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Net-Zero-Energy Home Unveiled in Las Vegas - CleanTechnica

Net-Zero-Energy Home Unveiled in Las Vegas - CleanTechnica | Sustainable Energy | Scoop.it

A number of energy-efficient homes and communities are currently in the process of being tested, but a Los Angeles-based company is going one small step farther.

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Energy efficiency improvements can increase the value of your home by 38%, Government report claims

Energy efficiency improvements can increase the value of your home by 38%, Government report claims | Sustainable Energy | Scoop.it
Insulating cavity walls, upgrading double glazing, and putting solar panels on the roof could increase the value of some properties by 14 per cent, while others could rise by as much as 38 per cent, it claims.

Via Richard W J Brown, Irene Immink
Richard W J Brown's curator insight, June 18, 4:26 AM

Improve the energy rating and improve the property value is the claim...oh and you also help to improve the planet in the process!

 

Lower energy bills and improved property values are the financial wins resulting from improving the energy rating in the home, so why is there such a small conversion rate from inquiry to completed project with the Green Deal?

 

Well the answer is probably that in actual fact the energy bill will not in the short-term reduce and also that as a result of the Green Deal loan being attached to the property's energy supply could also put off would-be purchasers and renters.

 

Looking at the improved house values another possible explanation also springs to mind - many of the higher rated A-B homes are new homes (build in the last ten years).  First of all new homes tend to carry something of a price premium in any event and secondly, there are some other factors that could contribute to a higher value; such as being covered by a warranty like the NHBC and from lower initial repair, improvement and maintenance requirements.  Older Victorian stock are the worst offenders and will also probably require a lot more in terms of improvement expense to put them right, leading to lower valuations for those that have not been improved in particular.

 

That all said, the incentive is clear - increase the energy rating and increase the home value.  The only question then is whether of not to use the Green Deal to do it.  As a landlord, I understand that tenants will be focussed on the running costs of their property and so will be interested in it's energy rating.  But they will probably not be too excited once they realise that whilst their rental achieves say a C rating say that in fact they are still paying the same as with say a G rating due to a Green Deal loan being attached to it.

 

My conclusion therefore is to introduce energy saving measures (with roof and cavity wall insulation being the biggest and easiest wins) but to finance this in an alternative way to the Green Deal loan.  Cash, increase in the mortgage of another type of loan not attached to the energy bill would be my recommendation.  After all, it is clear to see that everyone is a winner when we reduce the energy consumption of our properties, especially mother Earth.

 

Green improvements = yes...Green Deal Loan = no from me therefore

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The Battle For Your Energy Bill

The Battle For Your Energy Bill | Sustainable Energy | Scoop.it
U.S. Energy Information Administration One of the most commonly cited barriers to investments in energy efficiency and renewable energy in the built environment is that the payback is too long.

Via Duane Tilden
Duane Tilden's curator insight, June 15, 4:34 PM

>On‐bill financing allows customers to pay back the capital costs of an energy efficiency retrofit as part of their monthly electric bill.

 

Utilities have offered customers on-bill financing programs for various energy efficiency retrofits for years. The utilities use their capital to cover the upfront costs of projects. Customers then pay back the cost of these projects over time through a charge on their utility bills.

 

[...]

Like on-bill financing, PACE programs recover the capital investment in energy efficiency as part of an existing payment stream. Rather than the utility bill, PACE programs rely on the property tax bills as the principal collection mechanism. One of the advantages of PACE financing is that it is not treated as a loan. If the property is sold or transferred, the tax payment obligation may be transferred with the property to the new owner.<

Wiser Capital's curator insight, June 17, 11:23 PM

On bill financing and property assesed financing are great ways to bridge the gap to more renwable energy and energy efficiency.

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The average share of electricity from renewables

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Rescooped by Hans De Keulenaer from Développement durable et efficacité énergétique
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Integrating Building into the Smart Grid

Integrating Building into the Smart Grid | Sustainable Energy | Scoop.it
It will take time to get from point A, today’s grid and building technologies and power markets to point B, a Smart Grid with intelligent buildings and transactive markets, but it can be done.

