Jim Gunshinan's Blog (81)

New Zero-Energy Homes Almost to Cost Parity, While Codes & Incentives Help Cross the Finish Line—By RMI's Alisa Petersen

If you had a choice between building new homes that meet basic standards and building comfortable, healthy homes that dramatically cut energy bills, which would you prefer? How about if the low-energy homes cost the same (or nearly the same) as a standard home to build? If the cost is relatively equal, shouldn’t every new home be built this…

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Added by Jim Gunshinan on November 27, 2018 at 3:30pm — 1 Comment

Top US Cities Considered the Most Energy Efficient, by Sandra Wood

Many people recognize the need for increased efforts to reduce energy consumption and make communities cleaner. As cities strive to reduce pollution and conserve energy, the American Council for an Energy-Efficient Economy has recognized the ones making the largest strides in this area.

Based on their scores on the…

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Added by Jim Gunshinan on November 19, 2018 at 1:30pm — No Comments

Comments by HPC to Support the New Jersey 2019 Energy Master Plan

As leaders in the residential energy efficiency industry, the Home Performance Coalition (HPC) responded to the September 2018 request by the New Jersey Board of Public Utilities (NJ BPU) to provide feedback that supports the state's development of its 2019 Energy Master Plan.

Topics include:

  • weatherization
  • key non-energy benefits
  • demand response…
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Added by Jim Gunshinan on October 26, 2018 at 2:37pm — No Comments

Zero-Energy Homes Are Ready for Mainstream Markets

By Alisa Petersen and Michael Gartman

Zero-energy (ZE) homes—efficient homes that produce or procure as much renewable energy as they consume over the course of a year—are often marketed as luxury homes, only available to the select few that are willing to pay a significant premium to do the right thing for the environment. In keeping with this luxury perception, research shows these homes are often more comfortable and healthier than conventional homes for a variety of…

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Added by Jim Gunshinan on October 16, 2018 at 2:41pm — No Comments

Redefining Home Performance in the 21st Century, How the Smart Home Could Revolutionize the Industry and Transform the Home-to-Grid Connection

Today, the Home Performance Coalition (HPC) calls on policymakers, industry leaders, energy program managers and contractors to redefine home energy performance to include smart technology, smart homes.  In “Redefining Home Performance in the 21stCentury, How the Smart Home Could Revolutionize the Industry and Transform the Home-to-Grid Connection,” HPC asserts that America’s…

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Added by Jim Gunshinan on October 4, 2018 at 7:06pm — No Comments

More "Buzz" from ACEEE Summer Study—Grow Homes

Joe Clark and Martha Wudka of Evergreen Economics did a study in which "getting into the weeds (or weed)" was the whole point. Since marijuana is becoming legal in state after state, they wanted to zero in on the energy use in "grow homes". These are homes where residents grow marijuana for personal use. The biggest energy use gain? Lighting to grow the plants indoors.

Here is the abstract from the paper that was presented at the 2018 ACEEE Summer Study of Energy in Buildings,…

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Added by Jim Gunshinan on September 24, 2018 at 5:30pm — No Comments

More "Buzz" from ACEEE Summer Study—Builder-Installed Electric Loads

You probably never considered the power consumption of those Ground-Fault Circuit Interrupter outlets (fondly known as GFCIs) in bathrooms, kitchens, and other residential wet spots. But Leo Rainer and his colleagues did and they measured them.  He also measured hard-wired smoke alarms, Arc-Fault Circuit…

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Added by Jim Gunshinan on September 6, 2018 at 8:30pm — 1 Comment

Two Friends of Summer Study



The following profile first appeared in the
Grapevine, a daily newsletter produced by Home Energy Magazine staff at the biannual ACEEE Summer Study in Buildings, heald at the beautiful…

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Added by Jim Gunshinan on August 21, 2018 at 5:00pm — No Comments

Some "Buzz" from ACEEE Summer Study! PV Marries Heat Pump, by Danny Parker, Florida Solar Energy Center



Reducing energy use for heating hot water remains a major challenge around the world. This paper describes a novel solar photovoltaic assisted heat pump water heater (PV-HPWH) which achieved an 83% reduction (COP 5.4) in water heating energy compared with electric resistance. This technology demonstrates…

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Added by Jim Gunshinan on August 6, 2018 at 12:30pm — No Comments

Our First Year with Solar Panels, by Chris Stratton

 A local solar company putting supports for PV panels on our roof. No that's not a tiny man on the ladder.

