerships with industry to adapt ResStock for specific utility, manufacturer, state and local applications.

NREL will be offering the ResStock software at no cost, leveraging DOE’s open-source building energy modeling ecosystem of OpenStudio® and EnergyPlus. These cloud-based collections of software tools allow users to model energy use for heating, cooling, ventilation, lighting and plug-and- process loads without a supercomputer.

To learn how ResStock can help your utility contact Eric Wilson at NREL.

Source: US Department of Energy Office of Energy Efficiency and Renewable Energy, 1/30/18

Report, tools seek to boost building efficiency

Utilities have a vested interest in working with homeowners and businesses to accurately estimate and control energy costs. It is not only good for load management goals, it is also good for the local economy. A new report from Rocky Mountain Institute  You are leaving WAPA.gov. (RMI) and tools being developed by the National Renewable Energy Laboratory (NREL) can help utilities and cities move toward a more efficient building stock.

Changing real estate conversation
According to the online real estate platform Redfin, You are leaving WAPA.gov. energy bills can add as much as 40 percent to annual housing costs in some parts of the country. An MPG for Homes: Driving Visible Value for Home Energy Performance in Real Estate, the RMI report, makes the argument for incorporating energy use data into the total cost of homeownership calculations.

The authors emphasize, however, that making home energy use data more accessible is part of a greater vision. True market transformation will require a change in both homebuyer behavior and policies and approaches across several interconnected industries. The real estate, finance, home improvement and—yes—utility industry would all play a part and could all benefit in the long run from improving home performance metrics and making the data more transparent and accessible to homeowners.

RMI notes that the “green real estate” movement is already starting to catch on with online real estate portals featuring home energy scores on property listings. Partnerships between the Zillow Group You are leaving WAPA.gov. and UtilityScore, You are leaving WAPA.gov. Estately You are leaving WAPA.gov. and Clearly Energy and Redfin and Tendril You are leaving WAPA.gov. are aiming to make home energy scores a bigger consideration in buying decisions.

Recent home purchases drove 26 percent of home renovations in 2015, and preparation for resale led to 13 percent of renovations, according to Houzz and Home: Overview of Renovation. You are leaving WAPA.gov. Moreover, 67 percent of study respondents cited improving energy efficiency as an important reason for making a renovation. Clearly, renovation projects offer utilities an opportunity to promote energy-efficiency measures and programs to a receptive audience. Establishing relationships with housing professionals in the community could pay off for utility program managers in a big way.

Tools analyze home, infrastructure projects
Once you connect with customers who are interested in making energy-efficiency improvements, the next challenge is determining what upgrades will save them the most money and energy. The ResStock analysis tool from NREL provides detailed information on the technical and economic potential of residential energy-efficiency improvements and packages for 48 U.S. states.

By combining large data sources and statistical sampling with detailed building simulations, the program achieves unprecedented accuracy in modeling the diversity of the single-family housing stock. The ResStock software leverages DOE’s open-source building energy modeling platforms OpenStudio® You are leaving WAPA.gov.  and EnergyPlus You are leaving WAPA.gov. so you won’t need a supercomputer to run the program. Contact NREL to find out more.

On a larger scale, NREL’s Energy Systems Integration Facility is working on a demonstration project that is developing a buildings and district energy modeling tool, URBANopt. The demonstration integrates URBANopt with grid modeling software, OpenDSS, to analyze the projected dynamic energy consumption of a planned 382-acre mixed-use development. The Denver, Colorado, site includes corporate office space, retail space, multifamily dwellings, a hotel and parking and street lighting. This project will result in several tools that others can use to replicate this project across the country, including an enhanced version of URBANopt and a developer’s handbook.