Category: Solar Projects

Install of the Month – June 2016

Install of the Month – June 2016

Greetings Solar Fans, and welcome to the Wholesale Solar’s Install of the Month for June 2016. This incredible install is brought to you from the great state of Massachusetts. With the generous net metering policy, Solar Renewable Energy Credit incentive program, and 30% federal tax discount, Seth certainly installed at the right time!

Seth F purchased a 11.88kW Suniva/SolarEdge System utilizing 36 of the Suniva 330 Watt panels and one 11.4kW SolarEdge Inverter. (We’ve since modified that system to be an 13.6 kW Grid‑Tied Solar System with SolarEdge and 40x Suniva 340 Watt Panels) Although it’s simpler for us, and easier for you to use one of pre-packaged complete solar systems we can easily modify them to meet whatever roofing limitations, HOA requirements or permit requirements you might have.

The solar tech that helped Seth F put together his system was our very own Jeremy A. He reassured Seth that even though he was going on vacation before the install, Seth had the entire Wholesale Solar team behind him and we would be there for any questions or support he needed. They went over a number of different systems and what Seth’s requirements were and the system that was purchased was actually Jeremy’s first suggestion to the customer (What can we say, we know what we’re talking about!). Knowing that this is one of the highest value systems that we keep in stock he also knew that we have a ton of successful installs for the system under our belt and would be able to help Seth in any way he needed.

Even though it took more than a year to work out the details and ship the system to the customer, Jeremy said Seth was a real pleasure to work with and enjoyed how Seth was always looking forward to the next step.

Components In Seth F’s System

Interview with Seth F

How long was the full installation process from receiving your equipment to flipping the switch? How many people did it take?

The actual physical install took me (and two good friends) basically two weekends, with bits an bops during the week. After the install, the inspections and the meter swap took about two more weeks. The permitting and state approval took the most time, about 2 months. [Editorial: bet he wishes he’d gotten the SolarPro Pack to help with permitting!] I had two friends help me one at a time. I sat on the equipment for two months before actually starting the install.

Did you have any previous construction experience?

No professional construction experience but I’m a Ship’s Engineer by trade so I can figure most things out and I’m decent with my hands.

What was the most confusing or difficult part of the installation?

Installing the mounts and securing the panels so they were level and square.

Were there any unforeseen additional parts or tools you needed?

The electrical inspector pinged us on the labels. I had to order a much larger label kit. I purchased a pvc conduit bender to make it look clean. [Editorial: We recommend PVlabels.com for your one stop shop for labels, stickers and placards.]

How/Why did you choose to self-install?

Much cheaper than hiring someone to do it

What was your primary reason for adding solar to your home?

To reduce my electric bill and carbon foot print


Congratulations Seth on the successful install and incredible home from all of us here at Wholesale Solar!

Install of the Month – April 2016

Install of the Month – April 2016

Wholesale Solar sales technician Leslie B said Craig W. had really done his homework and came to her extremely informed, knowing exactly what inverter system and size panel array he wanted which really streamlined the process. One of the few sticking points in an otherwise smooth process was getting his install approved by his HOA, but once that was accomplished the project moved very quickly, so if you are thinking of installing a PV System of your own and belong to an HOA, make sure you have that as part of your checklist!

  • 5 yr. ROI
  • Saved nearly $10k by going DIY!
  • Total installed cost $17k to cover his entire energy usage

Components In Craig W’s System

7.68 kW Grid‑Tied Solar System with SolarEdge and 24x SolarWorld 320 Panels (complete system)

SolarEdge SE7600A-US Inverter 

SolarWorld SW320 XL Silver Mono Solar Panel (Wholesale Solar has since upgraded our systems to SolarWorld SW325 XL Silver Mono Solar Panel)

A SolarEdge inverter is really the best option for large 72-cell panels like the SW320s. SolarEdge can work with high power modules and unlike a micro-inverter it won’t limit the power output from each panel. Large panels are popular because the cost is lower and there is less equipment to mount — fewer panels, less racking and fewer attachments to the roof top.

Interview with Craig W

He’s been interested in solar technology since 1981 when he solicited a bid for a solar system for his first home. The 23 year payback at the time was a no go.  [editorial note: The cost of solar has fallen from nearly $30/watt in 1981 to less then 70 cents today! His current ROI will be around 5 yrs.]

How long was the full installation process from receiving your equipment to flipping the switch?

Four bids and 35 years later, with the help and advice from Wholesale Solar I finally have a system designed for Net Zero metering with a little extra for expansion (maybe an electric car charger, electric hot water on demand, or even second fridge in the garage?!) System specs: 7.8kW/ 24 Solar World Panels ,24 Optimizers and 1 Solar Edge 7600 Inverter

How many people did it take?

