Webinar: Improve chances for success of your community solar project

Oct. 5
11 a.m.-12 p.m. MT

The Community Solar Value Project You are leaving WAPA.gov. is back with a free live webinar on Oct. 5.

What Makes the Biggest Difference in Achieving Community Solar Success? You are leaving WAPA.gov. will feature utility industry journalist Herman K. Trabish discussing case studies he covered for Utility DiveYou are leaving WAPA.gov. CSVP leaders will join Trabish to share case studies that illustrate their best-practice picks.

The discussion will be divided into coverage of the following questions and more:

  • Where’s the balance point between utility freedom and regulatory push?
  • Which lessons-learned are most often ignored—and at what price?
  • Which utilities have found the best pricing solutions, and how?
  • How do you speed up the program-design process?
  • Do pilot programs help or hinder?

Besides looking inside the machinery of successful community solar programs, speakers will explore the question of what kinds of policies most help—or hurt—community solar program innovation.

The webinar will also include an advanced look at CSVP’s new Solutions Toolkit, which offers practical approaches in the six top challenge areas CSVP has identified through its work with utility partners. In addition to some familiar analytic methods and guides that CSVP has field tested this year, the toolkit features brand new resources to help utility program designers make community solar better.

This webinar is free, but registration is required. Don’t miss this opportunity to learn the keys to making the most of your community solar project.

Source: Community Solar Value Project, 9/11/17

Upcoming deadlines

Long road leads to solar success for Southern Ute tribe

Tenacity paid off for the Southern Ute Indian Tribe on July 24, when they dedicated their newly commissioned and fully operational Oxford Solar Project on the Southern Ute Indian Reservation in Ignacio, Colorado.

The Southern Ute Tribe built their solar array on the mostly unusable Oxford Tract near a substation and just three miles from the tribal building campus.

The Southern Ute Tribe built their solar array on the mostly unusable Oxford Tract near a substation and just three miles from the tribal building campus. (Photo by the Southern Ute Indian Tribe)

The years it took to develop the 1.3-megawatt (MW), ground-mounted solar photovoltaic (PV) system ultimately ensured that the project was a winner for all involved. The array will reduce operating costs for the tribe by offsetting about 15 percent of the energy used by 10 tribal buildings. The siting of the project repurposes more than 10 acres of tribal land that was mostly unusable due to naturally occurring selenium contamination. The Oxford Tract, as the land parcel is called, has strong solar resources, is located near two substations and does not have any endangered or threatened species on it. La Plata Electric AssociationYou are leaving WAPA.gov. which is purchasing the power and providing the grid connection, counts the electricity toward its goal of 20 percent local generation by 2020.

Slow start gathers steam
The Southern Ute Tribe first began to explore the idea of building a PV system in 2006 as a way of diversifying its business interests, and launched the Southern Ute Alternative Energy LLC (SUAE) in 2008. As a for-profit business, the SUAE evaluated solar PV development opportunities on tribal lands from a business perspective. For several years, alternative energy projects remained stubbornly out of reach, too costly for SUAE to pursue.

The turning point came in 2011 when the tribe performed a new feasibility study to look at potential sites and business models. James Jensen, who had recently joined the SUAE staff, recalled that the study was very thorough. “We were open to projects either on or off of tribal land,” he said. “If it was on tribal land, what was the best location? We evaluated environmental factors like whether the land was arable or disturbed or in a floodplain.”

The study also considered the proximity of transmission and substations to potential sites and did economic modeling on hypothetical projects. “We came out of the process with a comprehensive understanding of what would make a successful solar project,” said Jensen.

The findings determined that the Oxford Tract was the most suitable location for a utility-scale solar development, and that a grant was needed to make the project economical.

JumpSTARTing project
Southern Ute Grant Specialist Jody Rosier began working with Jensen on the grant application to submit to the Department of Energy (DOE). Financial help wasn’t the only thing DOE had to offer the tribe, however.

Just as important, Rosier recalled, was the tribe’s participation in the Strategic Technical Assistance Response Team (START) Program. START, a program of the DOE Office of Indian Energy, provides technical assistance to help Native American tribes complete renewable energy and energy efficiency projects. “START analyzed and validated the findings of the feasibility study,” Rosier recalled, “and helped the tribe to establish a relationship with DOE.”

