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Rescooped by Homestar NZ from Green Building Design - Architecture & Engineering
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NEEA introduce heat pump water heaters to the Northwest with training & incentives

PORTLAND, Ore., Oct. 23, 2013 /PRNewswire/ -- NEEA and partners successfully introduce heat pump water heaters to the Northwest. Technology promises to save enough energy to power all the homes in Seattle and Boise each year.

Via Duane Tilden
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Duane Tilden's curator insight, October 31, 2013 8:43 PM

>Water heating accounts for 15 to 20 percent of electric energy use in homes with electric water heating. Compared to traditional electric water heaters, heat pump water heaters can save homeowners up to 50 percent on energy costs while still delivering the same amount of hot water. Heat pump water heater technology works like a refrigerator, but in reverse – using fans and an evaporator to pull warmth from the surrounding air and transfer it to water in the storage tank.

"The work we accomplished in collaboration with our utility, manufacturer and retail partners in 2012 and 2013 sets the stage for new innovations, new features and improved product designs that will help transform the market," said Jill Reynolds, heat pump water heater initiative manager, NEEA. "Part of developing new technologies is testing product quality. Together with our partners we tested heat pump water heaters in the field and launched a regional marketing promotion across the Northwest. We see huge potential regional energy savings from this technology."

Fifty-five percent of Northwest homes have electric water heaters. If all of those homes used heat pump water heaters specifically designed for the Northern climate, the region could save nearly 500 average megawatts (aMW) by 2025, the equivalent to powering all the homes in Seattle and Boise combined each year.<

 

see here for rebates:  http://www.oregon.gov/energy/RESIDENTIAL/docs/2013RETCRates.pdf

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Healthy homes around the world

Healthy homes around the world | Homestar | Scoop.it

Countries and cities around the world are taking action to encourage a more sustainable built environment.

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Is Your Home A Star

Is Your Home A Star | Homestar | Scoop.it

The Draft Auckland Unitary Plan has a proposal for new dwellings to be built to a Homestar 6 standard, if five or more consents are sought at once.

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California Building Code Title 24 Will Revolutionize Efficiency Financing for Buildings

California Building Code Title 24 Will Revolutionize  Efficiency Financing for Buildings | Homestar | Scoop.it
If successful, Title 24 will open the door to increased amounts of energy efficiency financing, expanded sources of capital and lower financing costs.

Via Duane Tilden
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Duane Tilden's curator insight, November 13, 2013 1:02 PM

>California’s Title 24

Title 24 is California’s body of state building codes. These codes have been revised to move the building industry toward comprehensive building solutions with a goal of achieving Zero Net Energy (ZNE) residential and commercial buildings. In a ZNE building, the annual building’s energy consumption is equal to the building’s onsite renewable energy generation. California has set a goal for all new residential construction to be ZNE by 2020 and for all new commercial construction to be ZNE by 2030. Additionally, the repurposing and remodeling of existing buildings that are of a size-threshold defined by Title 24 will also have to comply with Title 24 revised codes.

Financing a “smart” Zero Net Energy building

The challenge of financing any energy efficiency or renewable energy project is in providing assurances to the source of capital that the project will actually generate sufficient cost savings to cover financing costs plus repayment of invested capital. The number one challenge for winning energy efficiency investments is the uncertainty in documenting bill savings results. Too often, the cost savings generated by an investment in energy efficiency is lost in higher electric bills as new loads are added and utilities raise rates.

Information technologies that monitor, control and financially operate a building through links to real time prices of grid-supplied electricity are the foundation for enabling Title 24 project financing. Smart ZNE buildings will operate to optimize the economics between reducing building demand, reducing energy consumption, on-site generation, use of on-site energy storage and purchases of grid electricity.

What will further enable the financing of ZNE buildings is the ability of enabling information technologies to “look forward” in time to proactively shape a building’s operation and grid purchases to financially support the building’s project financing. The technologies that can achieve these results have already been invented. What California is pursuing through its Title 24 code revisions is a massive economies of scale push for these technologies to drive their costs down and increase their ability to be financed.

The sales pie just got bigger…a lot bigger

Beginning in 2014, Title 24 will blow the sales doors open for smart building technologies, energy efficiency technologies, onsite energy storage and renewable energy technologies. Title 24 will create a new competitive landscape for architects, general contractors, sub-contractors and vendors based upon their ability to offer price competitive services and products that comply with Title 24 codes. The construction industry’s sales path for energy efficiency projects will no longer be anchored by utility incentives that support targeted energy efficiency upgrades like re-lamping a building with more efficient lights. The new sales path will be based upon cost-effectively delivering code compliance to achieve financeable building performance. New competitive advantages will be won by contractors and architects that offer building performance assurances to building owners and financing sources.<

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Sustainability built in

Sustainability built in | Homestar | Scoop.it

The design of this homes has earned it seven out of ten stars under the Homestar home performance rating scheme.

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