red robin selects led light bulbs



Red Robin, a popular restaurant in the U.S. has recently upgraded their lighting from incandescent and halogen bulbs to high efficiency LEDs (light emitting diodes) in 150 restaurants. Red Robin transitioned to 7 watt PAR 20 flood and spot lights which are being used at the entrance and lobby areas, lighting over dining room tables, and perimeter lighting.

The company expects to save several thousand dollars per year in electric and maintenance costs by upgrading to LEDs Today, more than half of the company owned Red Robins have transitioned to LED light bulbs. Do you think LED bulbs are ready for prime time?

Ohio budgeting for solar panel incentives



One of the largest barriers of going solar is the upfront cost. Many cities in California are now offering homeowners low interest financing for a solar electric system that is paid back through property taxes. The money is raised through a bond and then paid back as the residents make the monthly payments on their solar panels. If the owner of the home decides to sell the home, the payments on the solar electric system are continued by the new owner until the system is paid off. When municipal financing is available to residents the number of solar electric system installations skyrocket.

Ohio's state government has made legislative improvements to allow cities across Ohio to raise money for residential solar installations for it's residents.

What do you think about muni-financing that allows more people to access solar power?

shout out to michael raines.



Have you seen The Colony on discovery channel? If you haven't you got to check it out! The reality show is a unique experiment that puts 10 people and their skills to the test in a real-life exploration of what it would be like to have to rebuild after a devastating global event. My friend Michael Raines of SunPower Systems was part of the experiment. The second episode aired last night and the survivors had a major challenge recharging the battery bank they managed to salvage. The team was able to pull it off by making a wood gasifier out of the scrap parts to run a gas engine which recharged the battery bank. It was amazing how the team was able to improvise and be able to generate power with the little resources they had access to.



Michael surprises everyone with his skills in building alternative energy. He is an inventor who fabricates furniture from both wood and metal, customizes cars and bikes, installs solar panels, and makes bows and arrows from scrap metal. Michael is also quite opinionated and is both a conspiracy theorist and pessimist. He feels he’ll survive in a catastrophe because he has vast knowledge on alternative energy and is a fighter. Do you think Mike will survive? check out the episodes online.

roof integrated solar panels



Germany is the #1 user of solar power in the world, their photovoltaic market is much more mature then over here in the U.S. A company named SolarWatt in Germany has developed a "easy in" roof integrated system that can be screwed right into the roof without adding any substructures. The solar panels have an aluminum frame which can be hung on the roof battens by using a tongue and groove connection.

These type of "easy in" roof integrated systems shorten installation time which lowers the installed cost for a solar electric system. Also many customers worry that solar panels will void their roof warranty due to the penetrations that have to be made, although roof integrated systems mitigate the risk of compromising your roof.

small scale wind turbines don't kill birds



The royal society of protection of birds (RSPB) have recently made a move that should dispel a big myth about small scale wind turbines. Many people think that wind turbines kill birds even though there have been many studies highlighting the fact that cats kill more birds than wind turbines. The RSPB recently installed a Proven Wind Turbine at a visitor center to show their commitment towards renewable energy to curb climate change.

According to the RSPB this wind turbine installation is a great example of how wind turbines and wildlife can co-exist, if the wind turbine is properly installed. The Proven Wind Energy System is installed in conjunction with solar panels and both systems can produce enough power to offset the RSPB's visitor center.

how much energy will your small wind turbine produce?



Making an investment in a small scale wind turbine to offset your electric bills can be a challenging task, for many customers the main question on their mind is how fast will the investment pay off? To find the answer, everyone considering to install a small wind turbine in their backyard should complete the following simple calculation to figure out how many kWh you'll be able to generate per year.

kWh per year = [rotor area in sq. ft] * [annual average wind speed mph]^3 * 0.085 * OTE

The 0.085 number in the equation represents air density and the acronym OTE stands for overall turbine efficiency. The OTE will vary depending on the make and model of the wind turbine, the number can range anywhere between 15% and 25%.

