Rainbows Could Double Solar Energy Output!
Increasing the amount of electricity a solar panel produces is one of the most effective ways to reduce the cost... Read
Increasing the amount of electricity a solar panel produces is one of the most effective ways to reduce the cost of solar power.
MIT’s Technology Review reports on a new $2.4 million project funded by the U.S. Advanced Research Projects Agency for Energy aims to greatly increase the amount of sunlight that becomes electricity.
Harry Atwater, a professor of applied physics and materials science at Caltech, is working on cells to sort sunlight into eight to 10 different colors (a rainbow!) and direct those to a second layer that contains an array of solar cells matched to each color. Light is absorbed more efficiently, and more energy is converted to electricity, rather than heat.
Most solar panels convert less than 20 percent of the energy of the sunlight that falls on them into electricity. Atwater’s goal is a conversion efficiency of more than 50 percent, which would double the amount of power generated by solar panels of any size.
Rainbow solar power! This technology will make solar more affordable for homeowners and industries, alike.
Other Ways to “Go Solar”
“Solar panels are everywhere these days; on your roof, in the fields, on the sides of buildings, on eco-friendly cars,... Read
“Solar panels are everywhere these days; on your roof, in the fields, on the sides of buildings, on eco-friendly cars, and even sprawling across hillsides and mountain sides. You may or may not have noticed that they’re a few more places now. Check out these additional ways to utilize Solar (no leasing model required):
“Array” Solar Backpack from Voltaic
This behemoth of a backpack can charge your laptop while on the go – and store it too. That way, you can charge up while riding your bike, at an outdoor conference, or while camping with the family. It also charges cellphones, portable gaming systems, and tablets – and at a modest $389, it’s a small price to pay to have independence from the outlet.
“Brighta30” Street Lamp
Cities are rapidly adopting this new way to light the streets. It’s not only green, but extremely cost efficient when you consider how many streetlights are in your town or city. We also see them coming up across college and corporate campuses. The Brighta30 (featured above) is from Greenshine, who specializes in solar lighting solutions – from garden lights to full-scale city lighting.
“Soulra” Solar Powered Boombox from Eton
Solar Powered Boomboxes are a great idea in the summer, considering you don’t have to have an outlet to power it – making your family picnic or weekend bonfire the happenin’ place to be! This one from Eton is only $150 and is iPod and iPhone compatible, but also has an audio input line. Oh and for a limited time, it comes with a free messenger bag to carry it!
There you have it – if you’re not ready to go solar (or even if you are…), there are great ways to still show your love for Photovoltaics!”
Top 10 Reasons to Go Solar
“It’s pretty obvious that Solar is the future of energy for most of us – and why not? It’s clean,... Read
“It’s pretty obvious that Solar is the future of energy for most of us – and why not? It’s clean, for sure. But if you’re looking for a few pointers to help state your case to go solar, try some of these!
As soon as residential solar is installed, you begin to save money. Also, when your solar units produce more power than you need, you will feed the electrical grid. And who buys this electricity? Your friendly neighborhood power company. The value of the electricity purchased by your local utility is seen on your monthly bill as a credit – which means they pay you (a nice change of pace, don’t you think?)
2. Peak Shaving
Many locals have “peak shaving time”. Peak shaving time refers to the time of day when the greatest draw on the electrical grid is seen. For most of us, we see this time during the heat of the Summer day. In order to aid in reducing the demand of electricity, many local utilities charge more for power during this time. Solar power coincidentally produces its maximum output at this same time. Since you’re using less power from the grid, your power bill does not see this peak billing. Take that, summertime!
3. Environmentally Friendly
Solar PV produces no radiation, carbon emissions or noise.
4. Socially Friendly
By requiring less energy, there is more available for others and less need to construct new power plants. It’s like the electrical equivalent to a cup of sugar.
5. Installation has never been so inexpensive
Due to local and federal tax incentives, competition in the marketplace and supply have significantly driven down the cost of solar power. In fact, many places offer next to zero cost for installation.
