Tag Archives: Pv Solar

Solar Panels at Data Center to Save State Millions

By News Staff, Techwire

The California Department of Technology and the Department of General Services are touting the energy efficiency and resulting savings from a solar canopy in the parking lot of the state’s main data center in Rancho Cordova. The solar panels, which feed the data center, have been in place for about a year, according to a blog post on CDT’s website.

“Since its completion in September 2018, the 76,000-square-foot solar canopy, located at CDT’s Gold Camp Data Center facility in Rancho Cordova, has generated more than 1 million kilowatt hours of electricity and is on track to double that amount annually,” says the blog post. “The energy generation will account for about 10 percent of the facility’s annual electrical demand while reducing nearly 10 tons of greenhouse gas emissions.”

The energy produced on a typical summer day from the “green” structure, which covers 316 parking spaces, can reach 1 megawatt of power per hour — enough to power 164 homes, according to CDT.

Read full article from Techwire

Amazon Joins Walmart in Blaming Tesla Solar Panels for Fires

By Dana Hull and Matt Day, Bloomberg

Walmart Inc. isn’t the only corporation that has seen its Tesla Inc. solar panels catch fire.

On Friday, Amazon.com Inc. said a June 2018 blaze on the roof of one of its warehouses in Redlands, California, involved a solar system that Tesla’s SolarCity division installed. The Seattle-based retail giant said by email that it has since taken steps to protect its facilities and has no plans to install more Tesla systems.

Tesla also said in a statement it worked with Amazon following the “isolated event” last year that occurred in an inverter at one of the sites. “Tesla worked collaboratively with Amazon to root cause the event and remediate,” it said. “We also performed inspections at the other sites, which confirmed the integrity of the systems,” adding that all 11 Amazon sites are generating energy and are monitored and maintained.

News of the Amazon fire comes days after Walmart sued Tesla, accusing it of shoddy panel installations that led to fires at more than a half-dozen stores. The claims threaten to further erode Tesla’s solar business as the company is fighting to gain back market share.

Read full article from Bloomberg

Related Article: Amazon Echoes Walmart’s Claims That Tesla Solar Panels Sparked Rooftop Fire (Gizmodo) – Aug. 24, 2019

California solar plus storage shows consistent installs, residential growth

By John Weaver, pv magazine

The California Solar & Storage Association (CALSSA) has collected and shared data on California’s behind the meter solar+storage activity in the first half of 2019, with data that goes back to the beginning of 2016.

The data suggests that within the three main investor owned utilities – San Diego Gas & Electric, Southern California Edison and Pacific Gas & Electric – commercial interconnections are running slightly behind the 2018 numbers in terms of projects interconnected. However, residential systems seem to be picking up a bit. 

One chart that gives a bit of indigestion is the time for approval for stand alone and solar+storage installations – if only because of the high variance, but also because quite a few larger projects take more than a year to get approved. The projects are divided into residential, commercial, education and industrial with time frames ranging roughly from 30 to 60 days for residential, to two years for industrial systems. Adding solar power to a storage installation seems to speed up the amount of time for a residential installation, however, it slows a commercial installation.

In Pacific Gas & Electric territory 20% of residential energy storage systems are stand alone, while in the other territories solar is coupled with storage 99-100% of time. Commercial installations had an inverse relationship though – with only 40% of storage projects coupled with solar power, suggesting the market is being driven by other factors like demand charges.

Read full article from pv magazine

 

Solar is coming to all new California homes. How many in Fresno already get power from sun?

By Tim Sheehan, The Fresno Bee

More than 1 million California homes are already soaking up sunshine with solar panels to generate electricity. Next year, that number will surge as new building standards take effect requiring all new homes permitted after Jan. 1 to have solar photovoltaic systems.

In Fresno, which already has the third-highest number of homes in California with rooftop solar panels, the number continues to grow even before the new California Energy Commission standards take full effect. Through the first six months of 2019, the city issued permits for more than 1,640 residential solar systems as additions or alterations to existing homes. That doesn’t count solar panels that home builders or developers are already offering as a feature on new homes.

As of June 30, more than 23,300 Fresno homes had solar systems in operation under the state’s Net Energy Metering (NEM) program. That’s third behind only San Diego and Bakersfield among California cities, according to data from Go Solar California. The total electrical output capacity of Fresno’s residential solar panel systems amounted to almost 148,700 kilowatts of direct current (DC) power. That’s about 144,000 kilowatts of alternating current or AC electricity after it’s converted from DC.