The program also helped the tribe determine the siting of the project near substations belonging to LPEA. “Initially, the project was planned as a ‘virtual metering’ situation, where any kilowatt-hours being generated would offset kilowatt-hours the tribe was using,” explained LPEA Engineering Manager Ron Meier. “Siting the array near a substation was key to making physics work. It really simplified the development process for them.”

Beyond that, Meier added, the purchase power agreement was pretty straightforward. With a budget of $3 million co-funded by the tribe and a $1.5 million grant from the DOE, it was time to start building.

Ready, set, install!
SUAE issued a request for proposals at the end of 2014 for an 800-kW system. It was around that time that the solar industry saw a significant drop in the price of panels. “We were pleasantly surprised when the bids came back to find that we could afford to build a somewhat larger project,” said Jensen.

The tribe chose Boulder, Colorado-based Namaste Solar to design the project for the tribe and install the tracking panels. Jody Rosier noted that tracking technology is becoming more common in new solar installations. “Panels that follow the sun across the sky generate more electricity and that improves a project’s economics,” she said.

The long process that culminated in the July 24 celebration provided the Southern Ute tribe with a thorough education in solar development. Jensen observed that the most important lesson they learned might be to keep the first project simple. He pointed to the selection of a site that did not require an environmental impact study as one factor that kept the project from getting too financially and legally complicated.

Although grants that require matching funds may put projects beyond a tribe’s reach, Rosier encourages tribes that are interested in developing renewable energy systems to investigate available grants. “Grants that require matching funds may not work for tribes,” she warned. “But once the renewable system is up and running, it provides years of sustainable electricity and needs little maintenance.” 

Source: Office of Indian Energy Policy and Programs, 7/25/17

White paper, training explore evolution of demand response

Utilities have long used demand response to deal with high wholesale electricity prices or generation shortfall. What was once accomplished with phone calls to large industrial customers or one-way controls on aggregated residential loads is now done in near-real time with sophisticated two-way communication. Yet, despite the fact that this strategy has become an integral part of grid operations in the U.S., there has been no agreement on a definition of demand response.

The Peak Load Management Association You are leaving WAPA.gov. (PLMA) set out last year to develop a consistent definition for demand response to use across its three training courses on the topic. A demand response dialogue that included several experts in the field took place in September 2016 and was recorded and archived on the PLMA website. At the 2016 PLMA conference later that year, the discussion continued with a panel presentation, Defining the Evolution of Demand Response: From 1.0 to 3.0 and Beyond.

Demand response evolution

Artwork by Peak Load Management Association

Three epochs
The white paper from these discussions breaks down demand response into three periods beginning with the first interruptible tariffs for large commercial and industrial customers. Demand response was primarily used to provide energy (MWh) and capacity (MW) during periods of high wholesale prices, shortfall of generation or transmission capacity or unexpected emergency grid-operating situations. Utility staff contacted a commercial customer, usually a day or hours ahead of a forecasted event, to manually change power consumption onsite. Also, residential customers voluntarily allowed utilities to install load-control devices to cycle their water heaters and air conditioners. Verification usually came from the utility meter which was read on its regular cycle.

Current demand response strategies provide more precise energy and capacity to support the wholesale marketplace, along with sophisticated, near-instantaneous ancillary services such as non-spinning and spinning reserves and frequency and voltage support. Measurement and verification occur in almost real-time measurements (either utility or non-utility) and often serve as confirmation of customer performance during demand response events. Two-way communication also allows for greater customer feedback and engagement.

Demand response is evolving to be a component of broader distributed energy resources both behind and in front of the meter. The service benefits demand response offers in this capacity, both to the grid operator and to the customer, include volt/var control, renewable energy integration and localized distribution system congestion management. The future of demand response may move away from traditional utility control to automatic, pre-programmed triggers based on price thresholds.

Learn more
Two upcoming courses expand on PLMA’s demand response white paper to provide utility and regulatory staff and industry trade allies with a greater understanding of the evolution of demand response. Join subject matter experts from PLMA member organizations in Portland, Oregon, Sept. 26 or in San Francisco, California, Oct. 25.

Presentations will cover current technology and market conditions, utility case studies and more. Demand response will be compared to other load management strategies, and participants will discuss how to design a load management portfolio that serves your utility’s needs.

The training is open to all industry stakeholders, with significantly discounted rates to PLMA member organization staff.