I hope this equation will help you make effective decisions when purchasing a small scale wind turbine.

bring low cost solar power to the poor



Nicole Kuepper is on the path to solving the biggest barrier to going solar, cost. One of the primary reasons why solar cells require such a large upfront investment to get started is because of the intensive manufacturing process. The 23 year old scientist has found out a way to use simple household items to manufacturer solar cells on the fly using nail polish and an ink jet printer. Nicole's technology uses the same theory of an ink jet printer to print solar cells that are not made from silicon onto a substrate which then can generate electricity.

Currently the technology is in it's infancy stages, although its great to see this type of development and innovative thinking in the solar power industry because its very much needed help solar power reach grid parity. What do you think about Nicole's process of developing solar cells? In what other ways can the cost of solar panels be reduced for end users?

the scoop on energy efficiency mortgages



A new wave of energy efficiency mortgages are being introduced today by the FHA which allow you to borrow 5% more to upgrade a home you buy with energy efficiency products such as solar panels, LED bulbs, weatherization and other energy efficiency appliances.

According to the FHA, Fannie Mae and Freddie Mac are under pressure from the federal government to develop new mortgages which include more flexible underwriting guidelines to reward energy conscious borrowers and builders. Energy friendly loans would increase incomes of applicants by dollar for every dollar of projected energy savings from green energy upgrades and efficient design. For the program to work correctly, State governments need to provide professional training to licensed appraisers so they can value highly efficient buildings correctly.

What do you think about the federal support for energy efficiency mortgages?

KACO 02xi grid tie inverter



At the Intersolar North America trade show last week Kaco New Energy had their new highly anticipated 02xi series grid tie inverter on display. The grid tie inverter is well suited for residential and light commercial applications and is offered two sizes, 1500 watts or 2500 watts.

The enhancements of the new 02xi series include an improved digital signal processor, a CEC efficiency of 95.5% and integrated AC/DC disconnects. All solar panels on the market are compatible with the KACO 02xi series since it allows both positive or negative grounding. The aluminum NEMA 3R rated enclosure increases the cooling effect which gives the inverter an advantage in hot climates.



sacramento approves feed in tariff



Sacramento Municipal Utility recently approved a feed in tariff that pays people who install solar panels from 5 to 20 cents per kWh (kilowatt-hour) up to 20 years. Feed in tariffs are cash payments from the utility company for the power you contribute to the electric grid. Solar electric systems up to 5 megawatts can qualify to get paid from the Sacramento Municipal Utility. The feed in tariff is also available for home owners as long as they have not received the rebate administered by California for installing solar panels.

A feed in tariff is the same financial policy that accelerated Germany into the #1 user of solar power in the world. Feed in tariffs are gaining popularity in the USA, since the first feed in tariff policy passed in Gainesville, FL. In regions where feed in tariffs are active many small solar farms on homes and businesses are setup to create extra income for the property owner.

What do you think about feed in tariffs? Should the U.S. have a standardized feed in tariff?

Canadian Solar pledges to recycling solar panels



Many people worry that solar panels at the end of their life cycle, which is 30 to 50 years could cause an environmental problem when they need to be trashed. SolarWorld was the first company in the industry that created a recycling program for solar panels but recently a company called Canadian solar that manufacturers low cost solar panels in China has also pledged to recycle old solar panels. Canadian Solar became a member of PV Cycle, an organization that promotes the voluntary take back and recycling of end of life solar panels.

This is good to see more companies create policies towards the problem of what's going to happen when all these solar panels being installed today need to be thrown away 30 years from now. Do you think it's important that solar panel manufacturers have a policy towards recycling solar panels?

get ballpark figures for your solar electric system



Ever wonder how much a solar power system would cost you? Well you don't have to get a quote from a professional if your just looking for ball park figures of the cost of a system after tax credits and rebates. Sharp Solar's clean power estimator not only helps you answer the question, "I wonder how much it will cost to solar power my home?", the online estimator will help you realize all the variables that effect the performance and rate of return on your investment in a solar electric system. I recommend everyone who is just getting started researching a solar electric system for their home should start with the online estimator, it's a great starting point

santa moncia forces solar panels to the back of the bus



Santa Monica is making it more difficult for citizens of their city to go solar all of a sudden. A city known to be friendly to solar panels have all of a sudden changed their tune by introducing a city ordinance that would require solar panels to be installed on the least visible area. According to the city council document the pending city ordinance states:

A critical aspect in evaluating where to install photovoltaic systems, especially on an existing building, is the performance of the system. However, there is no reason that the solar installation professional should not also consider aesthetic aspects when designing a system. To address this concern while retaining a ministerial review process, the proposed ordinance would require solar equipment to be installed in the location that is least visible from the street, with the provision that energy performance is not significantly reduced or the cost of the solar system is not significantly increased compared to a location that is more visible from the street.
The new city ordinance was introduced on June 30th but still needs to go through a second hearing before it goes live. The city of Santa Monica claims that by requiring citizens to install solar panels on the least visible location, it would help the city streamline the permitting process, what a bunch of baloney!

If anyone from the city of Santa Monica is reading this blog post, especially a city official. What I want you to know is that by forcing citizens to install solar panels in the least visible location the city is BREAKING THE LAW. According to California's Solar Rights Act It's illegal for any city to create unreasonable barriers to the installation of solar energy systems, including, but not limited to, design review for aesthetic purposes. The only reason the city can block you from installing solar panels in the area you prefer is if the solar panels pose a public health concern. check out the paper below highlighting real case studies of the California Solar Rights Act.


Schüco ezFlatroof-Light



Schüco USA at Intersolar this week showed off their Schüco ezFlatroof-Light which they claim to be one of the leanest racking systems for quick and simple installations. The racking solution can be used with framed or frameless crystalline and thin film solar panels. The racking solution can be tilted in angles of 7.5, 15 and 20 degrees or any pitch you need to maximize your harvest based on your project site.

Schüco developed ezFlatroof-Light to reduce costs of solar panel installation, make the process easier and allow scalability of the base system while maximizing the roof area available for the solar panel installation. The system is versatile enough to be installed on a private residence with a flat roof or a standard commercial flat rooftop.

first liquid cooled LED light bulb



The two major problems with LED lights are they are very directional light source and the LED chips can get hot when operating for a long time which can potentially shorten lifetime if the LED bulb is not cooled properly. Eternaleds introduced the first liquid cooled LED bulb called the HydraLux-4 which uses a fluid inside the LED bulb to not only cool the bulb but disperse the light 360 degrees around the bulb. The 4 watt bulb is equivalent 24 watt incandescent bulb and is offered in two colors, Warm White and Daylight White.

By the end of this year the company is expected to release a 8 watt, 12 watt and 16 watt versions for people who want more light output. The HydraLux-4 only cosst $1.75 per year to operate and over the lifetime of the bulb can save up to $157 in electric and replacement costs compared to an incandescent. what do you think about the Eternaled HydraLux-4?

sharp's new high power solar panels



Sharp has recently announced their new high output 230w (NU-U230F3) and 235w (NU-U235F1) solar panels are available for purchase this month. The Sharp 230w solar panel combines both performance and aesthetics by offering a high output and a black frame and backsheet to meet the high expectations of residential customers.

The 235w solar panel offered by Sharp is geared towards commercial systems and includes a white backsheet to reflect more light into the solar cells which increases power output. Sharp solar consistently improves their product line by considering customer feedback. Sharp solar offers a 25 year warranty on their solar panels, similar to other solar panel manufacturers although Sharp is a reputable brand name and a customer can have confidence in the warranty. check out the spec sheet for the Sharp 230w solar panel.

products at Intersolar 2009, day two.

Day two at Intersolar 2009 was action packed. I had a really busy day but managed to get you'll some shots of some really cool products right from the tradeshow floor.

A "green" solar panel



Symphony Energy has released the first "green" polycrystalline solar panel. Typically solar panels have either a blue or black color to them, although Symphony decided to change up the color for aesthetic reasons.



