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It’s been many sessions, but the Georgia state legislature has finally passed some groundbreaking solar legislation. The time is now ripe to get on board with solar in the state. Businesses can qualify for up to $500,000 in tax credits while homeowners can claim up to $10,500 for PV installations. Your equipment needs to be in service by 2012 to qualify. For more details, check out the Georgia solar energy page. This move by state officials has bumped Georgia’s legislator rating up from one sun to four!

Update 7/18/08: this article is way off base, check the bottom of this article for my update.
An email popped into my in box from a company called XeroCoat, or from XeroCoat’s PR company. I don’t mind the unsolicited emails at all if they are solar related, I expect that when people see that we are running a solar blog here that they will want us to take a peek at their products/services. I had no idea this company existed, and now I’m glad I do. Anyway, /endramble
XeroCoat is selling a simple product. You slap something on the top of your solar panels, and less light is reflected, and thus you get greater output. Sounds simple enough, right? First I checked out their technology page. Even though I have an electrical engineering degree from University of Illinois (“I!-L!-L!”…. I hope when I hit “Publish” I can hear the rest of it from my window), I’ve forgotten most of what I’ve learned since I stopped working as an engineer (If you stuck a three-dimensional integral in front of me now I’d just stare at it for a while and then go get a beer). However, this stuff vaguely makes sense to me. It’s similar technology, I think, to UV reflective coatings on sunglasses (although that technology is trying to pull off the opposite effect).

The point is that I could see this being cost effective if marketed directly to panel manufacturers who don’t have the time or production facilities to easily produce it and thus outsource to XeroCoat. However, I am skeptical of it making financial sense to current system owners. For example, I know that the panels that we sell at my company have buckets of R&D cash and have milked every kW they can out of their panels, so I would be surprised if this has not already been explored by them. However, it’s possible I’m grossly underestimating how difficult production of this stuff is, and that it’s just something only XeroCoat can do or has a patent on.
They are funded, they’re presenting at Intersolar, and a (very weaksauce) googling shows that their team definitely knows what they are talking about… But all that doesn’t matter at all, because this is one of the easiest damned things in the world to test.
1. Hook a panel up to a voltmeter
2. Measure
3. Put the XeroCoat stuff on, and quick, while the sun is still in the same place.
4. Measure.
5. Calculate those extra kWh’s produced per annum and figure out if it’s worth the cash or not (the only caveat being you would have to take their word on the stuff’s durability, which, admittedly, sounds pretty good: “Anti-reflective coatings must perform over the twenty-five year lifetime of your solar system. XeroCoat’s coating meets IEC 61215 module test standards and exceeds current industry standards for abrasion“).
I’ve asked XeroCoat to send me a freebee for a panel I have, and I’ll give it a go with testing if they play ball. Otherwise, does anyone else have experience with this product? If so I’d like to hear, just write a comment below.
Peace!
update 7/10/08: ”
Thank you for your interest. It’s great to know that you are a solar power advocate.
Testing our products in the field is a great idea. What we would like to do first, however, is to meet with you, tell you more about our product and then proceed to the next step.
How about discussing at our booth (No. 9648) at Intersolar next week? Also we have a little party on Wednesday as below, so please join.”
UPDATE 7/18/08:
So I met with the Xerocoat people at Intersolar. I was majorly off base on two topics.
1. It’s not super clear on their website, but they do openly admit it would not be cost effective to sell to the end user of an existing home solar system. Where I got confused, and what they are trying to get at is that they want the consumer to demand XeroCoat coating from their panel manufacturers, which makes perfect sense. That is why they have the “solar system owners” page to begin with.
2. It’s not something you can just slap on and test. It has to be applied at their facility, and it would require multiple panels for a legitimate test, and would require all day long testing, not just a flash, as XeroCoat increases morning and evening intake of power. Basically they are a fresh company but do offer a valuable product that panel manufacturers may be interested in using. Sorry for all the misconnunication in this article. XeroCoat is totally legit, but not something you can really order online for your existing home system.
They will provide data from a new test they are doing on 50 modules soon.