Source: Peak Load Management Association, 8/8/17

Community solar workshop presentations now available

If you missed Community Solar Procurements, Programs and Pricing, a workshop WAPA cosponsored with the Community Solar Value Project You are leaving WAPA.gov. (CSVP) and SunShot Solar Market Pathways, you can now download the presentations from the CSVP website.

WAPA Energy Services Manager Ron Horstman (standing right) talks about the opportunities and challenges community solar represents for utilities.

WAPA Energy Services Manager Ron Horstman (standing right) talks about the opportunities and challenges community solar represents for utilities.

The free event was held at WAPA’s Electric Power Training Center in Golden, Colorado, and drew strong attendance from every type of utility, especially in the West. As the workshop title stated, the agenda focused on the logistical aspects of building a community solar project and explored ways to make projects more successful. Speakers and participants discussed best practices for analyzing solar development opportunities, writing requests for proposals, engaging internal and external stakeholders, working with contractors and vendors and designing rates.

Customers share experience
Several WAPA customers were on hand to share their experiences with developing their own projects. Luis Reyes of Kit Carson Electric Cooperative You are leaving WAPA.gov. sat on a panel that focused on improving the procurement process. The Taos, New Mexico, utility launched its first community solar project in 2012 and has an ambitious initiative to install 35 megawatts of photovoltaics this year.

Participants throw ideas against the wall to see what sticks during table-top sessions on program design, procurement, rate design and marketing.

Participants throw ideas against the wall to see what sticks during table-top sessions on program design, procurement, rate design and marketing.

A panel on pricing challenges included John Phelan from Fort Collins Utilities You are leaving WAPA.gov. in northern Colorado. As a pioneer with Rocky Mountain Institute in clean energy and sustainability solutions, the city of Fort Collins has discovered that success brings a new set of challenges. For example, the utility is wrestling with how to design a rate that accommodates both a legacy community solar garden and a new array for qualified low-income customers.

Poudre Valley Rural Electric Cooperative You are leaving WAPA.gov. is currently developing a 6,000-panel community solar project with carve-outs for local nonprofit organizations and another for income-qualified customers. Making community solar available to customers who need the most help with utility bills was another topic that received a lot of attention. Utilities are experimenting with different business models for low-income projects, but most agree on the potential benefits: freeing up more money for other needs, bringing more certainty to monthly bills and raising energy awareness in a hard-to-reach group.

Attendees were all at different points on the learning curve with community solar. Representatives from the City of Fort Collins Utilities, Kit Carson Electric Cooperative and the city of Lamar, Colorado, shared their experiences during the free workshop.

Attendees were all at different points on the learning curve with community solar. Representatives from the City of Fort Collins Utilities, Kit Carson Electric Cooperative and the city of Lamar, Colorado, shared their experiences during the free workshop. (Photo by Jill Cliburn)

Ask for more
WAPA thanks the Community Solar Value Project for partnering with us to put on Community Solar Procurements, Programs and Pricing. Utilities are still learning about this form of distributed energy and how to gain the most benefits from it for their customers and their own operations. To learn more, check out the workshop presentations, along with past CSVP webinars. Also, let us know if there are other types of workshops you would like to see WAPA present, or partners or subject matter experts we could collaborate with.

New LBNL study helps utilities compare natural gas, renewables

Low wholesale power prices and an uncertain future for federal power regulations have made it trickier—and riskier—than ever for utilities and independent power producers to plan for and invest in generation.

Using Probability of Exceedance to Compare the Resource Risk of Renewable and Gas-Fired Generation seeks to simplify decision-making with clear, cold numbers. The new Lawrence Berkeley National Laboratory (LBNL) study offers a new way to compare the resources, showing that renewables are an economic and reliable choice.

Resource risk can be very difficult to mitigate for long-term investments in power plants, and it manifests differently for renewable and natural gas-fired generation. For renewables, the risk is “the quantity of wind and insolation will be less than expected.” For natural gas, the risk is “natural gas will cost more than expected.”

Statisticians label the mid-range case “P50,” but calculate a probability for all possibilities from P1 to P99. Probability of exceedance is commonly used by utility planners “to characterize the uncertainty around annual energy production for wind and solar projects,” the paper reports. It “can also be applied to natural gas price projections.”

The study’s “statistical concept” quantifies the risk at each P-level of expected renewables output levels and natural gas prices and factors them into a levelized cost of energy comparison. “In general, higher-than-expected gas prices appear to be riskier to ratepayers than lower-than-expected wind or solar output,” noted LBNL researcher and study co-author Mark Bolinger.