Walking around the trade show floor, I noticed all the solar panels started to look the same. By changing the color of the polycrystalline to green the company made their product standout. Their putting the words "going green" in their product literally. What do you think about green solar panels? Would you put these on your roof?

Solar panel security alarm



I wrote about Gridlock Solar Security a few days ago, today I got to meet them in person to talk about their advanced solar panel security device. Similar to a burglar alarm, once the alarm has been triggered the unit not only flashes and sends out an annoying siren but contacts the police and dials telephone numbers that you can program the unit with. This is one of the most unique products I saw at the show because it really focuses on reducing a big problem in the industry, solar panel theft.

produce electricity and heat water




The limitations of solar panels today is there are two different types of systems. photovoltaics generate electricity while solar thermal heat water. What if you can have one system that can both produce electricity and provide you with your hot water needs? PVTherm is doing just that, they've created a solar panel that heats water and produces power with the same solar panel! You can maximize surface area by having one system that take cares of two needs.

Monster solar panel, ahhhhh!



Typically polycrystalline solar panels that are on rooftops are a couple hundred watts but this monster solar panel from Best Solar is 370 watts with a huge footprint. So massive it would be impossible for a couple people to carry this up to a roof.

You would need a crane to get this solar panel installed. We asked the Best Solar representative what type of applications this large of a solar panel would be used for and he said that these solar panels are made for utility scale projects since these monster solar panels produce a lot of power and make it more difficult to steal.

Intersolar 2009 has been a great trade show so far, we've seen a lot of the same but there has been a handful of unique products that are going to make a large splash. What do you think?

products at Intersolar 2009, day one.

We're here in San Fransisco at Intersolar 2009 dedicated to show you some products that we found interesting on the trade show floor. Let's take a look at these innovative products that improve performance, installation and aesthetics.

Schuco Ballasted Flat Roof Solar Panel Mounting:



Installing solar panels on top of a flat commercial roof can be a challenge to not compromise the integrity of the roof since most installations require roof penetrations. Schuco displayed their ballasted solution that holds down solar panels on a flat commercial rooftops with nothing but a simple brick as a weight.



Ballasted systems are great for building owners who have warranties on their roofs but who do not want to void their warranties when installing solar panels. Ballasted mounting solutions typically cost more per watt and add more weight to the roof compared standard racking systems.

Canadian Solar panel with Clear Backsheet



Canadian Solar Incorporated is showing off a solar panel with a clear back sheet. The advantage of using a solar panel with a clear back sheet is light can still penetrate through the solar panel which makes this type of solar panel ideal for applications in which solar panels provide shade, for example a parking structure or canopy. The clear back sheet is on this monocrystalline solar panel is purely an aesthetic feature.

Kaco Solar Inverters with iPhone App?



Kaco Solar has rebranded to Kaco New Energy and has made recent improvements to their residential grid tie product line. I saw a display at their booth about an iPhone application that can interface with your Kaco grid tie inverter and display the inverter statistics right on your iPhone. It seems like more grid tie inverter companies are starting to bring inverter data to your mobile phone, which is a trend I expect to see adopted by other grid tie inverter manufacturers



S-5! expands product line for metal roof attachments



S-5! is a company that focuses on developing attachments for metal roofs, they started with standing seam metal roofs. They have recently created a new attachment product to work on metal roofs with a wavy design.



The convenient aspect of this attachment is it has a special adhesive that protects the installation from roof leaks by plugging the penetrations made to secure the solar panels on the roof. This allows you to install solar panels on a metal roof painlessly without worrying about a leaky roof in the future.

Global Solar Flexible Thin Film



Global Solar is leading the space in terms of developing flexible thin film solar panels to charge up electronic devices and battery packs. From what I saw at their booth, they are displaying a new thin film solar panel that looks quite different from their previous models. I did not get many details on the performance numbers but it seems like they are making design improvements to make their solar panels more practical than just charging battery packs and electronic devices.

There's a lot of people crawling Intersolar this year, I think it's going to get even better tomorrow, more to come. stay tuned!