Update 3/3/2009 – One Block Off the Grid (1bog, not ibog), which organizes groups to get solar together, is working on turnkey solutions for solar on renters and landlords.
Invariably, when you see a solar array on a home, that house is owner occupied. Typically, when someone rents a home or an apartment, they pay for the electricity bill. That removes any incentive for the landlord to install solar.
If we want to open up a huge slice of pie for solar energy, this needs to change. For instance, about 40% of U.S. households rent their homes. There are about 130,000,000 households. So, we’re looking at an untapped market of roughly 52,000,000 homes! While this logistically isn’t easy, here are some of the big ways it could be possible:
1. Create a tenant/landlord relationship for solar so it becomes financially beneficial for both parties. We’re trying to pave the way for solar energy for renters here in San Francisco.
2. Put solar on a great big unshaded roof to power some of the neighbors with worse exposure.
3. Create incentives for people to install solar arrays larger than their power bill requires. This will require both a feed-in tariff (or some similar incentive) and upgrades to the grid infrastructure (if you have all the houses on the block generating more than they use, you’re gonna blow some transformers. We didn’t really build this grid thing to go both ways).
Anyway, I digress. Back to renters and landlords:
Solar energy, ironically, is way more lucrative for landlords than homeowners (at least until the end of the year). Why? The Federal Tax Credit for Solar Energy is capped for personal residences at $2000, but is uncapped if the property is an “investment” property. In addition, landlords can depreciate the value of the solar array over a shortened period of 5 years. Finally, landlords can take a 50% bonus depreciation for items purchased and placed in service during 08′ (the economic stimulus package). When you see this all on paper, it’s pretty mind blowing.
However, unless they’re into green charity, landlords are not going to put solar on their “business” unless they are saving money on energy somehow too. So, you need to be able to work that energy savings into the lease of the tenant, so that the tenant receives comparable or even cheaper energy costs with clean renewable energy instead of 100% grid power.
This requires a few ground breaking moves on the tenant law side. The tax law is pretty well covered, and we’ve gotten a recent opinion from a professional on this. In addition, I’ve sold a few systems to landowners with tenants recently, and some of them have some intelligent CPAs who have backed this up.
Surprisingly, with respect to the tenant/landlord lease arrangement side of things, we’re getting help from our utility, PG&E. They have offered some legal resources to help figure this out. They routinely surprise me with their facilitation of the solar industry. They understand that the future is distributed power generation. They’re not fighting it, they’re working with it. They are a unique utility.
So the bottom line is, if you rent and you want solar, talk to your landlord and have them contact a solar systems integrator. They may not have all the answers on this, but at least they can size a system correctly and you can present them with the documents in this post as well.
Also, of course, if you live in San Francisco and you rent or own investment property, I’ll be happy to answer your questions about solar and whether it works in your situation.
How much is the cost per square meter of a solar panel. I have a 25meter x 30meter area I intend to install solar panels. How will it cost me?”Panels vary in efficiency and price. Solar is typically sold by the watt, not the square foot. Vendors with higher efficiency panels can milk more power our of that area, but it will cost more.”I am having a difficult time finding a Solar Installer on the Northshore of Lake Ponchartrain? Can you recommend someone who services Washington & St. Tammany Parishes?”Louisiana is a little light on the solar installers but they are catching up. If you fill this out we’ll try to connect you with one.
“i have a 15 unit building in new york..can i use solar power to heat my building. my heats prices are putting me in the red”
Not really, but you can use solar-thermal to heat your hot water, and it is extremely cost effective, the payback on solar thermal is very quick and it’s not terribly expensive.
“I own four unit building in Florida. Do you have any solar power recommendations for small buildings like this? How can I make this a win-win for me and my tenants?”
The best way we can see to do it is to pinpoint how much money the system produces in electricity, and add that as a monthly fee to the lease. The tenant gets clean energy for a more stable costs without paying any more, and you get the giant tax benefits and get to recoup your investment. It’s win-win. You have to check with the PUC in your state to see if there are issues with “selling” power like this to tenants. Even the PUC here in San Francisco doesn’t have the answers to a lot of questions, and it’s ground zero here for solar innovation in the US… so, this is untreaded territory, but the financial benefits are pretty overwhelming while the 30% tax credits are still in place.
One Block of the Grid is a competition in San Francisco to see which district can get the most San Franciscans to commit to getting solar energy on their homes, and they officially launch today, on the heels of the San Francisco Solar Incentive Program’s passage yesterday.
The winning team will get heavily subsidized (possibly free) solar energy systems by a corporate sponsor, and the other teams still win because by going solar in the same area at the same time, the installer saves money and passes those savings onto the consumer.
It’s a great way to blast through the early adoption phase for solar energy here in San Francisco, which lags behinds it’s neighbors in solar installs, mostly because of its heavy density of renters (Although Tom Price and I are going to change that)
I hope to be performing some of 1BOG’s installations; and I’m excited that knowing from my personal experience, the visibility of interest (below) this provides is going to help these guys overcome the main hurdle to early adoption: skepticism. Note, it’s called 1BOG, not ibog.
::gmap(“blah”, “”)::