6. New modern designs
Today’s solar designs are nothing like the big boxes of the 1980’s. There are many designs that are completely flush with your roof. There are many styles that are actual tiles / shingles themselves. (See our article about aesthetically pleasing solar tiles if you need proof!)
The solar panels used in these systems are warranted for at least 20 years and often, even longer.
8. Low Maintenance
Solar PV requires little maintenance. Just twice a year you need to hose off any dust/dirt.
9. Adds life expectancy to roof
The main element that destroys all roofing materials is Ultra-Violet light (UV) emitted by the sun. If the roof is shaded or covered with solar panels, the UV does not attack the roofing system in these areas.
10. Solar PV can be mounted on shade structures
This can include such structures as carports in parking lots or exterior roofed lunch areas.
There you have it. 10 great arguments to help you win your to go solar!”
Top 10 Questions for Your Local Solar Installer
“So you’ve decided to go solar – congratulations! But now what? Well, it’s time to research your local solar installers.... Read
“So you’ve decided to go solar – congratulations! But now what? Well, it’s time to research your local solar installers. If you live anywhere near any of the major DMAs, there’s bound to be plenty of options. That said, we’d like to suggest a few questions to ask the solar installers you interview.
How long has your company been installing solar electric systems?
In our opinion, you should look for a company that has been installing in your area for 4+ years. With this level of experience, they understand local installation requirements, and have a long enough track record for you to review consumer comments on websites.
How many of your employees have solar panels on their homes?
We love this question. If their employees don’t believe in solar, they why should you believe in them?
How many NABCEP certified employees work for your company?
A very large majority of licensed electricians do not have training or experience with solar electric systems. NABCEP provides a well-respected certification process that requires the installer complete classroom hours, lead multiple PV installations, and pass a comprehensive exam. If the installer is not NABCEP certified, we would encourage you to look for a new solar installer.
Will everyone working on my system be an employee of your company?
Sub-contractors are not always a bad thing. However, you want to make sure that you meet everyone working on your home. Additionally, if a company is using a sub-contractor, you should ask how long the two companies have worked together. You are looking for a long-term relationship (no online profile required).
Can I see a list of ten clients that you have installed solar electric systems for?
An installer who has pride in their work will always be able to supply you a list with at least 8 names on it. When contacting these customers, see if you can drive by their house to see the installation.
How do you determine your system output data?
We love installers who will come to your home free of charge at least once during the first year to evaluate how your solar installation is performing. We believe a check-in at the six month mark is ideal.
How long is your warranty on all of my components and your work?
In addition to manufacturing warranties, a qualified solar installer will also back their work.
Does your panel manufacturer perform quality control audits on your installations?
Few solar panel manufacturers will audit installations to measure the quality of the companies that sell their products. In our opinion, preference should be given to those companies who are audited.
What is the efficiency of the panels that you are proposing to install?
Positive Energy answer: More efficient panels require less space, and allows you to get more energy output per square foot. A smaller array footprint is very important to avoid shaded areas, when shading is an issue. It also means less weight for the roof, fewer attachment points, less labor and less installation material required.
How does your company implement its values?
One way companies vote for a more sustainable world is with their dollars. We give preference to companies who buy many of their products and materials locally. Additionally, we believe that an employee-owned company with a profit sharing program shows a commitment to employees.
Now that you’re armed with an arsenal of important questions to ask, we think you’ll be able to find the right solar installer for the job! If you’re interested in being connected with a trusted, certified solar installer in your area, check out our solar page!”
Retailers – The Quest to go Solar
“Many retailers today – large and small – are looking for ways to be sustainable, and also do things that... Read
“Many retailers today – large and small – are looking for ways to be sustainable, and also do things that make sense for the business. Going Solar has been one of those things that make sense for both goals. With growing frequency, companies from Apple to Walmart have been making this a reality. Below are a few examples of companies who are utilizing renewable energy and paving the road to an energy-efficient world.
IKEA, the largest home furnishing store in the world, is up to 30 solar installations in its stores across the US including Tampa, Florida (July 2012) with the one of the latest in Frisco, Texas (August 2012). The company has made a serious commitment to sustainability and confidence in photovoltaic technology.