U.S. Treasury Department releases info on tax grant



Traditionally when you install a solar electric system the federal government gives you a 30% tax credit, although the American Recovery & Reinvestment Act of 2009 turned the 30% tax credit into a grant. A tax grant works similar to refundable credit in which the federal government will send you a check up to 30% of the final cost of a system if placed in service by 2010. If you have a new construction project that starts in 2009 or 2010 then you have till 2016 to have your solar panels placed in service.

The type of properties that qualify for the 30% cash payment from the treasury is still undetermined, although we know for sure individuals do not qualify for the tax grant but only a tax credit, only business entities qualify to apply for the 30% cash payment for installing solar panels. The Treasury department released a guidance document to help you learn about the program before applications are accepted.


ascent solar makes efficiency progress



The National Renewable Energy Laboratory (NREL) recently verified that Ascent Solar's flexible Copper, Indium, Gallium, Selenide (CIGS) solar panels have an efficiency as high as 10.4% This is great news for flexible solar panels since they continue to get better in terms of how much sunlight they can turn into power.

The flexible solar panel that was tested by NREL came right off a Ascent Solar's production line which puts confidence in Ascent Solar's ability to manufacturer 10% efficient flexible solar panels on a commercial level. The solar cells are produced on durable, light weight plastic, the plastic substrate materials result in higher power levels, compactness and flexibility that enable the solar cells to be configured into a wide variety of rolls, foldable packs, or traditional solar panel formats.


hands on solar, leading photovoltaics education



We can all agree that the solar photovoltaics industry is booming, it's taking off like a rocket ship. Although with all this rapid growth surrounding the industry there are growth barriers in the way before solar photovoltaics can reach the mainstream market. There just isn't enough qualified people to help customers go solar, the industry and governments have been funding research & development of photovoltaic technology although they've overlooked a critical component, solar education.

I met Brian Hurd, at an ethnic press conference at USC back in 2006 and was intrigued by his passion to provide quality photovoltaic education and through that experience I learned about the great work he was doing training future solar professionals at the East Los Angeles Skills Center (ELASC). I immediately told my friend Linh Tran to check out the ELASC since he was eager to learn more about photovoltaics.



Linh went to visit the school and was hooked from the very first day, he enrolled the class and the rest is history. He went through the program and eventually became a NABCEP entry level professional, which is certificate of basic knowledge of photovoltaic systems received at the end of the program, if the student is able to pass a well balanced test. In fact, ELASC has the highest passing ratio in the industry for the NABCEP photovoltaic entry level exam.

Today, Linh and other great students from Brian's class at the ELASC are working with GoGreenSolar.com to help customers become more energy efficient and produce power from the sun. At that point I realized that education is the key in the photovoltaics industry, it improves the customer experience of purchasing solar power, keeps the industry reputable by having safe code compliant installations in the field and it makes it easier for solar companies to create jobs since the qualified labor is being manufactured by solar photovoltaics school put together by Brian.

Brain recently retired from ELASC and handed off the teaching to some great instructors but he isn't throwing in the towel just yet. He's now focusing 100% of his time to push solar education even further into the mainstream through Hands on Solar, a company he founded to improve solar education nationwide.




Brian's goal is to allow schools all over the country to share the same success the photovoltaic program has achieved at the ELASC. Hands on Solar works with individual schools to assist in the set up of appropriate instructional programs in photovoltaics, alternative energy, and energy efficiency, based on industry set standards.

In partnership with the Interstate Renewable Energy Council (IREC), the U.S. Department of Energy (DOE), and Advanced Transportation Technology and Energy (ATT&E), Hands On Solar has been conducting workshops throughout the state of California during 2008 and 2009, and consulting with various colleges and organizations on program development and teacher training in alternative energy and energy efficiency.

Mr. Hurd has been involved with solar energy, green construction, and energy efficiency for over 30 years, as a certified contractor, state building inspector, construction auditor, and teacher. In my opinion there is no better person in the industry to set the bar of green energy education. Believe me, I'm a person who has had a taste of the products Brian manufacturers, quality solar professionals that are helping my company grow today. Hands on Solar has a very resourceful website you got to check it out.



