Categories: All About Solar Power, Electric Cars that Run on Sun, Energy Efficiency, Energy Storage, Safety

09/26/16

  10:51:00 am, by Laurel Hamilton, Projects Coordinator, Run on Sun   , 1615 words  
Categories: All About Solar Power

Solar Power International 2016: Industry Latest and Greatest

Every September we pack our bags and head to the largest solar conference and exposition in the country; Solar Power International. This is when we get to connect with the broader solar community, advocates, and friends working far and wide for the betterment of the world through distributed clean energy. It is also the time when manufacturers unveil their latest technologies. These technology improvements come fast and furious in an attempt to stay ahead of the curve in a competitive industry. Just two years ago when I started working with Run on Sun we were able to get 270 watt panels from LG. What is coming from them in the next year will blow your mind. Here is my run down of the top take aways from SPI 2016…

 

Panel: “Survival of the Fittest, the Future of Residential Solar”

Some of you may have seen the three part series Run on Sun’s CEO, Jim Jenal, wrote recently about what we need to do to be sustainable as an industry facing a crisis of increasingly shoddy workmanship and shady business practices. As part of the convention’s educational program, Jim was invited to participate on a panel of solar professionals to discuss the future of residential solar. The panel consisted of a wide range of backgrounds including a representative from a national company, SunRun’s Michael Grass, Rick Luna from a municipal utility CPS Energy, Ed Murray from a medium sized company, Aztec Solar, as well as national advocacy group SEIA, and Jim representing the small installer at Run on Sun. 

The panelists discussed their take on who will dominate the residential solar space and what will the predominant business model be in five years. This was a perfect platform to raise the very real issues of quality facing the industry and Jim did not disappoint! Of course SunRun’s Grasso asserted that national scale companies continuing the leasing model with storage will dominate in the future. But there were many nods of agreement in the audience when Jim insisted that the current status quo is not sustainable. Giant publicly traded national companies operating in the red and pushing customers into bad deals are going to cause a backlash. We’ve already seen many law suits and bankruptcies in the industry. Solar City’s Better Business Bureau rating in the Bay area is an embarrassing 80% negative. The notion that Ed Murray, from SEIA, put forth that the market will naturally take care of the bad companies is just not a sustainable way forward or an ethical one. As more and more consumers get hit with bad contracts and solar systems, the market will be left with a bad taste for solar. The people in this industry who are doing it for the right reasons, aiming to help people save money and reduce their impact on the ecosystem need to demand that there is more oversight over the quality of systems and some legal standards around contracts.

Jim’s comments seemed to be well received in the audience as most people attending were people who work in solar for the right reasons given they are investing in the hefty price-tag to attend the convention. But the disparate opinions on the panel itself was interesting to say the least. I don’t know if the reps for big companies are just out of touch with what is happening on the ground or if they are in denial. 

Everyone agreed that a future will include storage or other bundled options for improving home efficiencies. However, Jim noted that storage needs to be presented to clients in a transparent way so they understand the true value of storage and whether it makes sense for them or not. If you are on a tiered rate system with no demand charges there likely is no value in storage. Solar stakeholders from advocates to installers need be fostering business practices that focus on transparent education for consumers instead of just closing every sell if we are to survive as an industry and continue to grow solar as the incredibly valuable resource that it is. 

 

LG Solar Panels Up the Ante 

We have been installing exclusively LG panels since 2012. Why? We believe LG panels are the best for our clients for two main reasons. 1. As a diversified company we, and our clients, can rely upon them to stick around to back their 25 year warranty no matter what happens in the wider solar industry. And 2. LG has an incredible R&D department churning out ground-breaking improvements keeping them at the top in both quality and output year after year. 