Once I decided to go forward with the project as a D.I.Y., I hired a consultant who provided me with a total of two hours of answered questions, spread over a month, to learn about the equipment and the terminology. Then it was time to go shopping. When I discovered Wholesale Solar’s numerous packages, competitive pricing and a treasure trove of educational material, it was considerably easier to choose a Complete Grid-tied system that fit our electrical needs and our budget (investment.) The numbers: based on current electrical charges of approx. $2,400 a year  ( PG&E ) and utilizing the Federal tax credit, the return on investment ( ROI ) will be 5 years or less.  For a total cost of  under $17,000.00 for the system (incl. labor, materials and permits) which was nearly $10,000 less than his lowest bid for purchasing elsewhere!! [editorial note: try our Solar Cost Calculator for yourself!] I  put together a homeowner application for the required County permits and had no problems submitting my file. I got the job site permits that same day.

Did you have any previous construction experience?

I  hired two referred, experienced installers who took on our home as a side job. My son Gavin, newly certified as an installer, joined in and  myself with many years of construction experience, and together we made up a perfect team. We installed the system as designed over a three day weekend as planned, like any professional crew. It was an exciting and worthwhile endeavor in every respect!

I spent a few hundred getting some trees cut back, eliminating morning and afternoon shadows, maximizing the efficiency of the array by another 10% and I was ready to go…..

That left only a final submission of paperwork to the county and PG&E for final permits and permissions as well as an application to my HOA, for a thumbs up on a request for a variance.. (granted). After that it was only a week before PTO (permission to operate) was given, and I was at long last, a micro utility!

Finally thrilled to be part of the solution and most of my appreciation goes to Leslie Benton, with an added assist from Cheyenne and Geri. You all provided excellent customer care and support, displayed unlimited patience for a demanding customer and helped my wife and I complete our last big home improvement project. Thanks for everything Wholesale Solar!

Solar Plane Ready to Resume Round-the-World Flight

Solar Plane Ready to Resume Round-the-World Flight

The Solar Impulse 2 is ready to resume her round-the-world flight after wintering over in Hawaii. Late in 2015, after completing a record 117 hours of continuous flight, the solar-powered airplane was forced to land in Hawaii for emergency maintenance on its battery bank.

A new cooling system was installed and a few test flights later, the Solar Impulse is ready to take to the sunny skies again the next time weather allows. Last year, it took 8 months to complete the first half of her journey from Abu Dhabi west through the Mediterranean, across the Atlantic, over the Americas and halfway over the Pacific. The next part of her journey is over the rest of the ocean, across Asia, and back to Abu Dhabi in the United Arab Emirates.

For more about the update, see the Solar Impulse Blog entry: Solar Impulse re-enters “Mission Mode”. Or learn more about this solar-powered round-the-world journey on the Solar Impulse website.

Installation of the Month – October 2015

Installation of the Month – October 2015

Interview with Dennis R.

How long was the full installation process from receiving your equipment to flipping the switch?
The equipment shipped about the end of July and I had to do some research to determine the proper roof installation (i.e., how the rails were to be installed, distances between rails, installation of the trunk line, etc.). I have never even seen this type of equipment, much less installed it, so when it arrived, I had to inventory it, read the installation instructions, then determine the best layout.

Read More Read More

Introducing Our Customer Installation of the Month

Introducing Our Customer Installation of the Month

 

Submit your installation photos for a chance to be featured.

Installation Of The Month

Starting in March 2015, Wholesale Solar will be selecting one of our awesome customers per month to feature in our Installation of the Month. We are constantly amazed by the installation photos we receive from customers, so in order to show off some of your beautiful systems, we are going to highlight one every month on our website, blog and newsletter!

Whether you have installed two panels or two hundred, send us some pictures of your work-in-progress or completed system and it could be featured. In return for taking the extra time to help inspire future Do-It-Yourselfers, we’ll be sure to send the Installation Of The Month winner some Wholesale Solar goodies.

For extra inspiration, look at some of the systems in our customer gallery.

Want to participate? Send a few photos and a brief description about your project to [email protected]. Even if you’re not selected for the Installation of the Month, we’d love to add you to our Wholesale Solar customer gallery so you can show your new system off to all your friends!

Last Chance for the 2011 30% Federal Solar Tax Credit

Last Chance for the 2011 30% Federal Solar Tax Credit

Gridtied SystemIf you buy a solar power center before the end of the year, your equipment and installation costs will qualify for the 2011 Federal Tax Credit.