SolarWorld's 230 watt solar panel



SolarWorld, a solar panel manufacturer that produces solar panels in Camarillo, CA recently launched their 230 watt Sunmodule. The new solar panel represents an evolution in their product line by making significant design changes which include larger solar cells, increased an inch to 6 inches.

The solar cell count per solar panel was reduced from 72 to only 60. The reduced number of solar cells increases the current while lowering the voltage which is great for maximizing the number of solar panels that can be wired on a string.

The entire solar panel is made right here in the USA except the Junction box which is made in Germany. The SW230 is offered with a silver frame and white backsheet or an ultra low profile black frame with black backsheet. What do you think about SolarWorld solar panels?


prices for LED bulbs dropping like a rock



Your electric bills are raising on the other hand the prices of LED bulbs such as the EarthLED ZetaLux and EvoLux are falling. EarthLED has made bold price reductions to make LED light bulbs make more financial sense for you. The price of the ZetaLux has dropped down $10 dollars, now costs $39.99 and the EvoLux has dropped down $30 dollars to only $49.99 LED light bulbs have an extremely long lifetime, most will last over 10 years since they are solid state technology.

A typical LED bulb would break even in two years when you factor in the incandescent bulb replacement cost and energy savings, if your cost for electricity is 10 cents per kWh (kilowatt-hour) I think EarthLED is making some game changing moves to accelerate the adoption of high efficiency light bulbs, this is great news for customers because now you will even break even faster as the price of LED bulbs continue to reduce.

stopping solar panel theft dead in it's tracks



Solar panel theft is a growing problem in the solar power industry. This is a problem is currently being addressed through lockable clamps that hold solar panels down to rails, although thieves can still cut through with the right tools. Lockable clamps are just one line of defense you can use to protect your investment.

Gridlock Solar Security, a start up company is taking solar panel theft deterrent to the next level by using electronic technology. The company is producing a wiring system that would be installed on your solar panels, if the solar panels were removed without authority, bright lights and sirens would go off. Also the system would send out an alert to your cell phone and even call the law enforcement. All this protection at the cost of 1% of your solar electric system.

I think this is a pretty neat solution to a problem that is quite new, people want to steal solar panels more than ever. And this is great time for companies to create solutions that are going to make the process of going solar less risky for the customer. What do you think?

Sanyo N Series Complete Systems



I wanted to let you know that we now have complete solar electric systems with the brand new Sanyo HIT 215N high efficiency solar panels. The complete solar electric systems with Sanyo HIT 215N solar panels generate even more watts per square foot and cost less than the older Sanyo HIT 200BA19 solar panels which are being phased out.

The great aspect of purchasing a complete system versus sourcing all the parts yourself is that these packages are permit-ready and include an installation manual, very useful for people who are installing solar panels for the first time. Residental solar electric systems traditonally require design, drawing out single line diagrams, and buying all the little parts that make up a solar electric system. With pre-package solutions it's much easier to get started with solar power since every compotent you need comes in a kit.


QuantaSol breaks efficiency record

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At the Royal Society Summer Science Exhibition QuantaSol announced their world record breaking solar cell that is 28.3% efficient. Founded as a spin off from Imperial College in London, the company started in 2007 to focus in commercializing the solar technology developed at the university.

QuantaSol not only claims they have developed the most efficient solar cell on the market but they say the manufacturing process is an ease. The company's secrete sauce to their highly efficient solar cells is the nanotechnology behind their products.

This is good news for mass market customers because the trend of the solar industry is more highly efficient at lower costs, this is the perfect recipe for solar power to go mainstream, wouldn't you agree?

SMA Sunny Tower Inverter System


SMA is well known for residential grid tie inverters, but how about commercial solar electric systems that need larger inverter capacity? Meet the SMA Sunny Tower, offered in a 36kW or 42kW models the Sunny Tower groups 6 inverters into a single tower enabling the grid tie inverters to handle commercial scale applications.