Last year LG announced 320 watt panels would be coming and we were fortunate to be one of the first to install these at a beautiful home in Altadena last Spring. This year they have several incredible new announcements:

  1. LG 355 Black on BlackNeon R Panels: This latest generation of LG panels has incorporated rear contacts, so no wire lines showing on the front of the panel. They displayed an impressive 365 watt panel slated to be released in Q1 of 2017! The “R” will also be available with a black backsheet and a 355 watt output capability. With rear contacts and a black backsheet the panel has a seamless sleek look like no other! (see pic)
  2. AC Modules: LG is partnering with Enphase Energy to incorporate Enphase’s newest generation of microinverter into the panel itself, creating an AC solar panel. Panels convert sunlight into direct current (DC), then that current must be converted into alternating current (AC) using an inverter. With the inverter directly on the panel, this will simplify things on the roof a great deal. As the majority of our projects are with Enphase microinverters and LG panels, this is a match made in heaven!  
  3. Bi-Facial Panels: Bi-facial panels have no back sheet, allowing reflected light to hit the panel from underneath when installed above a light surface adding to the output capacity of the panel. They had these on an impressive display showing up to 40% more output than a standard panel with a backsheet. There has been a limited market for bi-facial panels historically. Sometimes you see them on shade structures, but the price point is higher than standard panels. These new LG panels are in a commercial 72-cell format so they are aiming to capture commercial projects that can really bank that extra output capacity. 

 

Enphase Energy Total Rethink

Enphase MicroThe Enphase booth was seriously hoppin’ throughout the expo! Unsurprisingly with a total redesign of their system from the microinverter to the cable and even a special junction box.

  1. IQ 6 Micro:The new system, called IQ, includes the same microinverter guts with a new, double-insulated, polycarbonate case eliminating the need for a ground wire and cutting down significantly on weight and cost. The new IQ inverters will pair with a broader range of panels including 60-cell and 72-cell commercial panels as well as up to 400 watt panels.  
  2. Cable: The new cabling will be lighter and cheaper as well because they are carrying 2 wires compared to the current cable carrying 4 wires. They eliminated the need for a neutral for communications as they will now communicate on the same lines that the energy is transported. They also eliminated the need for a ground wire due to the new polycarbonate case.  
  3. Smart Junction: Lastly they rolled out a junction box wired up for easy installation between the string of panels and the run to the electrical service. 

All of these improvements come together to create a system that includes the microinverters we know and trust at a lower cost with a simpler and quicker installation. 

 

Everest Solar Racking Shares at SPI

EverestThe large majority of Run on Sun’s solar installations are being held together by the great racking products from Everest. This is because their materials are the most solid and well thought out racking product for standard pitched roofs on the market today. Their booth at SPI included a new “shared rail system” which allows two panels to come together on a single rail cutting down on the total number of rails needed for an installation. This system incorporates the same beefy product we trust with a reduced overall cost and installation time on the roof. It also doesn’t hurt that the entire team at Everest Solar Systems are great people and local to SoCal too! 

 

Edisun Dual Axis Tracker - PV Booster

Idealab tracker

Pasadena’s Idealab, an incubator, has been consulting with Jim on a revolutionary new product - the PV Booster - at their start up Edisun. They unveiled their dual axis tracker system at SPI. The system is designed for large flat roofs (and even carports) and potentially can increase output by up to 40% by tracking the sun throughout the day.

We were excited to see the system on display as they have developed quite a bit over the last six months of consulting with Jim. There was a lot of interest in the system at the show and we hope to help move their vision forward by installing some projects using their system locally here in Pasadena in the coming year. 

 

A Solar Wedding

SPIdoEvery year Run on Sun participates in Solar Fred’s Tweetup. It has become an event of close friends and allies. This year was a very special Tweetup as mainstays Pam Cargill and Martin Hamon got hitched in a truly extraordinary ceremony! Pam was walked down the “aisle” by a mascot Sun to the tune of “Here Comes the Sun". The ceremony included as many solar-love metaphors and quips as possible as Reverend Solar Fred officiated. Apologies for my blurry photo but it really was an event to remember. If you have pics to share with the happy couple you can share them on their dropbox here and relive the moment on Twitter with #SPIdo. 