A local solar company…

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Added by Jim Gunshinan on July 16, 2018 at 4:00pm — 8 Comments

Home Energy Pros Forum Thriving

Home Energy Pros Forum has reached a milestone. We welcomed our 6,000th member to the premier online community for home performance pros! More than 430 new members have joined since the Home Performance Coalition (HPC) took over stewardship of the site on October 1, 2017. Home Energy…

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Added by Jim Gunshinan on June 13, 2018 at 6:30pm — No Comments

Highlights from the 2018 HPC National Home Performance Conference in Philadelphia

This year’s HPC National Home Performance Conference was a rich ground for learning, meeting old friends and new, and gathering good blog material!

The sessions I attended on Health and Housing were fantastic. It’s good to see the home performance community becoming more and more identified…

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Added by Jim Gunshinan on May 1, 2018 at 4:18pm — 1 Comment

Allison Bailes—Common Problems with Cold Weather Ventilation

by Allison Bailes

When I woke up Saturday morning, the temperature outdoors was -40 degrees. The wind chill was -100 degrees! It was just unbelievably, impossibly, inhumanly cold…

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Added by Jim Gunshinan on January 22, 2018 at 1:30pm — 2 Comments

Using God Talk—or Not—to Help the Planet?

I am always impressed with the work of Susan Shelton and the Shelton Group. So an email message with the subject line from her office, “Age, religion & environmental messaging: what works?” immediately caught my attention.

In an Eco Pulse special report, “United We Understand,” the Shelton Group digs into their research on how best to reach an audience about environmental concerns. An associate of Shelton, Lea Ann Head,…

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Added by Jim Gunshinan on January 12, 2018 at 3:00pm — No Comments

By Kelly Vaughn: Rebuilding After a Hurricane, and the Next, and the Next...

Rebuilding After a Hurricane, and the Next, and the Next...

 

This year’s hurricane season is the most expensive on record, with $202.6 billion in damages according to Bloomberg. These storms across the Atlantic had devastating impacts on people’s lives and homes, on communities, and on infrastructure in the hardest-hit areas.

In fact, the damage…

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Added by Jim Gunshinan on January 11, 2018 at 11:30am — No Comments

Cool—and Warm—Clothing

“Why do you need to cool and heat the whole building? Why don’t you cool and heat individual people?” asked Yi Cui, professor of materials science and engineering at Stanford University.

Putting on or taking off articles of clothing works to keep a body cool or warm within a certain temperature range; outside that range we rely on heating systems and A/C to keep us comfortable. But what if one garment did both the heating and the cooling?

Cui’s colleague and postdoctoral fellow…

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Added by Jim Gunshinan on November 30, 2017 at 4:00pm — No Comments

New Home Builders Tackle Zero-Energy Home Building in Connecticut

Connecticut’s 2016 Zero Energy Challenge reinforces the growing interest in the zero-energy home building movement. In addition to increased participation among experienced homebuilders, the 2016 challenge had an influx of inexperienced zero-energy home builders trying their hand at zero-energy homebuilding for the first time, with two winning.

How did they do it?

Research, research, and more research

While…

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Added by Jim Gunshinan on October 26, 2017 at 2:30pm — 1 Comment

A Healthy Home and a Healthy Bottom Line

There has been a lot of interest of late in the weatherization and broader home performance community in putting a value on the health benefits of weatherization. We’ve come a long way in the last several years and have reached, I think, some strong consensus that the health benefits of weatherization and home performance retrofits are real and valuable. This means that making healthy housing a part of your business plan makes good sense.

E4TheFuture is a nonprofit organization…

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Added by Jim Gunshinan on December 5, 2016 at 12:00pm — 4 Comments

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Franco Oyuela replied to Tom Smith's discussion Are Energy Efficient Windows worth the investment?
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