Fresno also has another 1,742 homes with solar installed from 2007 through 2017 under the older California Solar Initiative program.

Read full article in the Fresno Bee

Sunnova and PetersenDean Partner to Deliver Integrated Solar Solutions to California Homebuilders

Sunnova Energy International Inc., one of the leading U.S. residential solar and battery storage service providers, today announced a new strategic partnership with PetersenDean Roofing & Solar, one of the largest full-service, privately-held roofing and solar companies in the United States.

Working together, Sunnova and PetersenDean will deliver Sunnova’s solar and storage services to home builders across California.

California continues to lead the nation in residential solar and is expected to grow significantly because of the California Energy Commission solar mandates. This far-reaching energy policy was adopted last year and requires solar photovoltaic (PV) electric systems to be installed on virtually every new residential dwelling built in the state. It will apply to all houses, condos and apartment buildings up to three stories that secure building permits after January 1, 2020.

Read full press release from Sunnova

Kroger Announces its Largest Solar Energy Project to Date

By Emily Holbrook, Energy Manager Today

Ralphs, a subsidiary of The Kroger Co., recently announced the installation of a photovoltaic solar power array at its automated distribution center in Paramount, Calif., a 555,000-square-foot building that provides products to 190 Ralphs stores and 95 Food 4 Less stores throughout Southern California.

This is the largest solar energy project to date for Kroger, featuring more than 7,000 solar panels to harness energy from the sun. The new installation has a 2 MW AC capacity and will generate 4.28 million kWh of clean power for the facility each year, representing approximately 50% of the facility’s total electricity needs.

The company’s supply chain team partnered with Affordable Solar on the installation with support from Southern California Edison and the City of Paramount.

Read full article from Energy Manager Today

Fresno Unified School District and ForeFront Power commence construction of 8.2 MW solar-plus-storage portfolio across 8 sites

ForeFront Power and Fresno Unified School District (“Fresno USD”) are thrilled to announce the groundbreaking of 8.2 megawatts (MW) of solar parking canopy systems across 8 District facilities. The portfolio of projects, which includes intelligent energy storage solutions provided by Stem Inc., is expected to save Fresno USD over $27 million over 20 years.

Fresno USD partnered with ForeFront Power after a rigorously competitive solicitation. In Fall 2017, School Project for Utility Rate Reduction (SPURR) and Fresno USD conducted a statewide request for proposal process to select the best solar and energy storage provider. The comprehensive procurement process through SPURR enabled the District to save considerable time, money, and resources in their procurement process.

Construction of the solar canopy systems is underway at Bullard, Fresno, Roosevelt, and McLane High Schools with the remaining four sites (Edison, Hoover, and Sunnyside High Schools and Service Center) breaking ground in the coming weeks. These 8 solar projects are expected to offset the equivalent of 10,633 tons of carbon dioxide avoidance annually or 2,000 cars taken off the road for the first year of production.

Read full press release from ForeFront Power

California’s Distributed Energy Future

GTM Research has established itself as the premier source of information on solar industry trends and developments in the United States. It’s instructive that from that perspective, they chose to organize a conference focusing on a single state, California.

We who participate in the solar industry here have recognized the state as a leader, but the less patronizing among us also recognize that the magnitude of this lead is only temporary. If solar is to realize its potential as one means of reducing environmental damage while reducing future customer utility costs, then other parts of the United States need to catch up (and as GTM’s latest data for 2015 shows, they are).

Nonetheless, as GTM Research Senior Vice President Shayle Kann observed in his opening keynote at GTM’s California Distributed Energy Future conference in San Francisco, California remains the epicenter of next generation distributed energy (DE) regulation and is at the forefront of the shift toward distributed energy in the U.S. And (I would add) what happens in California doesn’t always stay in California. Hence the conference to examine California’s transition to a distributed energy future and consider what’s working and what isn’t.

The discussions at the conference covered a variety of issues confronting the state. Here is an overview of the key themes coming out of the discussions, and the insights shared by the different speakers:

The strongest and most frequently recurring theme was that of the interaction of Distributed Energy Resources (DERs, essentially distributed solar PV) and the electrical grid. This issue has numerous dimensions, and subsequent “fireside chats” helped highlight some of these.