What types of systems qualify for 30% Federal Tax Credit?

What do I need to know about the 30% Federal Tax Credit?

 

Solyndra, Innovators or Crooks?

Solyndra, Innovators or Crooks?

Solyndra had a great idea. They developed solar technology that promised to be cheaper than silicon. The Department of Energy believed in the venture enough to loan $500 millions dollars of Recovery Act funding. Private investors put their money down, too. They didn’t foresee that the cost of silicon would drop sharply and that China would ramp up and produce super low-cost silicon PV.  And, of course, they didn’t foresee that they would go bankrupt.

Piggy Bank
Is Solyndra a prime example of the government wasting our tax dollars?

Is Solyndra a prime example of government wasting your tax dollars on renewable energy?  Many folks have been making this claim. But do they know that Solyndra is only a tiny fraction of Department of Energy’s green-energy loan program, and that it is the only DOE loan to default so far? Solyndra’s loan guarantees are also infinitesimal compared to those of both fossil fuel and nuclear companies. Investigations reveal that there was no real scandal in the loan process. It’s also normal to have a certain fraction of speculative programs like this fail.

What happened with Solyndra actually points to positive change. Competition in solar technology has become so fierce that we are fast fowarding to the day when the cost of solar power will equal the cost of electricity from our utility company.

There is a lot of talk lately about Moore’s Law in regards to solar. In the computer technology field, Moore’s law says that the number of components that can be placed on a chip doubles every 18 months. According to Scientific American, if Moore’s Law were applied to solar power technology, we would eventually have the solar equivalent of an iPhone—very cheap, mass produced energy technology many times more effective than the giant and centralized technologies it was came from.Solar PV Cost per Kwh

Over the span of thirty years, the cost of solar cells has reduced 7 percent each year on average. If this continues, the cost of solar will be just over 50 cents  per watt in 20 years. PV modules historically have been about half the installed cost of a solar power system. With the cost of installation falling at the same rate as solar panels, the cost of solar in the U.S. will cross the current average retail electricity price of 12 cents per kilowatt hour in 2020. In fact, given that electricity prices are currently rising a small fraction per year, prices will probably cross earlier, around 2018 for the country as a whole, and as early as 2015 for the sunniest parts of America. Read more.

Solyndra was blindsided by a field that’s growing exponentially.  It’s clear to us now that solar power is here to stay.

The Effect of Shade on Solar Panels

The Effect of Shade on Solar Panels

Just a little shade can affect a solar panel ‘s power output dramatically. Diffuse shade from a “soft” source, like a distant tree branch or cloud can significantly reduce the amount of light reaching a solar panel’s cells. “Hard” sources stop light from reaching solar cells, such as debri or bird dropping sitting on top of the panel. If even one full cell is hard shaded, the voltage of a solar panel drops to half in order to protect itself. If enough cells are hard shaded, the module will not convert any energy and will, in fact, become a significant drain of energy on the entire system over time.

Partial Shading of Cells on a Solar Panel
Partial cell shading that reduce solar panel power by half.

Partial shading of even one cell on a 36-cell solar panel will reduce its power output. Because all cells are connected in a series string, the weakest cell will bring the others down to its reduced power level. Therefore, whether half of one cell is shaded, or half a row of cells is shaded, the power decrease will be the same and proportional to the percentage of area shaded, in this case 50 percent.

When a full cell is shaded, it can use energy produced by the remainder of the cells, and trigger the solar panel to protect itself. The solar panel will route the power around that series string. If even one full cell in a series string is shaded, as seen on the right, it will most likely cause the module to reduce its power level to half of its full available value. If a row of cells at the bottom of a solar panel is fully shaded, the power output may drop to zero. The best way to avoid a drop in output power is to avoid shading whenever possible.

A solar panel affects an array in much the same way a single cell affects a solar panel. In a centralized inverter system, where panels are strung in series, if only one of the solar panels is shaded in an array, the rest of the solar panels’ output diminishes.

When choosing a grid tie solar power system for their home or business, folks often prefer the tried and true technology of a centralized inverter systems. And the price tag on these is pretty good. When you consider the effects of shading, however, it’s easy to understand how microinverter and SolarEdge systems have become so popular.

While using different technologies, both SolarEdge and Microinverter systems allow each solar panel in an array to maximize power output independently, thereby maximizing a system’s power generation. If one solar panel is shaded in either of these systems, the rest of the array’s panels can still operate at full capacity. (SolarEdge provides DC to DC power optimization for each solar panel, while microinverters provide DC to AC optimization at the module level.) Both of these systems allow solar panels to be facing different orientations giving you more design flexibility if part of your installation site is in the shade. A centralized inverter system requires panels to facing the same direction.