The advantage of using a Sunny Tower in a commercial application versus one central inverter is the increased reliability since multiple SMA inverters are linked together to increase capacity. Therefore if one inverter goes down in the Sunny Tower the entire solar electric system does not fail.

The unique design of the Sunny Tower requires less installation space which is a big plus when you encounter a project site with limited space to install the inverter. SMA claims the Sunny Tower offers the lowest cost per watt for a commercial solar grid tie inverter solution. What do you think about the Sunny Tower?


a new Declaration of Independence



On July 4th, 1776 our great nation declared Independence from England, this day marked a significant shift in world history. One of the most famous phrases in the Declaration of Independence was "Life, Liberty and the pursuit of Happiness", which is a phrase honored by many countries around the world.

To this day Americans, continue to protect to live life protecting the values set by the founding fathers, "Life, Liberty and the pursuit of Happiness". Although today we face another challenge that can disrupt the way we enjoy our freedom.

When gas prices go up, people start to cut back on the things they enjoy to do, they cut back on their freedom. Energy has a python like grip around our lifestyle, we make adjustments in our lives based on the cost of energy. Wouldn't you agree the people who supply our energy are controlling our freedom?

Today, we aren't fighting for freedom from England but we're fighting multinational corporations for Energy Independence. Let's face it, as a country we're addicted to energy and we depend on the hand that feeds us energy everyday. It's time we write a " Declaration of Energy Independence", a vision that preserves our right to purse Life, Liberty and Happiness by empowering you to control your own energy destiny through solar energy, wind power and renewable fuels.

Happy 4th of July!

printable batteries, wave of the future?



The Fraunhofer Research Institution in Germany is developing the next generation battery, currently batteries are heavy and depending on their capacity can be very large and not portable. Similar to silk printing, the new battery technology being developed can be printed which is revolutionary in terms of battery manufacturing.

The battery shown in the picture above is not only small, thin but weighs only 11.5 grams and can produce up to 1.5 volts, which is unlike any battery on the market. Since the battery can be printed, the manufacturing costs are intended to be very low thus reducing the cost for batteries to customers. I'm glad to hear about advancements in battery technology because I think battery technology is not good enough yet, there is a lot of room for improvements with batteries. What do you think about printable batteries?

why do UMG solar panels have a lower cost per watt?



UMG (Upgraded Metallurgical Grade) Silicon based solar panels have been debated because they use a lower grade Silicon to reduce the cost per watt for solar power to the end customer. Canadian Solar Incorporated (CSI) is a company that has changed the game by introducing UMG Silicon solar panel on a large scale into the solar panel market. The primary reason solar power has not reached grid parity yet is because pure silicon prices very high and UMG silicon based solar panels are more competitive to coal based generation because of the lower cost.

UMG Silicon is 95% pure compared to high grade silicon which is 99% pure. Solar cells only need a silicon purity of 95% to produce energy, therefore CSI blended UMG with pure silicon to create a lower cost solar panels. Although many people argue that these newer lower cost solar panels are unproven in the field, and it's a point well taken. On the other hand, CSI is offering 25 year performance warranties on UMG based solar panels. What do you think about low cost solar panels that use UMG Silicon? Do you think they will be as reliable as solar panels that are pure silicon?

should you build your own solar panel?



This week many people have been asking me if they should "build their own solar panels". There are quite a few eBooks and videos being sold online give you step by step instructions on how to find solar cells and turn them into solar panels in your garage. This is my two cents on if you should make your own solar panels or not.
  • it would make a fun experiment, for educational purposes
  • don't expect too much power output in which you could power your entire house with homemade solar panels
  • they have a higher risk catching on fire than factory made solar panels
  • You typically can't grid tie homemade solar panels because they don't have a UL mark. Most utility companies won't allow you to grid tie unlisted product.
If you're looking for a fun educational weekend project that results in you making a solar panel to charge a battery then that is what should expecting purchasing a "make your own solar panel" resource. Although if your looking to generate serious power with reliable and safe solar panels I would highly recommend purchasing a high quality factory made solar panel. What do you think about the concept of making your own solar panels?