09/09/16

  02:08:00 pm, by Laurel Hamilton, Projects Coordinator, Run on Sun   , 432 words  
Categories: All About Solar Power, Residential Solar

Run on Sun PSA: Time to Wash Your Array!

Here in SoCal we are blessed with endless warm sunny days. The down side however is that it can be many months between invaluable air-purifying rain showers. For your solar array, this means there is nothing to wash away the accumulated dust and detritus from nearby trees. In summer months ash from nearby mountain fires adds to the mix. Consider this a Run on Sun PSA…

ITS TIME TO RINSE OFF YOUR PANELS!! 

Dirty panels

These panels needed to be cleaned just to get the inverter to turn on!

(Didn’t help that the installer put the panels under a tree!)

When discussing solar with new clients often the topic of cleaning comes up. This is because some solar companies use the concept of cleaning your array as a way to convince you you need a leased system with ongoing maintenance. However, we believe this is a bit of a scam. You don’t need to pay someone to get up on your roof with a squeegie every week. Most home owners have the ability to douse dusty panels from the ground with a strong nozzle attached to a garden hose. Really the benefit is nominal unless it has been six months since the last rain, such as the case in Southern California. As for cleaning the panels, rinsing with a hose is fine (though some insist that is heresy and only deionized water should be used). Do it first thing in the morning so there is no thermal shock to the panels.

Check out this recent case study that brought this issue to our attention:

Clean Panels

Shiny new panels at Chandler School

Last week we heard from a client who did some great analysis using the Enphase monitoring on their system before and after he decided to clean his panels. He found there was an 8% improvement in the period after cleaning. Run on Sun’s CEO Jim Jenal compared this to the monitoring on another system (Westridge School) which wasn’t cleaned and had a similarly unshaded southern facing array. Over that time period Westridge School’s daily average production reduced 8.66%. This means that our client actually had an increase of production of 16.6% by cleaning his panels!

Generally, cleaning an array results in an improvement of between 5-10%, so his panels were exceptionally impaired by the fallout from our summer fires! Not surprisingly, given his location in the foothills of the San Gabriel Mountains. However, for anyone in the Los Angeles metro area, early September is a great time to get out and restore the shiny clean sheen to your array. After all, who knows when the first winter rain will come? 

09/02/16

  11:04:00 am, by Laurel Hamilton, Projects Coordinator, Run on Sun   , 631 words  
Categories: All About Solar Power, Solar News, Pasadena Solar, PWP, Energy Efficiency, Residential Solar

Variable Speed Pool Pumps = Huge Savings

Going solar isn’t the only thing you can do to reduce your electric bills and your environmental footprint. In fact, the first thing you should consider is how you could make your home more efficient BEFORE investing in solar. Investing in a solar system that is bigger than you really need is just a bad investment strategy since efficiency upgrades are often much more affordable than the solar system required to offset the ineficient loads. 

Pool with SolarOne option is to hire a professional to give you a thorough energy audit which will help to pinpoint where your electrical hogs are and what you can do to improve efficiencies. Alternatively, there are a lot of relatively simple steps you can take if you know what to look for. Changing out your old light bulbs to LEDs is an obvious and easy fix for example. But one of the biggest and often under the radar culprits that I’m here to tell you all about are pool pumps.

Pool pumps can have such a big effect on your electric bill that we always discuss it when doing a solar site evaluation at any home fortunate enough to have a pool. Of course we don’t recommend eliminating your pump altogether as they are necessary to keep your water filtered and clean. So what is the solution? There are all sorts of newer “efficient” pool pumps out there and likely your pool guy/girl will happily install if you say you’d like an upgrade. However, what you really need if you want to make a dent in your electrical load is something called a “variable speed” pool pump.

