Category: BEP Blogs

Intermittent renewables at high penetrations will bring new challenges for the grid. But how big will they be? And is it true that wind and solar will necessarily need storage or natural gas back-up at high levels?

The International Energy Agency (IEA) wanted to know, so it modeled a variety of high-penetration scenarios in eight geographic regions around the world. Hugo Chandler, a senior policy analyst with the IEA, explains the organization’s findings to Climate Progress:

Variability is not just some new phenomenon in grid management. What we found is that renewable energy is not fundamentally different. The criticisms of renewables often neglect the complementarities between different technologies and the way they can balance each other out if spread over certain regions and energy types.

Grid operators are constantly working to balance available supply with demand — it’s what they do. There are always natural variations that cause spikes in demand, reductions in supply, or create disturbances in frequency and voltage. Once you see there are a variety of ways to properly manage that variability, you start whittling away at the argument that you always need storage or a megawatt of natural gas backup for every megawatt of renewable energy.

Theoretical modeling is important. But what companies are doing in reality?

Here are five of the top methods for integrating renewable energy into the grid — proving that intermittency isn’t the showstopper that critics make it out to be. Explanations of each of these with videos are below

Read the complete article at Grist

 

SAN FRANCISCO, CA — EnerNOC’s Gregg Dixon compares the competition between on-site renewable energy generation versus reducing energy demand to an MTV celebrity death match.

Which is more valuable?

In one corner we have on-site renewable energy projects that tend to carry more sex appeal, largely due to the industry’s great job of marketing itself; there’s even a renewable girls calendar. In the other corner are demand response and energy efficiency, which many would agree are anything but sexy.

The complex answer is both, Dixon said during a webcast held at GreenBiz.com’s VERGE virtual conference. Employing many strategies and technologies are going to ultimately maximize energy management programs, but companies have to find a way to “reduce before they produce.”

“If we don’t get efficient first, it’s the equivalent of not filling the hulls of a ship while replacing the masts and sail,” Dixon said.

There is plenty of research supporting that energy efficiency is the single-largest untapped source for energy management, Dixon said. On a relative cost basis, energy efficiency “blows renewable energy out of the water.” Some predict solar energy could reach cost parity with the expected electric retail rates within five years, Dixon said, but noted these types of predictions aren’t new.

Read the complete article at GreenBiz.com

 

The International Organization for Standardization has released ISO 50001, a standard for energy management systems.

The standard aims to help organizations establish the systems and processes to improve their energy performance, including efficiency and consumption. The ISO says the standard is applicable to all types and sizes of organizations.

ISO 50001 is designed to help companies make better use of their energy-consuming assets, evaluate and prioritize the implementation of energy-efficient technology, and promote efficiency throughout the supply chain. It is designed to integrate with other management standards, especially ISO 14001 on environmental management and ISO 9001 on quality management.

The new standard specifies requirements for measurement, documentation and reporting, and for equipment design and procurement processes. It does not prescribe specific performance criteria, though it does require participating companies to commit to continual energy performance improvements.

Read the complete article at Environmental Leader

A brochure giving an overview of the standard target=”_blank”is available here.

 

Buildings consume more than 70 percent of the electricity generated in the U.S. Much of that energy goes wasted due to building inefficiencies. It is well documented that improving building energy efficiency can reduce energy use and costs by up to 50 percent. So why don’t more building owners take steps to improve building energy performance? Simply put, they don’t know where to begin.

Most owners don’t know how well or poorly their buildings use energy. This type of information is not typically included in a monthly energy bill. Consequently, many owners are spending hundreds and even thousands of dollars more than they need to on energy. In this economy, owners cannot afford to waste a single dollar on unnecessary expenses.

San Francisco city officials want to make sure more owners have the information they need to reel in energy waste and spending. Next week, the city’s Board of Supervisors will conduct its first reading of a proposed ordinance that would make benchmarking standard for commercial property owners.