Appropriately the first discussion was with a Senior Vice President from Pacific Gas & Electric (PG&E), California’s largest investor-owned utility (IOU) and the utility with more connected PV capacity than any other in the United States. Issues were fairly raised: e.g., how should rates be structured to fairly compensate the value of Grid access received by the customer, how does PG&E envision an environment of growing Community Choice Aggregation (CCA) systems and how is the Grid managed for reliability. Unfortunately, the moderator for this session let the PG&E representative off with the stock, PR answers: “we have to make changes in our rate structures”, “they can work, note how long Marin (Clean Energy, 2010) and Sonoma (Clean Power, 2014) have been in service”, and “we need to build in robustness.”

Ah well, at least subsequent chats returned to DER issues in more depth. DERs can lower costs for Grid operators / managers; experiments were cited by both Southern California Edison (SCE) and San Diego Gas & Electric (SDG&E) involving combinations of storage and DERs. Time of Use (TOU) pricing is coming, and 150 studies worldwide on this issue indicate that customers like this. But there is just too little experience with California’s residential customers while the customers themselves have too little information on which to make decisions as to costs versus savings.

Questions were also raised about Grid planning, to which respondents appeared to agree that too much is moving to identify a “right” strategy, especially as there isn’t even agreement on how to weigh technical issues such as reliability against other social goals we “should” be pursuing. The underlying complexity raised by these superficially straightforward questions was well-highlighted.

Michael Picker, President of the California Public Utility Commission (CPUC) noted that despite all the issues the CPUC addresses, DE issues are of significant importance. CPUC needs to consider even the framework for its decision making processes going forward. A system designed to regulate railroads in the 1890’s may not provide the responsiveness and flexibility for regulating changes to utilities in a rapidly evolving technological, economic and social environment. The “adversarial” approach used in CPUC proceedings may not be the best approach—why is the current process more dependent on legal skills than on engineering skills? The desire is to move forward not too fast, not too slow in opening the market to competition while allowing utilities to remain viable business entities. These are issues that could keep one up at night.

Michael Picker (CPUC, left) and Shayle Kann (GTM, right) during their “Fireside Chat”

GTM California's Distributed Energy Future Conference

The second, albeit lesser, recurring theme I heard at the conference was that of CCA developments. Until this year, there have been only three of these organized in California: Marin (with subsequent geographic extensions) and Sonoma were cited above, and Lancaster Choice Energy was launched in 2015. San Francisco’s Clean Power SF, Silicon Valley Clean Energy and Peninsula Clean Energy (San Mateo County) are in the process of launching this year.

As Mark Ferron, CAISO Board of Governors, cited, in 5 years 60% of the state’s eligible population could potentially be served by CCA’s if all programs now in discussion came to completion in that time. He provided a link in later discussion which I repeat here for those who want to follow up on the tally he reported: climateprotection.tumblr.com/tagged/Community-Choice

CCA’s make solar available to those in multi-family dwellings or who own a home not situated with a solar-favorable orientation or location. Expansion of solar power to these customers is required if solar-based power is to expand. Yet as Michael Picker observed, CCA “forced collectivization is a coup against the traditional utility model, challenging utilities and eroding the role of the PUC.” We don’t know yet where this takes existing suppliers and industry participants.

The challenges of the new, evolving energy infrastructure are actively being addressed by the states of California and New York. Conferences such as this provide an excellent opportunity to reflect on the issues and the difficulty this transition poses for firms competing in the market, regulators and the state legislatures who will eventually need to rewrite the rules for structuring state energy markets.

Yikes! Is California’s interest in Solar Energy Collapsing?

GTM Research and the Solar Energy Industries Association (SEIA) released their US Solar Market Insight 2015 Year in Review on Wednesday, March 9. We’ve been tracking their PV capacity reports for the past several years, and in the figure below we plot the 2015 capacity increases reported in their Executive Summary.

While there was strong national growth in installation capacity this past year, California’s capacity additions were less than in 2014. After a couple years of providing over half the annual capacity additions in the country (57% last year), California’s share has fallen to a mere 45%.

 Annual PV Installations: California and U.S. Total (2010-2015)

Annual PV Installations: California & U.S. Total (2010-2015)

We picked ourselves up off the floor and asked “What is happening; is this for real?” So we called GTM Research and checked other sources to find out what in the world was going on. Turns out that despite the disastrous looking change, solar growth in California remains alive and well.
Turns out the primary reason for the downturn is a sharp decline in Utility-scale PV projects. According to GTM, these additions fell to the vicinity of 1800 MW last year. [I wish we could afford the $2000 – $6000 for the full report that our SEIA Membership entitles us to so that we could access all the GTM data. But we live in lean times and use information from diverse public sources such as US Energy Information Agency (EIA) and California Energy Commission (CEC) as well as GTM’s summaries to inform our understanding.]