Via Joan Tarruell, Stephane Bilodeau
Stephane Bilodeau's curator insight, June 2, 6:13 PM

"A very important conference occurred in Portland, Oregon last week – the Gridwise Architecture Council hosted the first international Transactive Energy Conference.  The topic of transactive energy is so new that there’s no formal definition yet, but as the author of the Smart Grid Dictionary, here’s my suggestion.  Transactive energy is a software-defined, low-voltage distribution grid that enables market participation by distributed energy resources (DER) bidding generation of negawatts or kilowatts.  Transactive energy describes the convergence of technologies, policies, and financial drivers in an active prosumer market – where prosumers are buildings, EVs, microgrids, or other assets."

Duane Tilden's curator insight, June 8, 6:30 PM

>Transactive energy will play a critical defining role in grid modernization and shaping the Smart Grid.  Buildings, as noted in last week’s article consume 40% of the nation’s energy.  And while building owners can justify purchase decisions on energy savings as well as sustainability values, there’s another crucial factor for building owners to invest in technologies that reduce energy use and deliver self-generation.  That reason is to address the increasing vulnerability of the electrical grid to momentary and sustained power outages to both natural and human causes.

 

Buildings and their occupants are impacted by grid-related power outages.  The negative impacts range from reduced work productivity and decreased occupant safety and health to reductions in lifestyle standards.  Just like real estate values are higher for green buildings with LEED recognition, in the future, buildings that are grid-hardened may command premium prices because they preserve delivery of services regardless of grid status.  It is a compelling new variable in value propositions for tenants and occupants.<

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Siemens to Europe: You're about to waste 45 billion euros!

Siemens to Europe: You're about to waste 45 billion euros! | Sustainable Energy | Scoop.it

Working in conjunction with the Technical University of Munich, industrial and electric power giant Siemens has determined that Europe is incorrectly siting its renewable power projects -- and wasting an estimated 45 billion euros in the process. Siemens claims the projects should be shifted to locations with higher yields, calling the choice of site "crucial to the efficiency and economy."

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The Resurgence of Liquid Air for Energy Storage

The Resurgence of Liquid Air for Energy Storage | Sustainable Energy | Scoop.it

Some engineers are dusting off an old idea for storing energy—using electricity to liquefy air by cooling it down to nearly 200 °C below zero. When power is needed, the liquefied air is allowed to warm up and expand to drive a steam turbine and generator.

The concept is being evaluated by a handful of companies that produce liquefied nitrogen as a way to store energy from intermittent renewable energy sources. Liquefied air might also be used to drive pistons in the engines of low-emission vehicles.

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Rescooped by Hans De Keulenaer from @The Convergence of ICT & Distributed Renewable Energy
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Adding an electric car cut the payback point of our solar panel investment in half

Adding an electric car cut the payback point of our solar panel investment in half | Sustainable Energy | Scoop.it

When we discussed our home solar panel project in mid-2011 with friends, one of the first questions everyone asked was, “What’s the payback period before you break-even?” The second question was unsurprisingly, “How much is it costing you?” but the focus always ended up on the payback.

 

After all, if you’re going to invest in green technology, you’re hoping that at some point in the near future, you get ahead of the game. It turns out that something we didn’t plan for — our Chevrolet Volt — is actually helping us boost the ROI and cut our payback time in half.

 

Click headline to read more--


Via Chuck Sherwood, Senior Associate, TeleDimensions, Inc
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GE Adds Energy Storage to Its Brilliant Wind Energy Turbine

GE Adds Energy Storage to Its Brilliant Wind Energy Turbine | Sustainable Energy | Scoop.it
After premiering its 2.5-megawatt, 120-meter rotor Brilliant wind turbine in February, GE is now announcing the commercial installation of the first three models that will integrate energy storage capability.
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Microgrids: Coming or no?

I recently asked three respected smart grid experts for their views on a potential microgrid boom, and they gave me three different slants.

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Rescooped by Hans De Keulenaer from Energy Affordability
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Rooftop solar reduces the risk of price hikes ... for everyone

How much would you pay to avoid another $250 a year hike in your electricity bill? Does $15 a year sound like too much to reduce that risk?We’ve heard a lot lately about rising electricity prices.