Utilities contracted for or owned 55 percent of 2016’s installed wind capacity You are leaving WAPA.gov. and are expected to contract for two-thirds of the 13.2 gigawatts of solar You are leaving WAPA.gov. expected to be added this year. Yet, utility planners may be underestimating the hedge value of these renewable resources. A survey of more than 600 sector professionals You are leaving WAPA.gov. by Utility Dive showed only 7 percent see natural gas price volatility as the main reason to invest in renewables.

Views on the LBNL paper differ across the energy industry with Charlie Reidl, executive director of the Center for Liquefied Natural Gas You are leaving WAPA.gov. insisting that global demand would not put significant price pressures on proven U.S. reserves. Other authorities, however, argue U.S. reserves are being depleted too rapidly You are leaving WAPA.gov. to keep up with growing demand.

The disagreement underscores the importance of a method like LBNL’s that quantifies the risk and uncertainty. Renewable industry representatives have called the LBNL paper an important contribution that could be useful for utility integrated resource planning.

Read more about the study and industry reactions in Utility Dive You are leaving WAPA.gov. and download the report and webinar presentations from the LBNL website.

Source: Utility Dive, 6/29/17

SMUD sponsors solar model car competition

Electric vehicles (EVs) hold a lot of promise for greening the transportation sector, and could do even more if the electricity that powers them comes from the sun. To encourage the next generation of consumers to think about automotive innovation, SMUD You are leaving WAPA.gov. sponsors an annual Solar Car Race for high school students.

Students competing in the Solar Car Race all start with the same kit and then add custom touches.

Students competing in the Solar Car Race all start with the same kit and then add custom touches. (Photo by SMUD)

More than 300 high school students competed in this year’s event, held at Cosumnes River College You are leaving WAPA.gov. on April 19, as part of Earth Week. The competition is open to any high school in SMUD’s service territory.

Community comes together
The race took place in the college’s quad, and the construction department designed and built the wooden race track used by the racers. The event also gives students an excellent opportunity to visit a community college campus and experience what it has to offer.

The Sacramento Electric Vehicle Association You are leaving WAPA.gov. and EV owners were also on hand to exhibit many models of available EVs and to discuss the technology and benefits of driving a plug-in hybrid electric vehicle.

Tools for students, teachers
SMUD provides each school registered with up to six solar car kits, which contain a 12-watt solar module from PITSCO You are leaving WAPA.gov. and car accessories from Solar MadeYou are leaving WAPA.gov. Using the same solar panels, motors and gear sets as a jumping-off point, the students choose their own materials and design the car they are going to race. The entries compete for not only the fastest car, but also for best design, most sustainable, best engineering and most creative design. Each participating student receives an event t-shirt, also provided by SMUD.

In addition to the kits, SMUD also offers professional development workshops for teachers interested in using the solar-powered cars in their science or physics curriculums. A variety of workshops and training, exhibits and online resources are available to both teachers and students through SMUD’s Energy Education & Technology Center.

Racing toward future
Participation in the solar car race has doubled since it began 13 years ago, which is not surprising in a territory that has around 8,000 electric vehicles. The Solar Car Race is loosely based on the Department of Energy’s Junior Solar Sprint, a classroom-based national competition of solar-powered model cars for students, grades six through eight.

As a community-owned, not-for-profit utility, SMUD is focused on balancing its commitment to low rates with the goal of supporting regional vitality, and education is central to that effort. Through events like the race, the Solar Regatta and an Energy Fair, SMUD gives back to its community, while helping to develop the professionals who will create the energy solutions of the future.

Source: SMUD, 4/24/17

SEPA report offers guidance on planning for distributed energy resources

As tempting as it may be for utilities to ignore the growth of distributed energy resources (DER), they must plan for integration of this form of generation. To help power providers develop a strategy to accommodate increasing DER penetration, Smart Electric Power Alliance You are leaving WAPA.gov. (SEPA) has published a two-volume report, Beyond the Meter: Planning the Distributed Energy Future.

Volume I: Emerging electric utility distribution planning practices for distributed energy resourcesThe utility industry is changing and many of the changes are being driven by consumers seeking new energy choices, technology advances leading to lower costs and better performance and new policies. Both utilities and their customers will have to work together to ensure grid reliability as distributed energy resource (DER) penetration increases. Engineering consultants Black and Veatch You are leaving WAPA.gov. collaborated with SEPA to provide a new strategy to become a proactive distribution planning utility.