According to EIA information published in late February, it appears that Utility-scale solar PV expanded by 2000 MW in 2014, but only 1100 MW (preliminary) in 2015. Data from diverse sources rarely match-up year-to-year, but the trends are identical—California’s utility-scale PV installations experienced a sharp reduction in 2015.

After checking the CEC’s most recent Tracking Progress, Renewable Energy-Overview, we can see why—the utility industry is ahead of target for meeting the state’s 2016 Renewable Portfolio Standard (RPS) 25% goal. The industry achieved almost 25% renewables in 2014! The state added approximately 4000 MW of utility scale PV capacity between 2013 and 2015. Utilities are meeting their target early; the apparent slowdown is a temporary pause while utilities work on the installations that will get the state to 33% renewable electricity by 2020.

Distributed generation activity remains strong in California, both in the Residential and Non-Residential segments. The state’s residential customers generated demand for approximately 1000 MW of installations—almost half the national total of 2100 MW. And other distributed generation customers (eg, commercial rooftops) account for about another 300 MW.

So for the first time in years, California’s share of new solar PV installation is now less than half the national total. Good news! The rest of the country is waking up to the benefits of solar energy with capacity increasing in numerous states. The Utility sector is leading this expansion, while the residential sector growth is accelerating. We’re pleased to see this expansion.

A Trifecta for Solar Energy and Distributed Generation

We all have good weeks and bad weeks. For proponents of Solar Energy (and all other inhabitants of our planet) this has been an historic week, with major achievements at the International, National and California-state levels. Setbacks will be inevitable, but the events of this week will have memorable and lasting impact.

The first and International achievement was the December 12 Agreement of 188 countries at the United Nations Conference on Climate Change in Paris to take measureable actions with the eventual goal of keeping global temperature rise to less than 2ᵒ Celsius (3.6ᵒ Fahrenheit) by 2050 compared with pre-industrial levels. As we have repeatedly been informed, this is the level estimated by numerous scientists to avoid the worst affects of atmospheric warming and ocean rise.

Though yet to be ratified (a process that starts in April 2016), the agreement commits those countries that do ratify the agreement to establish national emission targets and report on progress every 5 years. While the agreement calls for zero net anthropogenic greenhouse gas emissions to be reached during the second half of the 21st century, lowering the target would (according to some scientists) move this goal forward to the 2030 – 2050 timeframe. Either way, implementation of this agreement puts pressure on countries to support low- and non-carbon energy sources, solar very much included, accelerating their deployment and continued improvements.

The second and national achievement has not been enacted as this is written, but is the tentative agreement by Republican and Democratic House party leaders incorporated into the Appropriations bill that would extend tax credits for solar and wind projects from the current end-2016 expiration date through 2021. The agreement was the result of a compromise where-in Democratic Representatives would support eliminating the ban on US oil exports in exchange for Republican support for the Tax Credit extension.

While the vote can still go awry, a senior analyst at GTM Research (who closely follows the Solar market and industry) commented “the extension to the federal ITC is without question a game-changer for U.S. solar’s growth trajectory. Between now and 2020, the U.S. solar market is poised to see a number of new geographies open up with a 30% ITC, within both distributed and utility-scale solar.”

Finally, the third and California state achievement was the December 15 proposed ruling by the California Public Utilities Commission (CPUC) to leave in place most of the charges and fees now in place between the state’s major investor-owned utilities (Pacific Gas & Electric, Southern California Edison and San Diego Gas & Electric) and customers who have installed residential and commercial PV systems. Though yet to be finalized (in January 2016), the proposed ruling leaves in place most of the terms that allow customers with PV systems to recoup their investments in a timely manner thereby increasing the desirability of these systems.

Challenges to PV-favorable net metering terms and (lack of) other fees have been raised in many states, and regulator decisions have been mixed. The proposed CPUC ruling is perhaps the strongest pushback by any state regulator to utility claims of the high costs distributed PV systems impose on other (non-PV owning) rate payers. While new costs are proposed, and some uncertainty is introduced by requiring PV-system owners to be placed on Time-of-Use rates (with unknown impact on their bills), the proposed ruling is seen as leaving the business environment favorable for continued expansion of distributed generation.

For now the sun shines on distributed generation and the growth of solar-sourced clean energy. Let us hope that all three events help realize solar’s potential contribution to our future energy mix for the sake of maintaining our habitable planet.