What Are Solar Panels Made Of?

Though just about everyone has heard of solar panels by now, not everyone knows what these interesting pieces of technology are actually made of.

Beyond a simple comprehension of what solar panels do, people are largely unaware of just how intricate they are and how advanced the technology behind them really is.

Most individuals are fine with just knowing that the panels are made of a special material that’s able to absorb and use the power of the sun, even storing it for use during periods when the sun isn’t shining, such as cloudy days and, of course, at night.

But if you really want to know more about solar panels and the materials that are used to construct them, read on to learn more.

 

The Materials that Make Up Solar Panels

Solar panels are made from a combination of two elements: silicon and silver.

Every solar panel is actually composed of many individual solar cells. The cells themselves are nothing more than pieces of silicon.

Thankfully, silicon is highly abundant in the environment, so environmentalists can rest easy knowing that the Earth isn’t being depleted of this important element.

Silicon in the solar cells is able to absorb the energy from the sun and actually convert that energy into electron energy.

Once the electrons begin flowing between the layers of silicon, it’s up to the conductor within the solar panel to actually use the energy that’s been generated.

Silver happens to be the element that’s most widely used in solar panels because almost all of the energy that’s generated from the solar rays which hit the cells can actually be used.

This results in less waste in terms of heat and energy.

The Anatomy of a Solar Panel

By connecting multiple solar cells to one another, more electricity and higher amounts of voltage are created. Once these are all connected together, they form a solar panel.

Facing these panels at the proper angle with the least amount of shade and the most amount of sun will guarantee that the most electricity possible is generated.

Once they’re placed on a building, they’re usually installed facing southward, or with an automatic rotation system to follow the arc of the sun.

The panels are also usually set up so that there’s an ample amount of space between the roof of the building and the panels themselves to prevent all of the heat that’s generated from becoming trapped and potentially hazardous.

The more panels that are installed, the more electricity that is generated from them.

 

More Complicated Than It Seems

While this very basic description of solar panels may make them seem like simple structures, they really are very complex.

In fact, engineers and scientists have to work extremely hard at making sure that the right materials are used in the right concentrations to make the solar panels work as effectively as possible.

This is why solar panels are so expensive (though the price is steadily dropping), as there has been a lot of research and hard work put into their design and manufacture.

However, they’re more than worth it for the money you’ll save on your energy bill each month.

Panasonic Enters AC Solar Panel Market Without Tesla

A new Panasonic AC solar panel is coming to the U.S. market, but we don't know if Tesla's Gigafactory is where the panel will be made.

Panasonic (NASDAQOTH:PCRFY) and Enphase Energy(NASDAQ:ENPH) announced a partnership that will bring AC (alternating current) solar panels to the U.S. market by the summer. Enphase's micro-inverters will be attached to Panasonic's high-efficiency HIT solar panels.

The move follows an industry trend to install module-level electronics -- micro-inverters or power optimizers on each solar panel -- at the factory level. The goal is to reduce installation costs and add functionality like instant shutdown at the panel level, which regulators are starting to require. 

IMAGE SOURCE: SUNPOWER.

Panasonic's solar panel play in North America

The product announcement says Panasonic will pair its N Series HIT Modules N325 and N330 with Enphase's 320 watt IQ 7X micro-inverter. The N330 module carries an efficiency of 19.7%, above the efficiency of commodity-type solar panels, while Ephase's micro-inverter has a CEC efficiency of 97.5%.

The partnership is clearly aimed at taking some of the market share SunPower (NASDAQ:SPWR) has gained with its X-Series AC modules, which carry an efficiency of 22.2% and a CEC efficiency of 96%. Panasonic is also catching up to AC products LG, JinkoSolar(NYSE:JKS), and SolarWorld have made with Enphase. 

Where is Tesla?

