Posts tagged ‘Net Zero Energy’

November 29, 2017, 9:00 am

Project Profile: Northstone Development

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Energy efficient technologies are understood to be better for the environment in the long term, but they can also be immediately practical when building affordable and comfortable housing.

Last year, Habitat for Humanity of Catawba Valley (Habitat Catawba) in Hickory, North Carolina demonstrated this as part of its development of Northstone – an 18-unit neighborhood for Habitat Catawba families and market-rate residential buyers. While all the homes meet energy-efficiency standards, the first two homes built received the first Zero Energy Ready Home certifications in the state of North Carolina. This certification was developed by the U.S. Department of Energy and ensures each home given this status offers a cost-effective, high performance package of energy savings, comfort, health and durability unparalleled in today’s marketplace.

To achieve this certification, Habitat Catawba selected highly efficient technologies, including Zoned Comfort Solutions™ from Mitsubishi Electric Cooling & Heating (Mitsubishi Electric). This decision allowed the homeowners to qualify for rebates through local engineering services firm, Advanced Energy, Raleigh, North Carolina, and utility company, Duke Energy, Charlotte, North Carolina.

“We made a commitment to the entire neighborhood to offer affordable housing all the way through – from the energy efficiency of the homes to the long-term sustainability of the technology,” noted Mitzi Gellman, executive director, Habitat Catawba.

Since the homes have been occupied, residents feel both comfortable and happy with their additional energy savings. Gellman said selecting the Mitsubishi Electric systems for Northstone helped Habitat Catawba achieve its ultimate goal – providing families comfort at an affordable price. “We’re working with families where saving $40 to $60 a month improves their quality of life. The units help them achieve a better lifestyle.”

To learn more about this project, read the case study here.

July 15, 2014, 4:45 pm

Boston magazine’s 2014 Design Home Goes Green

July 15_Boston Magazine 2014 Design Home Image
Boston magazine teams up with countless manufacturers each year to create a home that showcases the latest products and cutting-edge technologies available in home design. This year, we’re proud to announce that we’re a part of the publication’s 10th Design Home, and its first ever single-family net zero energy home.

Each home has a distinctive style and is built in a new location, stretching from north of Boston to the South Shore and even to MetroWest. This year’s home, located in Salisbury, Massachusetts, will provide homeowners with an inside look at smart design and first-hand experience with state-of-the-art products that help achieve its net zero energy goals.

The 2,400-square-foot home will include our energy-efficient ductless zoning system, complete with two outdoor units and five wall-mounted indoor units. The indoor units will be placed in each of the home’s three bedrooms, as well as the dining room and attic for optimal home comfort.

The project will be completed later this month, and will begin four weeks of public tours in mid-September. One hundred percent of the proceeds from ticket sales will go to the Boston Children’s Hospital.

We’re thrilled to be involved in such an important project that demonstrates that a green, efficient home can be both comfortable and beautiful. Click here for more information on the 2014 Design Home, and here to read a detailed article in Wicked Local Amesbury.

May 1, 2014, 11:20 am

Project Profile: King County Housing Authority



The King County Housing Authority (KCHA) has provided affordable housing services in the Seattle area since 1939. KCHA decided to consolidate its multiple offices and departments under one roof in 2011.

KCHA purchased a 36,000-square-foot, 1980s retail/warehouse space with the goal to renovate it to meet operational needs. They wanted the building to be extremely energy efficient and the work needed to be completed within the confines of a tight budget. Ecotope, Inc., a local engineering firm, specified our Variable Refrigerant Flow (VRF) zoning system for the job.

With the help of our VRF zoning system and advanced controls capabilities, KCHA achieved an annual Energy Use Index (EUI) of 26 KBtu/sf/yr in its first year – 70 percent less than the national annual EUI average for office buildings. The building also received an ENERGY STAR® rating of 97, and won second place in ASHRAE’s 2014 Technology Award for Systems Innovation.

“Working with an extremely tight budget, it was a colossal challenge to forge a high-performance building out of an old, worn out retail space,” said Greg Belding, principal at LEED®-accredited Rice Fergus Miller Architects, who designed the space. “We could not have achieved an energy-saving design without the ingenious VRF [zoning] engineering from Mitsubishi Electric. A conventional VAV forced air system would never have worked.”

To learn more about King County Housing Authority’s renovation, click here to read the complete case study.

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April 1, 2014, 2:34 pm

Heat Pumps are on the Rise



According to a recent article in The Journal of Light Construction, ductless heat pumps account for 50 percent of the world’s cooling and heating market but just a mere 2 percent of the U.S. market. The spotlight on heat pumps at the Building Energy 14 (BE14) conference on March 4 in Boston, however, proves that heat pumps are rapidly gaining ground in New England.

Several session presenters shared their success stories with heat pumps and the numerous benefits the installations have provided. Fortunat Mueller, co-founder of ReVision Energy in Portland, Maine, discussed how pairing a heat pump with photovoltaic technology has become ReVision’s standard design when it comes to creating a net zero energy home.

One of our valued customers, developer and builder Carter Scott of Transformations, Inc., shared his experience with Mitsubishi Electric heat pumps and how they’ve become a staple in his projects aimed at achieving Net Zero Energy. Scott used the development of a Net Zero Energy housing community in Devens, Mass., as an example, where the installation of our heat pumps allows each home to generate enough power to run a Nissan Leaf electric car for 30,000 miles!

To learn more about the heat pump stories from the BE14 conference, click here for the article in The Journal of Light Construction. Click here for the Devens, Mass. case study.

June 24, 2013, 1:42 pm

Project Profile: LeyVa Middle School, San Jose, Calif.


First Net Zero Energy Public School Building in California


The Evergreen School District in San Jose chose Mitsubishi Electric VRF zoning systems to get to net zero and save $9,000 annually in energy costs.

When the George V. LeyVa Middle School needed a new administration building, architect John Diffenderfer, principal at Aedis Architecture & Planning, received a call from the superintendent of the Evergreen School District, requesting a team of local architects and engineers who specialize in sustainable building practices. For LeyVa, the goal was to design an advanced energy-plus building that would not only provide comfort, but also cut down on costs for the school district.

Diffenderfer encouraged the administration to select efficient VRF zoning systems to cool and heat the new building, reminding school officials that the severe economic trouble of the past few years had produced a revenue crisis for California schools. Noting that utility expenses are one of the last line items school administrations can directly control, he said, “Creative thinking is desperately required, and we should make this installation a de facto standard for all Evergreen schools.”

The administration listened and gave the green light to install our systems. These Mitsubishi Electric VRF zoning systems help the building operate at 41 percent higher efficiency than required by California’s Energy Code (Title 24), while generating up to 8 percent surplus energy.

To see the full case study, click here.

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