Read more at GreenBiz Green Buildings:

For those who want to know what something is in the field of energy efficiency and renewable energy technologies or how things such as a wind turbine or solar panels work, DOE’s Office of Energy Efficiency and Renewal Energy (EERE) has launched the new Energy Basics Website. The fresh destination explains the concepts behind everything from hybrid electric vehicles to ocean wave energy. It also gives overviews of home, building, and industrial energy efficiency, telling how various components and approaches can be used to make daily life better. The site features videos, highlighting wind energy and solar power among other renewable sources, and includes an energy term glossary. Be sure to check back often, because Energy Basics will be expanding and adding new information over time.

Energy-Consuming Public Benefits as Governmental Officials
Substantially Improve International Energy Conservation Code

CHARLOTTE, NC, November 1, 2010 – “The votes that will have the most profound impact on national energy and environmental policy this year were not held in Washington or a state capital, but by governmental officials assembled by the International Code Council (ICC) in Charlotte, N.C.,” said William Fay, Executive Director of the broad-based Energy Efficient Codes Coalition (EECC).

The ICC votes to improve the efficiency of the next edition of America’s model energy code governing home and commercial building construction, additions and renovations will most likely achieve the 30% boost sought by the U.S. Department of Energy, the U.S. Conference of Mayors, the National Association of State Energy Officials, governors, lawmakers and EECC.

“This 30% increase in building efficiency, coming just days before the elections, is a winning outcome for all Americans,” said Kateri Callahan, president of the Alliance to Save Energy. “It’s clear by their overwhelming votes that building officials across the U.S. recognize that we can lock in significant energy savings for generations to come by making efficiency improvements at construction or renovation, when they’re cheapest and easiest.”

“Reducing wasted energy from the nation’s largest single user – homes and commercial buildings, which consume nearly half our energy – was the byword of the nearly 500 state and local government representatives who spent five days of rigorous hearings to evaluate and pass judgment on hundreds of proposals to improve (or weaken) the International Energy Conservation Code’s (IECC) residential and commercial chapters,” Fay added. “We congratulate the ICC for the tremendous efforts of its members to finish this code and achieve substantial energy efficiency.”

An Integrated, “Whole Building” Approach to Improving Efficiency in Homes and Commercial Building Construction. Comprehensive proposals offered by the U.S. Department of Energy, working with many other stakeholders, addressed all aspects of residential and commercial building construction, laying a strong foundation for residential efficiency gains and leading commercial building efficiency improvements. To meet the 30% goal in the residential code, voting delegates added a number of improvements to DOE’s foundation from EECC’s comprehensive package, “The 30% Solution 2012,” and other stakeholder proposals. The resulting residential improvements will:

• Ensure that new homes are better sealed to reduce heating and cooling losses;
• Improve the efficiency of windows and skylights;
• Increase insulation in ceilings, walls and foundations;
• Reduce wasted energy from leaky heating and cooling ducts;
• Improve hot-water distribution systems to reduce wasted energy and water in piping; and
• Boost lighting efficiency.

Commercial Gains Should Match Residential: Officials adopted the joint DOE/New Buildings Institute/ American Institute of Architects package for commercial buildings which, along with many of the features cited above, includes continuous air barriers; daylighting controls; increasing the number of climate zones where economizers are required; and a choice of three paths for designers and developers to increase efficiency: using renewable energy or installing more efficient HVAC equipment or installing more efficient lighting systems. It also requires the “commissioning” of new buildings, integrally linking efficiency building designs with lifelong building performance by applying a systematic approach to building quality assurance that monitors, identifies and makes corrections when energy savings aren’t living up to expectations. A number of additional IECC improvements supported by EECC and other stakeholders were adopted on top of the commercial package.

Rejecting Proposals That Weaken Efficiency
Government voting representatives also rejected several proposals to weaken the IECC. Key among them were proposals to reinstate a provision of the 2009 IECC that eliminated “tradeoffs,” under which builders installed less efficient insulation and windows in exchange for more efficient heating & cooling (HVAC) equipment that would have been installed anyway. “Efficiency shouldn’t be an either/or proposition,” Fay said. “We need to both improve building envelopes and install high-efficiency HVAC systems. It makes no sense to ‘trade away’ the long-lasting energy savings from tighter buildings.”