IKEA owns and operates each of its solar power systems atop its buildings. Drawing from its Swedish heritage, the company believes that Solar can be a good business while aiming for its operations to minimize impacts on the environment.
Walmart has installed more than 150 solar projects across the US. The company currently has 62 megawatts of solar panels installed, while operating fuel cells and wind turbines at other locations. Walmart has plans to have 1,000 solar-powered locations by 2020.
By the end of 2012, Apple will meet the energy needs of their Maiden, North Carolina datacenter by generating onsite renewable energy. They are building two solar array installations which use high-efficiency solar cells and an advanced solar tracking system.
Apple plans to buy solar panels from SunPower for the huge solar farm, and the projects should be completed by the end of the 2012.
In 2010, the Macy’s solar installation in Goodyear, AZ claimed the title for the largest single-rooftop system in the US. Most of Macy’s efforts have been focused in California, installing solar panels on 26 stores.”
Solar Calculators – Meet Computer Calculators!
“You’ve seen the Solar calculator. Now check out the Computer calculator. No, it’s not in your “Start” menu. Rather, it’s... Read
“You’ve seen the Solar calculator. Now check out the Computer calculator. No, it’s not in your “Start” menu. Rather, it’s a calculator created by Utah-based firm, Xi3 – to show you how much you could be saving (not by going solar, but rather, by going modular).
Xi3 claims that their new “modular” computer uses up to 95% less energy than the average household computer – at a modest 20 Watts of electricity to operate.
In fact, the savings calculator isn’t the only thing they have in common with solar installers. Xi3 also offers a leasing option (cleverly named “ecolease“), in which it claims that the potential energy savings (mostly for small-medium sized businesses) actually offset the monthly lease payments – which they call “Getting a Free Computer”.
Another added benefit of the system is its ability to run multiple instances of the operating system on several linked-up machines.
So if you’re looking for a way to cut down on the power bill and you’re not quite ready to go solar, maybe green-tech is the way to go!”
“Justin Bieber got one for his birthday. Leonardo DiCaprio’s got one. Even Ashton Kutcher’s internet billionaire character on Two and... Read
“Justin Bieber got one for his birthday. Leonardo DiCaprio’s got one. Even Ashton Kutcher’s internet billionaire character on Two and Half Men drives one. Yup, we’re talking about the Fisker Karma.
At first glance there is no denying that it is one sexy ride (just look at those curves!). But we here at DAbB know that beauty is more than skin deep – and are consequently drooling like crazy.
Touted as “the world’s first premium hybrid electric vehicle”, the Fisker Karma employs a ton of awesome green features. Here are some of our favorites:
Reclaimed Wood Trim: From the get-go, buyers get to choose from a trio of certified wood trims that range from wood retrieved from the 2007 firestorm in Orange County, CA, sunken wood sourced from the bottom of Lake Michigan, or certified fallen wood from California storms.
One Hot Roof: The Karma features the world’s largest seamless solar glass roof for a production vehicle, which converts sunlight into stored electric energy to charge the battery, regulate interior climate systems, and increase the car’s electric driving range.
That Eco-Suede: Slip inside the cockpit and experience 100% recycled post-industry virgin polyester Eco-Suede, which reduces energy consumption and CO2 emissions by 80% during the recycling process. What does that mean to you and me? Soft, supple, & eco-friendly
Adios, Gas Pump: To top it all off, the Karma sips gasoline, resulting in an impressive 52 MPG on the highway plus an additional 32 miles on a single electric charge! All those savings should come in handy when you’re making payments on a whopping $102,000 base price tag!
Massachusetts is Doing a Bit Better!
Did you know that Massachusetts has the nations eighth-highest electricity rates? It’s no wonder the residents are installing solar left... Read
Did you know that Massachusetts has the nations eighth-highest electricity rates? It’s no wonder the residents are installing solar left and right! In 2012, Massachusetts ranked the sixth highest in solar installation–generating $500 million dollars spent on solar energy!
2013 is going to be a great year for Massachusetts solar. Great job Doing a Bit Better!