A variable speed pool pump is exactly what it sounds like… Rather than pumping water with a consistently high speed you really only need max power at the outset to get the water moving. Once its moving the variable speed pump then downgrades the output power to keep the water moving since less energy is required to keep something moving than to get something going from a standstill. This reduced speed equals reduced energy loads! 

We have heard clients who installed variable speed pumps have seen reductions on their bill on the order of over $500 per year!

The downside for these pumps is often the price is much higher than regular pumps. But I come bearing good news! Many utilities offer rebates and incentives for Energy Star qualified pool pumps. In our home turf of Pasadena, California we are fortunate to have a very proactive utility, Pasadena Water and Power, striving to help residents lower their footprint. They normally offer a rebate of $400-$450 off the sticker price for a variable speed pump. However, I was just notified that PWP is running a promotion on all of their energy efficient appliance rebates through October 31st, 2016: 

“PWP is offering a $900 (bought outside Pasadena) to $950 (bought locally) rebate to all PWP residential electric customers who replace their old pool pump with a new energy efficient variable speed or variable flow pool pump and motor. Replacing older inefficient pool pumps with new efficient models will not only help you reduce energy use but save you money. With the summer heat and the possibility of rolling blackouts, PWP wants to make sure you do your part to conserve energy." 

We couldn’t agree more! Check PWP’s rebates listing for a list of other rebates to take advantage of. The listed prices on the website include the current promotion. 

If you’re not in PWP’s service area, never fear! You can check if your utility has rebates on the Energy Star website

After you’ve addressed all the drafty windows, switched out your lightbulbs and upgraded all your appliances, then it is time to give Run on Sun a call (626-793-6025) and we’ll help you offset the rest of your energy needs!  

08/25/16

  05:48:00 pm, by Laurel Hamilton, Projects Coordinator, Run on Sun   , 657 words  
Categories: All About Solar Power, Ranting

Velvet Dallesandro - Electrician and Solar Jedi Master

I love conducting solar site assessments and having that first conversation with a potential client. Often we spend far more time discussing all the ins and outs of going solar with the property owner than is necessary for the solar assessment measurements. One of the questions we always spend some time on is: “How exactly is Run on Sun different than other solar companies?” Here in sunny Southern California this is an important question as there are so many people offering PV solar services. Of course I describe how the products we use are selected for their high quality, warranties, and trust in the manufacturers. I also explain how as a small company with a mission focus, we take a very honest and ethical approach to helping people green their energy. But one of the major ways we stand above all the rest is also a feature that is hard to convey in that first conversation. Hence, the theme of this blog post…

My best answer to the above question, “We have Velvet Dallesandro as our Chief Electrician.”

The work that Velvet does connecting the power of the sun to your electric meter is akin to an art form. But alas, the art of a solar electrician is often hidden behind dead plates and easy to overlook if you’re not paying attention. So here are a few examples of Velvet’s work. She may not be in a Los Angeles art gallery but her work is providing people with beautiful, safe, and emission-free energy across the county! 

 

Service panel

Disconnect

If you’ve ever looked behind the dead plate on your electric bus (where all your breakers are) you likely were frightened by what you saw. A mess of cables, cobwebs, and sometimes outright dangerous circumstances - like the time I saw one missing its main breaker entirely. However, if Velvet is re-wiring your service panel it may look more like something you could put on your wall with rainbows of color coded wires and perfect 90 degree bends. (Service panel shown at left by Velvet, solar AC disconnect work at right by Ralph Carillo.)