Volume I: Emerging electric utility distribution planning practices for distributed energy resources outlines why traditional distribution system planning framework does not meet the needs of today’s grid. Five investor-owned and public power utilities shared their drive, progress and challenges when planning and proactively integrating distributed energy resources within their distribution system. The report covers:

  • Practical framework for distribution planning utilities
  • Insight from sector leaders on challenges and successes
  • Tools to better understand customer needs

Volume II: A case study of integrated DER planning by Sacramento Municipal Utility District Volume II: A case study of integrated DER planning by Sacramento Municipal Utility District details how SMUD used the findings of Volume I to forecast DER growth and plan for distribution challenges. Through the lens of SMUD, the report looks at the broader scenarios the electric utility industry can expect to encounter. The report covers:

  • Results of the new utility planning strategies
  • Risks and opportunities of new DER systems
  • More on the new distribution system planning framework

Beyond the Meter is free to download for both SEPA members and non-members.

Source: Smart Electric Power Alliance, May 2017

CIPCO builds Iowa’s largest utility-scale solar project

In Iowa, where renewable energy is often synonymous with wind, one generation-and-transmission (G&T) cooperative is making a big investment in utility-scale solar generation. Over the last year, Central Iowa Power Cooperative You are leaving WAPA.gov. (CIPCO) built the state’s largest photovoltaic (PV) project across five sites in its service delivery territory.

The completed Urbana Solar Acres development from a drone's-eye view.

The completed Urbana Solar Acres development from a drone’s-eye view. (Photo by Central Iowa Power Cooperative)

The member cooperatives involved in the project are Clarke Electric Cooperative, You are leaving WAPA.gov.Consumers Energy, You are leaving WAPA.gov. Eastern Iowa Light & Power Cooperative, You are leaving WAPA.gov. East-Central Iowa REC You are leaving WAPA.gov. and Pella Cooperative Electric. You are leaving WAPA.gov. The 5.5-megawatt (MW) project will provide electricity to all CIPCO members of all income levels. “It is our mission as a cooperative to support all our members equally,” noted Communications and Public Affairs Manager Kerry Koonce. “Choosing the utility-scale model for the project rather than community solar accomplishes that.”

Becoming solar leader
In late 2015, CIPCO issued a request for proposals (RFP) for the development of the first of what is intended to be a two-phase utility-scale solar project.

Construction workers install solar racks at the Urbana Solar Acres on East-Central Iowa REC’s site.

Construction workers install solar racks at Urbana Solar Acres on East-Central Iowa REC’s site. (Photo by Central Iowa Power Cooperative)

Several of CIPCO’s 13 members showed interest in hosting a site. Then followed the hard work of determining which sites would be appropriate. “Some potential sites didn’t have sufficient resources, others had leasing issues,” recalled Koonce. “It is so important to make sure to get the correct layout, especially with a first-time project.”

CIPCO had help from the National Renewables Cooperative You are leaving WAPA.gov. (NRCO), a trade group formed by cooperatives to facilitate the development and deployment of renewable energy resources. NRCO managed the RFP process and supplied engineering expertise for the project. CIPCO has used NRCO resources in the past to review wind-purchase contracts as well.

To install the arrays, CIPCO selected Azimuth Energy LLC You are leaving WAPA.gov. of St. Louis, Missouri, an engineering, construction and development-support service company for renewable energy and energy efficient projects. The design of the ground-mounted arrays included features like fixed-axis racking and transformerless string inverters to reduce installation cost, improve performance and simplify maintenance. The projects were completed on schedule by the end of 2016.

Sun keeps rising
The new solar generation is part of a portfolio that includes 199 MW of wind power, 14 MW of WAPA hydropower and 1.6 MW of waste-to-energy generation. In all, CIPCO gets nearly 60 percent of its power supply from low-carbon resources. Koonce observed that clean energy has always been important to CIPCO’s members and with the decline in solar panel prices, the time was right to add solar to the mix.

Consumers Energy representatives celebrate the opening of the Marshalltown Gateway Centre solar array..

Consumers Energy representatives celebrate the opening of the Marshalltown Gateway Centre solar array. (Photo by Central Iowa Power Cooperative)

According to Koonce, the solar site will eventually pay for itself in the energy it produces, although the exact payback period is not known. The $9 million cost of all five solar sites, spread over 20 years to take advantage of some federal solar tax credits, is significantly less than the cost of building a new coal-fired plant, she added.