Via UnitingCareAustralia
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Germany on the Verge of a Subsidy for Energy Storage

Germany on the Verge of a Subsidy for Energy Storage | Sustainable Energy | Scoop.it

The energy storage system is meant to be used in tandem with distributed solar installations with storage systems developed in Germany; the funds come with a maximum size requirement of 30 kilowatts. The batteries must have a warranty of at least seven years to gain the subsidy. Another requirement is that the PV installation sends 60 percent of its capacity to the grid over the lifetime of the plant. The battery subsidies will apply retroactively when connected to solar systems installed in 2013, according to reports in PV Magazine.


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The “greenest” building in the world... for now.

The “greenest” building in the world... for now. | Sustainable Energy | Scoop.it

Seattle’s Bullitt Center, opened on Earth Day, is being hailed the world’s “greenest” commercial building. Not only does it have a rooftop array of photovoltaic panels that will produce an estimated 230,000 kilowatt-hours per year and composting toilets, it also has strict energy-usage limits for its tenants - and no onsite parking.

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Energy co-ops are cutting household bills alongside carbon emissions

Energy co-ops are cutting household bills alongside carbon emissions | Sustainable Energy | Scoop.it

Ruth Rosselson is an environmental pioneer. The freelance writer and community trainer is one of the first homeowners to sign up with the Manchester-based Carbon Co-op for a programme of energy-efficiency improvements that will transform her cold and draughty house into a warm and toasty low-energy home.

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Rescooped by Hans De Keulenaer from Renewable Energy News and Related Topics
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Repowering Gives New Life to Old Wind Sites

Repowering Gives New Life to Old Wind Sites | Sustainable Energy | Scoop.it
By 2020, swapping aging wind turbines with more powerful modern units will have raised annual electricity generation at refurbished sites from 1524 GWh to 8221 GWh.

Via Aspiration Energy
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Renewable Energy Roadmap and the DOE

Renewable Energy Roadmap and the DOE | Sustainable Energy | Scoop.it

Traveling through the complex system of federal and state regulations to secure project approvals is one of the biggest challenges facing geothermal power developers – but not if they’ve got a map outlining every twist and turn.

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Japanese Solar Energy Industry Soaring

Japanese Solar Energy Industry Soaring | Sustainable Energy | Scoop.it

In the wake of the tragic Fukushima Daiichi nuclear disaster in March of 2011 there was renewed public and political support for weaning the country off nuclear power altogether. Currently 27% of Japan’s electricity demand is met by nuclear power, but according to a new report by researchers at the University of Texas, Tokyo could use solar photovoltaic (PV) generation as a “baseload” power.

According to the report, “Potential for rooftop photovoltaics in Tokyo to replace nuclear capacity”, 300 square kilometres of suitable rooftop space in Tokyo could support 43.1 GW of PV to offset the demand currently filled by nuclear, alongside an existing 7.28 GW of pumped hydro storage available.

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Rescooped by Hans De Keulenaer from green infographics
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The Future Global Supply of Rare Earth Elements

The Future Global Supply of Rare Earth Elements | Sustainable Energy | Scoop.it

Up until the mid-1980s, the United States was the lead global producer of rare earth elements — materials that are used to make the technology that powers everything from laptops to hybrid cars — and have come to define our high-tech lives. Now, America is 100 percent dependent on imports of these elements and China is the primary world supplier. How does China's domination impact the future global supply of rare earth elements?


Via Lauren Moss
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Ideology and Energy Efficiency Decisions

Ideology and Energy Efficiency Decisions | Sustainable Energy | Scoop.it
Ashutosh Jogelekar has penned an interesting article in Scientific American discussing how one's political position may affect energy efficiency purchases (the post is repeated by Rod Janssen in Energy in Demand).
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An Important, and Sometimes Overlooked, Energy Efficiency Tool

An Important, and Sometimes Overlooked, Energy Efficiency Tool | Sustainable Energy | Scoop.it

To help the citizens of the world make efficient choices about energy, it’s important to get the prices right. The IMF report concludes on an optimistic note with case studies of several countries that have reformed their subsidies. But, the recent riots in Indonesiaover proposals to remove fuel subsidies highlight just how controversial this task is. In the battle against dangerous climate change, though, we need to pursue all possible tools.