“We are often asked the following questions: What is solar energy? How do the sun’s rays become electricity? And can... Read
“We are often asked the following questions: What is solar energy? How do the sun’s rays become electricity? And can you please explain both in common English?
That being said. Welcome to Solar 101.
Solar terms defined
The solar cells that you see on calculators are called photovoltaic (PV) cells. Photovoltaic combines two words: “photo” meaning “”light”” and “voltaic” meaning electricity. A solar panel is simply an array of many joined photovoltaic cells. Photovoltaic cells are most often made from silicon semiconductors.
So how does sunlight become electricity?
Now, remember back in 8th grade science when we learned that light is a form of energy? When sunlight strikes the cell, a certain portion of light is absorbed within the semiconductor. When the sunlight is absorbed the semiconductor knocks a portion of the lights electrons loose. (Again, remember that all matter basically has protons and electrons).
PV cells all have an electric field that forces the free electrons to move in one direction. This flow of electrons creates an electrical current. To light up your living room, your solar wiring simply taps into this current.
And now you can wow your neighbors at the next block party. Kudos.”
A Greener, Easier Saturday
“When Saturday rolls around for many guys across America, there is one thing they can count on: mowing the lawn. ... Read
“When Saturday rolls around for many guys across America, there is one thing they can count on: mowing the lawn. For some, rolling up the sleeves and gassing up the mower can be a stress-relieving ritual of good ol’ fashioned hard work. But for many others, it’s just another item on a never-ending list of chores. But either way you look at it, there’s still a good chance that you’re pouring carbon emissions into the planet with every rip-start of your gas powered lawn mower. So, we at DAbB decided to do a little digging and found a solution. What we found is a trick like man-toy to help make your Saturday less busy and more eco friendly.
Introducing, the Husqvarna Automower® Solar Hybrid: the world’s first fully automatic lawn mower that is partly powered by the sun. Just turn it on, set the cutting schedule and let the Automower do the rest! Think of it like a Roomba® for your lawn – you just lay down parameter wire and the Automower chomps everything else.
According to Husqvarna, the Automower® Solar Hybrid uses less energy than any conventional mower because, in addition to a charging station, the integrated solar panel extends its cutting periods before it needs recharging. So you use less power and you do less work – who doesn’t like that?
Aside from being both quiet and good for the earth, it hosts a number of awesome additional features including:
-Remote text message that notifies you of any unscheduled disturbance
-Anti-theft alarm and pin code (which you’ll want with the hefty $3K price tag)
-Safety sensors to shut the mower off if it is lifted or tipped over
-A weather proof design that can handle terrain slopes up to 35 degrees
So if you’ve got a lawn up to ½ acre in size (and an extra three grand burning a hole in your pocket), the Husqvarna Automower® Solar Hybrid mower could be just the tool to make your Saturday a little bit better.”
First Solar Powered Airport
India has achieved a goal that is in the right direction. This past week Cochin International Airport, based out of... Read
India has achieved a goal that is in the right direction. This past week Cochin International Airport, based out of the southern Indian state, Kerala, has garnered praise for being the first airport solely ran off of solar power. The airport, which had installed a few solar panels in 2013, has claimed its right to be the first airport to run exclusively off of solar power. This immense project has led the airport to claim 45 acres of land, and includes 46,000 solar panels spread across the 45 acres. Projections show that if the airport runs functionally for 25 years, than it will be saving roughly 300,000 tons of emissions, which is equivalent to planting three million trees, or not driving 750 million miles. A milestone to say the least, and yet there is still so much we can do. But, it shows that gains are being made, and we’re striving to make our world healthier.
Not Your Parents’ Solar Panels!
“With the recent explosion of the solar market, many people are turning to solar power as a way to live... Read
“With the recent explosion of the solar market, many people are turning to solar power as a way to live a more sustainable life by harnessing the natural power of the sun, and save a few bucks in the process. But some are still hesitant to join the solar movement because they fear the benefits of solar will not live up to the aesthetic drawbacks of having a large system mounted on their roof. But to those naysayers we say, never fear – Solar panels have come a long way! Long gone are the days of ugly, chunky panels that look like an awkward toupee on your home’s head. What’s more, the option to lease solar hardware allows consumers to focus their investment on the service, rather than the hardware. There are a few on the market that we think help homes look a bit better…
Solar Shingles – These sleek solar panels are seamlessly installed into most standard roofs. Depending on budget, usage, and roof design, they can be installed over entire roof sections, or blended throughout standard asphalt shingles for a virtually invisible look.