Here is the typical status quo for solar evaluations:
Jim Solar Considerer hears something about solar energy in the media. He contacts a local installer, who sends a salesperson out to climb on his roof. The salesperson takes down several measurements and requests electrical usage info from the customer. A week or so later the salesperson returns to discuss a system he has designed with the customer. Not only is this process slow and tedious, but the vast majority of people never make it to their phone in the first place. As far as the environment’s concerned, this ain’t gettin’ the job done.

Enter Dr. Barry Levine and his CS students at San Francisco State University. Their tool, dubbed www.solaropportunity.org, is an incredibly powerful, open source tool that can make solar explode in any city that utilizes it. Working with project originator Scott Wentworth with the City of Oakland, it will go something like this:
Oakland forks over access to its high resolution flyover photos (called GIS data). Interns at the city import the data into the tool and trace the roofs and obstructions like trees or chimneys. This could be done by anyone…. students, volunteers, even the homeowners themselves, they are even working on image recognition software to drastically reduce this labor requirement.
The roof data is crunched with Clean Power Estimator, one of the most reliable solar calculation programs out there. It then spits out how much solar you can get on the roof, and what the attached cost savings would be.
Finally, if solar works on your property, the City of Oakland automatically sends you a post card with all the financial benefits on it, coupled with some phone numbers of local installers.
And Pow! In one fell swoop, everyone in the entire city knows the impact solar energy would have on their own home. Not to mention that instead of being hit with occasional inserts in the weekly paper, they are getting something personalized and from the city itself with real useful data on it.
This is the future, my friends, and it’s here now.
The software is handed down from term to term and well-documented. The current version is usable, and Oakland citizens, hopefully, will start getting postcards later this year.
I began attending their meetings because I have, since day one, thought that solar/satellite photo synergy is the place to be. CH2MHILL and Sungevity are two
companies innovating in this space, and I hope to see more. Most of the meetings, admittedly, sounded like Charlie Brown’s teacher (Despite my engineering degree, I was lost most of the time), but I understand with great detail, the practical implications that software like this can have. Some of these students are going to do great things (greater than they already have) for renewable energy.
With the next term of students, solaropportunity.org should have a polished, finished product with a successful pilot in the city of Oakland, ready to be picked up by volunteers and non-profits around the US.

With respect to how much sun they get, Germany has taken their lemons and made lemonade.
The Renewable Energy Sources Act of Germany forces power companies to buy all the alternative energy created by citizens, at a price greater than market prices, and for a long time (20 years). That massively compelling subsidy has turned Germany into the world leader on solar (and keep in mind, they only get half the sun San Diego does!).
As a salesperson for solar energy here in San Francisco, customers with glorious giant flat roofs will often install the smallest possible system because they have low energy usage. PG&E, the utility company here, does not pay you cash if you produce more than you consume for the year. They will credit towards your next months bill, but no wampum in your hand if you go over.
The only way to incentivize someone to install more solar than they need is to pay them for the excess electricity they generate, which is the only way to create a healthy and clean distributed generation network. That is what Germany does, and it kicks butt. The rub comes from the fact that the money for this subsidy is paid for by the consumers that don’t have solar. Right now they are just paying a Euro more than normal, but that could spike to more, alienating consumers.
The proposal by conservatives is to increase the rate at which the subsidy declines, and possibly lower the term from 20 to 15 years. It is unclear to me exactly whether it only effects new installations, or is horribly nasty and effects people that have already installed (which I doubt). Either way, a deal’s a deal as I see it.
Spain has a similar subsidy, and a hell of a lot more sun, so Germany is concerned they will overtake the lead in the market.
The moral of the story is simply that if you make something compelling financially to people, they act in droves. We need to do that here.
I am good at my job. That being said, even with the most progressive culture in the US, a lot of recent legal lubrication for coding/permits, the best subsidies in the nation, and a ton of sun, my job is hard hard hard hard hard.
I got this info from the NY times: Here is the original article.