The delegates also voted almost unanimously to adopt a proposal offered by Virginia code officials to replace the weaker provisions of the energy chapter of the International Residential Code with a reference requiring that all residential buildings comply with the IECC. As a result, the IECC will be the sole source for energy efficiency provisions for both residential and commercial buildings.

While All Americans Will Share the Energy Security and Environmental Benefits of More Efficient Buildings, Home/Building Owners and Occupants Top List of Beneficiaries
By reducing monthly energy bills, efficiency improvements generate positive cash flow that rapidly recoups the cost of these measures (efficient buildings are also more comfortable for their occupants). Because of long building lives and the higher cost of retrofits, many of the efficiency improvements made today will benefit current and future home and building owners for generations to come.
The efficiency improvements adopted by the ICC incorporate readily available technologies. As one homebuilder testified, a 30 percent boost in new home efficiency is now a modest target, with a growing number of green builders across the nation delivering new homes well beyond that threshold. Because the inability to pay utility bills is the second leading cause of foreclosures and evictions, currently at record highs, low-income housing advocates argue that the efficiency improvements will make it more likely that low-income families will be able to afford to keep their homes. Finally, a study by U.S. DOE’s National Renewable Energy Laboratory found that an average home that’s 30 percent more energy-efficient returns $511 a year in energy savings to homeowners after taking into account the small mortgage payment increase needed to pay for the efficiency improvements.

From the national economic perspective, efficient buildings will demonstrably reduce U.S. energy consumption, which will help stabilize energy costs to businesses and manufacturers, defer the need for new power plant construction and, by reducing energy demand, improve national energy security.

“The ‘winners’ run the gamut from homeowners to businesses operating in areas of the country with high energy costs and insufficient energy supplies to manufacturers to cities trying to reduce their carbon footprint to a nation struggling to reduce energy imports,” Fay added.

What’s Next
State Adoption & Code Compliance. “The next goal will be for states and localities to adopt the 2012 IECC so that all new homebuyers and commercial building owners can begin to benefit from improved efficiency,” Fay added. “And because states have committed to the federal government to demonstrate 90% compliance with the IECC by 2017, we want to work to support collaboration at all levels of government to ensure adequate training and other support for the code officials who must meet this ambitious compliance target.”

Future Improvements in America’s Model Code. “A number of energy-saving proposals offered by the EECC and other stakeholders received majority support but not the 2/3 majority needed for adoption,” Fay observed. “While this is unfortunate, we know that the governmental officials present in Charlotte used their best judgment to guide their vote on the 2012 code. But because states and local jurisdictions are free to consider these energy-saving improvements individually, EECC will work with them, while refining the proposals for inclusion in the ICC’s next round of hearings to develop the 2015 IECC.”

About EECC
The Energy Efficient Codes Coalition is a unique, broad-based alliance of longstanding energy efficiency advocates – from government, national energy efficiency groups, regional energy efficiency alliances, environmental groups, utilities, affordable housing advocates, architecture, academia/think tanks, energy consumers and businesses, and labor. Together, the coalition authored “The 30% Solution 2012” a comprehensive code change proposal that employs existing, “state-of-the-shelf” technologies to boost energy efficiency in the 2012 residential model energy code by up to 35% over the 2006 IECC baseline efficiency levels. The coalition also opposes proposals that either weaken energy efficiency or include industry- or product-specific special exemptions. The EECC is housed at the Alliance to Save Energy (a founding member). For more information, visit www.thirtypercentsolution.org.

About the Alliance to Save Energy
The Alliance to Save Energy is a coalition of prominent business, government, environmental, and consumer leaders who promote the efficient and clean use of energy worldwide to benefit consumers, the environment, economy, and national security.