Solar Tiles – For those with Spanish style architecture utilizing terra cotta tiles, the Solar industry has you covered. As with Solar Shingles, these tiles can be interspersed throughout standard tiles, or used exclusively to achieve a Greek Mediterranean look.
Solar Film – Ideal for sheet-metal roofs, solar film can be unrolled and installed between roofing ridges. At only a fraction of an inch thin, these panels provide a great camouflaged solar solution.
Concentrated Photovoltaic Solar Cells – For those that opt for ground mounted systems, concentrated photovoltaic solar cells provide a very strong solution. These systems use mirrors and/or lenses to concentrate a large area of sunlight, onto a small area. The result is one of the most efficient panel options available.
Help your CA neighbors Do a Bit Better
Are you up on your California state law? Trees that are tall enough to block solar panels can cost the... Read
Are you up on your California state law?
Trees that are tall enough to block solar panels can cost the tree owners up to $1,000 fines (daily!). State Law requires homeowners to keep their trees, or other plant-life, from shading neighbor’s solar panels between 10 a.m. and 2 p.m., when the sun is at it’s strongest.
Help your neighbors Do a Bit Better, it’s the law!
Vermont’s PUP program is helping people Do A Bit Better!
Recently, the local clean energy advocacy group, Energize Vermont, announced the “Power Up Program” which is an unique partnership with... Read
Recently, the local clean energy advocacy group, Energize Vermont, announced the “Power Up Program” which is an unique partnership with American Clean Energy Supply, LLC. Together, they are bringing affordable, high quality solar installations to Vermonters all over the state!
Way to go Energize Vermont! Thanks to your PUP program, you truly are Doing A Bit Better.
Maryland comes out on top!
The Ecotech Institute recently released the very first “Clean Jobs Index” (there are over 3,000,000 jobs across the county!). Something... Read
The Ecotech Institute recently released the very first “Clean Jobs Index” (there are over 3,000,000 jobs across the county!). Something that we are really interested over here at Doing a Bit Better are LEED Projects. For those who need some catching up, LEED Projects stand for Leadership in Energy and Environmental Design Projects. This could be anything from a building installing solar panels, to conserving water in the work place. And you all know how we feel about solar (it’s the future!). We would like to congratulate Maryland for coming out on top as the state who has the highest number of LEED projects per capita! Way to go, we hope the other 49 states follow your lead–no pun intended. To read about other states rankings, click here.
Spring Cleaning Your Solar Panels
It’s spring cleaning time. Aren’t you excited? We have had a few questions about how to clean solar panels. After... Read
It’s spring cleaning time. Aren’t you excited? We have had a few questions about how to clean solar panels. After all, dirt, debris, and even bird droppings can quickly reduce the amount of electricity your system will produce. Please keep in mind, this is how we clean our panels, however, we deeply encourage you to follow the specific instructions outlined in your user manual.
-We recommend you spray down your panels at least twice but preferably four times per year. In doing so, you will spend a very short time cleaning your panels
– You should spray in the morning. You don’t want the water to evaporate due to the heat of the day
-Inspect after you spray. Yes, this means you will most likely have to climb up on your roof
– If you see a stubborn stain, typical glass cleaner will remove it quickly
– Just one other safety note: never climb onto your roof if you are not comfortable with this activity. Also, never do it alone…have someone hold the ladder
-Inspect the panel while you are cleaning it for cracks in the glass. Solar panels most often malfunction because of water damage. If you notice any cracks, fill the crack with a high-temperature silicon seal.
-Inspect wire connections as well for any sign of damage or decay. If you find a damaged wire, replace it immediately. Keep these connections clean and as dry as possible.
That’s it. Now, get the kids to clean out the garage!