Read more about SolarEdge, Enphase Microinverter and Centralized Inverter Systems.

 

61 Percent of Americans are Unaware of Financial Incentives for Going Green

61 Percent of Americans are Unaware of Financial Incentives for Going Green

LIghtbulb with TreeWorking in the solar industry, it’s easy to assume that folks are already aware of all of the financial incentives out there to “Go Green”. We do our best to educate people, but a recent survey reveals that 61 percent of Americans are unaware of such rebates!! 50 percent of the surveyors said they had made home improvements to save energy and money, and 71 percent said they didn’t take advantage of rebates, tax holidays or other incentives according to the survey, conducted by Harris Interactive on behalf of climate technologies supplier Emerson. There are actually 2,750 policies and programs for rebates and incentives across the United States.

Financial Incentives: Getting Ready to Invest in your Renewable Energy System
If you’re planning on investing in a solar power system, the first step is always to reduce your energy consumption. And with this first step, comes the first wave of financial incentives –whether it’s insulating your house, buying energy efficient windows, or buying more efficient appliances. Your reduced power bill will also translate in to a lowered price tag on your renewable energy system, when you’re ready to buy. Not only do you get to join forces in making the planet a better place, you also stand to gain financially… And  the incentives don’t stop here.

Gridtied House with Solar PanelsOnce You Have Invested in your Renewable Energy System
Once you have invested in your Solar Power System for your home or business, you’ll be eligible for the 30% Federal Tax Credit on the cost of the equipment, plus the labor to install it. This is on top of any state incentives, local and utility company rebates (in addition to the ones mentioned above), which vary widely across the states. Some states offer personal tax credits or property tax credits for the increase value of your house, others offer up front rebates, while still others offer funding based on how much energy your system produces. Most states offer net-metering, which means if you have a residential solar power system, your utility power will pay you for any excess power you generate. 

So, where do you find these rebates?
The DSIREUSA.org website. This database was founded by the U.S. Department of Energy in 1995 and is managed by the North Carolina Solar Center at North Carolina State University. Database users can search for eligible incentives in their area with the site’s search tool, which allows them to filter searches by state, specific technology, type of incentive and whether the incentive is for a home, business, school or government entity.

Financial incentives could literally pay for your entire system. So what are you waiting for? Start your incentive research now.

Read up on how to get started with solar here, or view our Grid-tied Solar Power Systems.

Texas…The Big Oil State is Big on Solar

Texas…The Big Oil State is Big on Solar

Solar Panel Installation in Galveston Texas When you think of Texas, you think of big oil, but did you know that Texas ranks 16th among the states for installed PV power? The nation’s largest consumer of energy is quickly becoming one of the nation’s leaders in solar. And, as the second largest state, Texas has plenty of room to expand, and plenty of sunshine to harness.

To boost the trend in solar, some Texans are lobbying to get a consistent state solar incentive program. Currently, residents can get various funding for their PV projects through their utility companies, and can combine these with the 30 Percent Federal Tax Credit and various property tax credits. Net metering programs are few and vary greatly among the utility companies.

Some utility solar incentive programs are fully subscribed to for 2011, but there are quite a few fantastic deals out there. Wholesale Solar is encouraging Texans to research their own utility companies to find out what is being offered. Go to Texas page on the Dsire Database of State Incentives, scroll down to the “Utility Rebate Program” to look up your utility company. If you find that rebates at your utility company are fully subscribed for 2011, keep this website bookmarked and keep informed of next year’s rebates.

There Are Some Great Rebates Worth Pursuing in Texas
El Paso Electric, Oncor, and Swepco are a few utility companies that have 2011 rebates still available as of September 2011. They offer $2.00 per watt rebate for residential projects and $1.75 per watt for non-residential, with exception of Oncor. Oncor offers $1.50 per watt for non-residential projects. Read more here.

San Antonio’s CPS Energy Solar Initiative Rebate Program offers their customers tiered incentives that range from $1.65 to $3.00 per watt, based on the calculated expected performance of the system. Solar projects get up to $200,000 of the total project cost on residential and commercial installations. Read more.

Austin Residents Get a Bonus Incentive Through the End of September
Austin Energy customers are now eligible for a temporary bonus incentive through the end of September. Increasing the $2.50 per watt rebate to $3.00 per watt. Systems must be installed by September 30, 2011, to be eligible for the $.50/Watt bonus. The yearly cap per household has been raised from $15,000 to $18,000. Read more.

Read more about Texas’s Solar Incentives here:

https://www.wholesalesolar.com/solarincentives/Texassolarpanels.html