CIPCO’s overall resource plan focuses on natural gas, wind and more solar, with a second phase of solar development planned for this year. Battery storage is not part of the conversation at this point, Koonce noted, because the cost of storage systems is still very high compared to CIPCO’s stable rates. For now, “Our members won’t be seeing an increase due to adding solar,” Koonce says. “The resource is very cost effective for us.”

But members can be sure that CIPCO will be watching battery storage and other new technologies, as the G&T continues to build its diverse, affordable and environmentally friendly power supply.

Roseville Electric program takes home efficiency to next level

Even the most successful energy-efficiency program, like Roseville Electric Utility’s You are leaving WAPA.gov. high-performing BEST Homes partnership, needs a periodic renovation if it is to continue its success. To keep up with the changing times—and codes—the municipal utility recently unveiled its new Roseville Advanced Homes Program (RAHP).

Roseville Electric Utility's updated residential efficiency program is built around the principle that the best time to install high-efficiency features is in early construction.

Roseville Electric Utility’s updated residential efficiency program is built around the principle that the best time to install high-efficiency features is in early construction. (Photo by California Advanced Homes Program)

RAHP is the next step in market evolution that Roseville began with BEST Homes, explained Program Manager Mark Riffey. “When we launched BEST Homes, Roseville builders weren’t installing solar and energy efficiency was nothing more than doing what was required,” he recalled. “But [California Building Standard] code has caught up with the program and will pass it soon.”

Title 24 You are leaving WAPA.gov. now requires new homes to be solar ready to meet requirements, making incentives for solar unnecessary. By 2020, the code will require all new homes to meet the net-zero energy standard.  RAHP encourages builders to meet that requirement proactively, building efficiency into homes before they even think about solar.

Starting on right foot
The program aims to get builders involved well in advance of submitting plans to the city, said Riffey. “The earlier they enter the conversation, the better chance of success.”

Any residential builder planning a development in Roseville may participate in RAHP by signing a prerequisite agreement confirming that their homes will include:

  • 75-percent high-efficacy lighting
  • HERS verification of Quality Insulation Installation
  • Electric vehicle charging station pre-wiring

These measures were chosen to provide a solid energy-efficiency foundation and because they are easy and relatively inexpensive to install early in construction. “The time to make sure a house is insulated correctly or to put in a dedicated breaker and conduit for an electric vehicle charger is when you are in the design phase or early in construction,” Riffy pointed out. “You can add those things later, but it is much more expensive.”

Once the prerequisites are in place, builders can earn incentives up to $3,500 per house for adding bonus measures such as whole-house fans, high-performance attics and LED lighting. Roseville is considering adding battery storage and triple-pane windows to RAHP in the future to move homes closer to the net-zero energy goal.

The completed home, with its tight shell and efficient systems and equipment, is then ready for a solar array. The homeowner can size the photovoltaic system for a load that has been reduced up front by best construction practices. “RAHP leads builders down the path to be aware of the measures that will get them to the 2020 requirement of zero-energy homes,” explained Riffey.

Or, to put it another way, it is going to take an integrated approach to meet the ambitious clean energy goals California has set for itself.

Working together
That focus on integration may be one of the biggest changes Roseville has made in its updated residential construction program. Where BEST Homes was a local effort guided by local stakeholders, RAHP was designed with the help of a third-party administrator to align with Pacific Gas and Electric Company’s (PG&E) California Advanced Home Program You are leaving WAPA.gov. (CAHP).

TRC, an engineering and construction management consultant, has administered CAHP for PG&E since 2011. “It was the best use of our resources,” observed Riffey. “TRC has spent years working with Title 24, and they can tell us measures that get the most bang for our buck.”

Coordinating with PG&E made sense, as well, because many Roseville residents are PG&E natural gas customers. After all, a well-insulated home is going to cut both heating and cooling costs. “Builders need to turn in only one set of papers for both programs,” said Riffey. “Anything that streamlines the program for the builder/customer improves its chance for success.”

Roseville Electric Utilities aims to succeed. Over its ten-year run, BEST Homes succeeded beyond expectations. A very high percentage of homes recently built in Roseville are solar ready, and California has made that requirement part of its building code. If RAHP enjoys the same kind of success, Roseville’s housing stock may set a zero-energy example for the whole state.