Chandler Conduit 

Wiring is far from Velvet’s only art form. How do installers bring solar power from the roof to the electrical service? While the most visually appealing is to hide the magic completely by going thru an attic space and inside walls but sometimes that just isn’t possible. 

conduit

Velvet doesn’t just throw flex conduit around willy nilly to get the job done quick like some installers. It takes a lot of creativity to make the wiring run as attractive as possible. First and foremost, she always uses galvanized conduit for outside wiring as opposed to flex - it lasts for the long run and it is much more difficult to punch a fire axe through than flex, making it much safer. Second, Velvet avoids piecing together conduit as much as possible. Her goal is to make whatever crazy runs are necessary as seamless as possible - think avoiding possible leaky weak spots at seams. This means she has become a jedi master at bending conduit. Eight bends in one stick of conduit paralleling windows, gutters, or that pretty bush you don’t want to disturb? Not out of the question when Velvet is on the job (or her prodigy apprentice Ralph for that matter). 

 

Beyond the art she’s also an all around rock star. Check out this classic; pulling wire for a 45kW job at Chandler School…(That’s her on the right pulling wire through at least 30 feet of conduit on a 100+ degree summer day.)

Pulling her weight

She more than pulls her weight! So if you’re looking into going solar take note, there is an art that goes into the details. And the details really do count! Velvet’s wiring is the safest you will find and truly built to last. A rarity in an industry where most companies are trying to race through projects at lightning speed. Bottom line…we are so thankful to have Velvet on our team!

Velvet

07/30/16

  08:33:00 am, by Laurel Hamilton, Projects Coordinator, Run on Sun   , 428 words  
Categories: All About Solar Power

2016 Top 500 Solar Contractors: Still on Top!

Solar Power World Top 500 ContractorsIt’s the time of year again when we hold our breath and hope to be included in the Solar Power World Top 500 Solar Contractors list. As more and more companies come into the solar sector it becomes more and more of a real honor to be included in this prestigious list of the best in the industry.

Run on Sun made the cut!

We’d like to thank our friends at Solar Power World for the valuable work they do delivering well-rounded information on the solar industry to the wider public. They also provide a very important service helping our solar community to share information, best practices, and continue to thrive and grow. This is our fourth year running on the list which has been published for the last five years.

Beyond the Top 500 list, Solar Power World also gathered some data about the industry as a whole through their annual survey. Some interesting facts from the results include:

  • Solar continues to provide valuable jobs: Top Solar Contractors employed 133,707 people in 2015, up from 124,967 in 2014.
  • Residential markets provide most solar jobs: 287 contractors worked primarily in the residential market; 154 worked primarily in the commercial market
  • California continues to lead: 130 companies were headquartered in California
  • Many companies are investing in rigorous solar education: 355 companies had at least one NABCEP-certified principal on staff. (Run on Sun is proud to have all principals NABCEP certified)
  • Most solar companies are local businesses: 77% of companies reported doing most of their business within its state of headquarters
  • Many solar companies are small businesses! 119 contractors reported have 10 or fewer employees; 236 reported having between 11 and 50

While the majority of solar electricity is produced at large utility-scale solar power plants, the majority of jobs are actually located with local small to medium sized companies that service residential and commercial clients. 

“No one can deny that local companies are supporting the growth of the industry. Our Top Solar Contractors are the face of the industry—meeting homeowners and business leaders on doorsteps every day.” - Kathie Zipp, Managing Editor Solar Power World

When you support solar, you not only benefit the environment but with many solar contractors you are also supporting small local businesses that provide jobs and put money back into our local economies. It’s nice to know Run on Sun is in good company and that we have great people like the team at Solar Power World backing our efforts to build a clean-energy future for all. Congratulations to all the top 500 solar contractors of 2016! 

Run on Sun having fun at SPW's Intersolar Booth

Run on Sun’s Laurel Hamilton and Josh Sanchez enjoy the Solar Power World booth at Intersolar 2015

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Jim Jenal is the Founder & CEO of Run on Sun, Pasadena's premier installer and integrator of top-of-the-line solar power installations.
Laurel Hamilton is Run on Sun's Projects Coordinator, and together they author this blog.
Run on Sun also offers solar consulting services, working with consumers, utilities, and municipalities to help them make solar power affordable and reliable.

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