By Sarah Antolick, Engineer at Pare Corporation and a member of Pare’s Sustainability Committee
Whether you are a climate-conscious homeowner or are simply looking to keep a few extra dollars in your pocket, sustainable homes have become a hot topic in the past few years. In 2010, 40% of U.S energy consumption was from residential and commercial buildings and accounted for nearly 40% of carbon dioxide emissions . As environmentally conscientious citizens and engineering professionals with a stake in the construction industry, we have an imperative to improve our built environment.
Building codes set a standard for the design and construction of our homes while setting a reference point for health, safety and wellness. Updating the building code is a powerful tool for improving new construction, which comprises a significant portion of our housing market. According to a study by Statista published in 2017, residential housing growth between 2015 and 2016 amounted to 880,000 new units . These new housing units are among the most sustainable and energy efficient as we are seeing higher standards and codes on both the national and local levels.
However, new construction cannot compare to our existing housing, as it is estimated that there are 135.58 million total residential units in the United States as of 2016. Therefore, it is in our existing homes that we can make the greatest impact on our environment through energy efficiency improvements.
There are many easy ways to reduce energy usage and save money in our homes without starting from the ground up. Savings vary depending on home size, age, current technology usage, product brand, etc., but collectively these technologies provide significant savings. Items such as LED light bulbs, low-flow shower heads and aerators, and programmable thermostats are simple fixes that can help reduce energy waste.
The impact that can be derived from these simple changes includes:
- LED light bulbs use 25-80% less energy and last 3-25 times longer than traditional incandescent bulbs .
- Phantom energy is energy consumed by appliances that are plugged in but not in use which can account for 15% or more of a household’s total energy consumption. Advanced power strips can eliminate this inefficiency .
- Water heating is the second largest contributor to most households’ energy consumption. Simply fixing a leaking faucet can save $35 annually .
- Low-flow shower heads can save both water and energy consumption for water heating. Low-flow fixtures can translate to 25-60% reduction in water consumption annually .
Additional savings can be achieved through larger investments such as air sealing by using double pane windows, added insulation, upgraded HVAC systems, and energy star appliances.
The cost of these systems and energy savings vary greatly. Locally both Massachusetts and Rhode Island encourage homeowners to invest in these retrofit options through their rebate programs. Mass Save provides services at subsidized cost and provides interest-free loans on long-term investments . Rhode Island has paired up with National Grid to provide both auditing services and rebates for eligible homeowners .
Residents of Rhode Island can take advantage of companies such as RISE Engineering for a full spectrum of services from auditing, design, vending, and installation through the financial incentives process. RISE is one of the oldest providers of energy auditing services with over 35 years of experience working on over 25,000 single-family residences totaling over $800 million in energy improvements. They work with utility companies, municipalities, and program sponsors to offer a comprehensive energy retrofitting experience. https://www.riseengineering.com/
Likewise, in Massachusetts, HomeWorks Energy is one of the companies tackling energy efficiency one home at a time as part of the “Mass Save” program. This program is to provide Massachusetts residents with home energy assessments including installation of free products including low flow shower heads and LED light bulbs, and recommendations for future improvements through HVAC, weatherization, windows, and solar. HomeWorks collaborates with home owners, municipalities, contractors, and other community partners to help take advantage of Mass Save incentives. https://www.homeworksenergy.com/
A sustainable future starts in our homes, and the first step in unlocking these opportunities is through home energy assessments. Learn how you can start the process at https://energy.gov/energysaver/do-it-yourself-home-energy-audits
Additionally, The U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) maintains a comprehensive national database of Energy Incentive Program resources for organizations, businesses, and residents which can be accessed at https://energy.gov/eere/femp/energy-incentive-programs.
3- https://energy.gov/energysaver/how-energy-efficient-light-bulbs-compare-traditional-incandescents#4- https://energy.gov/energysaver/reduce-hot-water-use-energy-savings
6- https://www.masssave.com/en/saving/energy-assessments/ and https://www.masssave.com/en/saving/energy-assessments/homeowners?gclid=CjwKCAjw1ufKBRBYEiwAPI_r4XLc7hejP5qFEKr-CNvIojqk_8T0rqkUiS2e0feHPIyZVWAFsQUj-xoC9OIQAvD_BwE
7- https://www.nationalgridus.com/RI-Home/Energy-Saving-Programs/ and https://www.nationalgridus.com/RI-Home/Energy-Saving-Programs/Home-Checkups-Weatherization