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Battery Could Provide a Cheap Way to Store Solar Power

Battery Could Provide a Cheap Way to Store Solar Power | Sustainable Energy | Scoop.it

There’s a promising new entry in the race to build cheap batteries for storing energy from solar panels and wind turbines. Stanford researchers led by Yi Cui, a professor of materials science and engineering, have demonstrated a partially liquid battery made of inexpensive lithium and sulfur. Cui says the battery will be easy to make and will last for thousands of charging cycles.

Cui believes that the material and manufacturing costs of the battery might be low enough to meet the Department of Energy’s goal of $100 per kilowatt-hour of storage capacity, which the DOE estimates will make the technology economically attractive to utilities. Existing batteries can cost hundreds of dollars per kilowatt-hour of capacity, although several companies are working to commercialize cheaper ones (see “Ambri’s Better Battery” and “Battery to Take On Diesel and Natural Gas”).

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Rescooped by Hans De Keulenaer from Digital Sustainability
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Energy harvester that creates power from ambient vibrations finally comes to market

Energy harvester that creates power from ambient vibrations finally comes to market | Sustainable Energy | Scoop.it
We can stuff as many powerful processors and as much memory as we want into our phones and tablets, but it won't matter unless the devices can draw enough energy to make use of it all.

Via Digital Sustainability
Digital Sustainability's curator insight, May 7, 8:17 AM

As you all should know by now, batteries are one of the biggest bottlenecks preventing the advancement of our mobile tech. We can stuff as many powerful processors and as much memory as we want into our phones and tablets, but it won’t matter unless the devices can draw enough energy to make use of it all. Even if the mobile industry can produce a battery that can store significantly more energy than the average lithium-ion, it would still be susceptible to draining. However, what if our devices were powered by an energy harvester that could create energy out of thin air? MicroGen Systems is bringing that kind of device to market.

MicroGen’s energy harvester, dubbed Bolt, provides power like a battery — but uses a very different means to get there. Housing a piezoelectric microelectromechanical system (MEMS) inside the casing pictured above, the unit creates energy from vibrations in the surrounding environment. Ambient vibrations cause a flap on the device (pictured below) to move back and forth, which in turn creates a current that dumps energy in to either a capacitor or a thin rechargeable battery next to the flap.

Rescooped by Hans De Keulenaer from Développement durable et efficacité énergétique
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U.S. Energy Independence is a Delusion - Green Conduct

U.S. Energy Independence is a Delusion - Green Conduct | Sustainable Energy | Scoop.it
Increasing America’s domestic energy production is something most of us can agree on, but it seems there is a fork in the road as to how to get there.

Via Stephane Bilodeau
Stephane Bilodeau's curator insight, May 4, 7:14 AM

"The phrase “energy independence” is misleading and should not be confused with isolationism or the ability to ignore events shaping world energy supplies. Producing more domestic energy, whether through renewables or natural resources, may help the U.S. improve its geopolitical bargaining position but only in the context of an energy interdependent system. Furthermore, an interconnected global economy means that the energy security of America’s allies and trade partners is vital to its own well-being."

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French village shows way to have wind take them out of debt

The wind of fortune has swept into Arfons, a village in the Tarn region of southwestern France, whose budget has rocketed fivefold in the past three years from 400,000 euros to 2.3 million euros (£1.94 million) – or 12,169 euros per person.

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International Monetary Fund Calls for Reform on Subsidies for Fossil Fuels

International Monetary Fund Calls for Reform on Subsidies for Fossil Fuels | Sustainable Energy | Scoop.it

In any case, they most certainly get some points for being on the right side of this “subsidies for fossil fuels” issue.  In fact, if this article is an accurate depiction of their stance on the subject, they’ve nailed it exactly: the world’s attempt to make gasoline artificially cheap is ruining the planet, by encouraging its use, as well as by destroying any viable process for the development of alternative sources of energy.

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Energy Efficiency Will Help India Save Money and Breathe Easier

Energy Efficiency Will Help India Save Money and Breathe Easier | Sustainable Energy | Scoop.it

Energy efficient lighting, windows, and air conditioning get more productivity out of less energy and save money at the same time. This also reduces the surging energy demand that leads to frequent blackouts.

NRDC’s India Initiative works with Indian partners to spread the benefits of efficiency across the nation. Our team just released a case study showing how Godrej & Boyce—one of India’s largest industrial corporations—transformed its South Mumbai headquarters into an energy-efficient flagship.

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