… I’m not here to talk about physical technologies like higher efficiency photo voltaic panels, thin film, or plastic- moldable- anode- coating- slices- your- bread- and- makes- delicious- fruit- juices leaps in technology. I have a major beef with the way the media overstates the benefits and understates rollout timeframes of new solar technologies. Why? ‘Cause all it does is make Joe and Jane Solar Considerer wait another decade for the new articles that will make them wait yet another decade… but that’s too much to get into here. Please come back for that article here next week.
I’m talking about the web. Believe it or not, the wonderful series of interconnected tubes that allows us to order milk, RickRoll your parents, or see how far you can hit a penguin can also help more people install solar on their homes. Here are a few of these innovators:
1. Sf.solarmap.org
CH2MHILL and the San Francisco Dept. of the Environment have created a site where you can type in your address, and BANG! You now know how much solar you can put on your roof and how much it will save you month over month. Are the numbers perfect? No, but CH2MHILL is fixing that right quick. Google mashups like this get users excited about solar. You can even find a local installer or talk about the installation you have already made. While it only works in San Francisco, CH2MHIL plans to roll it out nationwide.
2. Us!
As a solar salesperson, I meet with homeowners daily and can see the confusion and frustration written all over their faces. When people start thinking about solar what’s the first thing they do? They go to the internet! Then they proceed to follow link after link, reading a glut of poorly researched, outdated misinformation until they can’t take it anymore, go make a martini, and forget about the whole thing altogether.
Let’s say Joe Solar Considerer in Orlando goes to the web, and somehow we get in front of his eyeballs first. He ends up on our Florida Incentives Page. Pow! He knows that he can get $4/watt in free money from the state to put solar on his house. Zap! He sees an example system quote. Bang! He goes to the end of the page and finds a few local solar installers. Kapow! He knows what he should be looking for in a solar installer and what types of things can significantly inflate the cost of his installation. He fills out a simple form and 6 months later he’s producing clean, renewable energy and is freed from the shackles of his ever-increasing electric bill. Or so we hope.
This site is relatively new and has been a hobby for Dan and I, but we are going to put a lot more energy into now that we have seen that it can actually help. Thank you very much for reading.
3. Clean Power Finance
Also a San Francisco outfit, these guys have nailed down a giant gaping hole in the solar industry: web based financing and integrated quote making. The company I sell solar for hired a genius IT guy who took us out of the stone ages with an excel spreadsheet we call NextCalc. For the guys that don’t have a John (or Hal9000 as I like to call him), Clean Power Finance has a quick and painless web-based solution for generating proposals for solar installers everywhere, and it’s cheap!
Not only does it yank all the current utility rate schedules and photovoltaic module efficiencies to produce extremely accurate quotes, but it integrates financing into the proposal, so Joe Solar Considerer can see that his monthly payment is less than his power bill, instead of the $30,000 price tag which will make him balk. They recently worked out a big deal with Conergy. Goof around with a free trial.
4. Vote Solar
Sometimes legislation changes for the worse with respect to solar or gets hung up in politics. Who has our back? The non profit VoteSolar.org, YET ANOTHER San Francisco player. Please go there and sign up so that you can get updates on when to call politicians, or donate. Your environment will thank you.
Solar works and it works now. Check it out for yourself, it doesn’t cost anything. Unless you’re a huge drive from the nearest solar installer, it’s typically free to get a quote.
From Solar Nation:

We’ve noticed that there’s been quite a bit of chatter and advertising dollars thrown into solar in the bay area over the past year or so. For instance, we were just at a San Francisco Giants game last week and couldn’t help but notice the numerous PGE ads for their solar installation at AT&T park urging homeowners to consider the switch to solar. Glitzy ads from large oil companies (ahem, right right, “energy companies”) also emblazoned large billboards with solar elements. Well, the incentives in California are so good, that we started to wonder how many homeowners out of total in the bay area are already on board. So, it’s time for some good ol’ fashioned data analysis of the Bay Area residential solar market. The figures below were generated from data sourced by one of Dave’s colleagues. See the sources below for more info on their lineage.

As you can see from the image above, Contra Costa county accounts for just about half of the solar installs in the bay area over the past 3 years. The other counties pale in comparison. However, you can see from the chart below that there is a substantial way to go to penetrate the rest of the bay area market. While Contra Costa county does account for half of those installs, consider that that county is only about 2% saturated!

Key Assumptions
1. Size, Installed Price and # of installs numbers based on solar installs from 11/05 -1/08 –See
http://www.energy.ca.gov/renewables/emergingrenewableslindex.html
2. Population and Households data based on 2006 ACS Census estimates –See
http://www.bayareacensus.ca.gov/ for details
3. Penetration calculated as % of households with solar.
Similar versions of this bill were shot down three times in the Senate.
-from Solar Nation
If you’ve been wondering what happened to the bill introduced last week by U.S. Sens. Cantwell and Ensign that would, among other measures, extend solar investment tax credits for residential and commercial use, here’s some up-to-the-minute news.
By a vote of 88-8, the Cantwell-Ensign language was successfully added as an amendment to the Senate’s comprehensive housing bill (HR 3221). This bill passed the Senate on Thursday with an estimated $6.6 billion in tax credits allocated to renewables, and including a lifting of the $2000 cap on residential solar installation credits. (You’ll find details of how your senator voted below).
This is a landmark development on Capitol Hill, since attempts to get the Senate this far have failed three times in the last year. Of course, on those occasions the initial impetus came from the House, and the stumbling block for the Senate was always the source of funding for the tax credits–reducing some of the government subsidies enjoyed by the oil and gas industry. In this case it’s a Senate-originated bill, with no identified source of funding, and that means that the problem this time around may be with the House. Senator Jeff Bingaman (D-NM), head of the Finance Committee’s Energy Sub-committee, has said that the House is unlikely to agree to the provisions without spending offsets.
Sponsors of the energy amendment and Senate leadership have started to work with Representatives and the White House to find a way out of the looming impasse. And Maria Cantwell has not dismissed the idea of paying for the incentives in a tax extenders bill.
“I’m happy to look at any vehicle that’s going to move quickly,” said the Washington Senator. “I think we have a few more weeks before these (renewable energy) projects get cancelled.”
Cantwell and her co-sponsor, John Ensign (R-NV), have argued that since the incentives would stimulate the economy, Congress should approve them without offsets. But this argument is unlikely to sway the House, so senior Finance Democrats and the Bush Administration continue to try to find an agreeable set of offsets that would allow the renewable energy credits to be included on a larger tax extenders bill.
We don’t yet know when, or in what form, the bill will be brought before the House, or what kind of fight it will face there or at the White House. But with Senate passage at least, a step that has been impossible for a year has finally been taken.
Many of you phoned or e-mailed your senators to urge them to vote for clean energy, and 88 of them did! To all of you, thanks for making your voices heard.
And now it might be a good time to thank (or spank) those senators who voted.
The eight holdout senators who voted against the Cantwell-Ensign amendment were:
Alexander (R-TN), Bunning (R-KY), Byrd (D-WV), Carper (D-DE), Dodd (D-CT), Kyl (R-AZ), Sessions (R-AL) and Voinovich (R-OH)
And the four who did not cast votes at all? They were the three presidential candidates (who may well have been otherwise occupied), and Elizabeth Dole (R-NC).
Why not TAKE ACTION NOW and send thanks ‘n’ spanks to your senator(s)? All you have to do is enter your ZIP code below and GO!