What was missing from the announcement is arguably more important than what was in it. Panasonic is producing solar cells and modules in Tesla's(NASDAQ:TSLA) Gigafactory 2 in Buffalo, New York, potentially the largest solar manufacturing facility in the U.S. -- but the facility wasn't mentioned in the announcement. It's worth noting that it's a facility that will be tariff-free, given the Trump Administration's tariffs on solar imports. The absence of any commentare about the facility is notable.

This isn't to say that Tesla and Panasonic won't be producing AC modules in Buffalo, but I would think they would want to play up the deal if that's what was happening. Maybe they're still pursuing a strategy of staying tight-lipped about what's going on at Gigafactory 2? 

Is Panasonic playing all fields? 

Panasonic bringing an AC solar module to market in the U.S. makes a lot of sense given industry trends. It can help lower costs by installing module-level electronics at the factory, and regulations will soon demand these products for solar installations. 

What's not clear is whether these AC modules will be imported, and therefore subject to solar tariffs, or be built at Tesla's Gigafactory 2. Panasonic has had trouble gaining traction in the U.S. market, so wherever it chooses to undertake production it needs to bring a cost-effective product to market that can compete with more efficient competition. Maybe it makes sense to broaden the potential market outside of Tesla, which doesn't seem to be interested in growing its business at all these days. 

How to make a solar panel with household items

Solar energy is the better option as compared to the electricity. Solar energy is more affordable because it relies on the sun and also it is more environment friendly.

How to make a solar panel at home.

Solar energy has been explored in the past but the efficiency is not as fast as the electricity. This is because sometimes the weather changes. In cold areas it is hard to solely depend on solar energy. Solar panels can be improvised and made from household items. Below is an elaborate procedure of making a solar panel.

How to make a solar panel with household items

The materials needed are;

Two aluminum strips a non coated copper wire is also applicableGlue preferably the permanent glueTape

Glass pieces. They should be two like the slides used in the laboratoryBlackberries or blueberriesSunscreenCandleCupCoffee

Method on how to make a solar panel using foil.

Glue the aluminium strips to the glass slides. The strips should be of equal sizes.Take the bowl, and put the berries in. Mash the berries and extract the berry juiceFilter the juice using the filter and put the filtered juice in a separate cupAfter filtering the juice completely, set it aside for later useTake the slide that is taped with the aluminum foil and then tape the corners.Apply the sunscreen to the taped slide. Apply generously for best resultsSmooth out the sunscreen evenly using any round objectRemove the tape and leave it to dry for around 10 minutes or soAfter it dries up, immerse the slide in the juice that you set aside. Give it around 15 minutesTake the other slide and light the candle. Burn the side that has the aluminum foil completely. This slide will start turning black. Do it until you cannot see through the glass.Take the soaked slide and wipe off the extra juiceTake the soaked slide and add 4 drops of iodine.Take the slide that is coated with carbon and place it on top of the one that has iodine. Take some paper clips and slip the two slides.Take the tape again and cut it into three equal piecesTape the slides three times to ensure that the two slides are held tightly together

You will have created a home made solar panel. This is an answer for how to make a solar panel for school project.

The titanium dioxide will react with the juice and the result is a semi-conductive material. When the light hits this material it causes the carbon and iodine atoms to move in one direction. This causes an electric current of some sort. The above process will make a solar cell. A combination of many solar cells make a solar panel. The more you solder the solar cells together in a series pattern, the more they produce more current.

Some people may wonder how much does it cost to make a solar panel from home?

The answer is very little money because if you have all the above items, you will not need to buy anything to make your solar panel. It is a very easy process that is affordable too.

These solar panels that can pull clean drinking water out of the air just got a big boost

Cody Friesen, CEO of Zero Mass Water.Zero Mass Water

Zero Mass Water makes solar panel arrays that pull clean drinking water from the air.The $4,500 arrays just launched in the United States.Zero Mass arrays could come in handy in areas where water sources are far away or scarce. Some homeowners have purchased arrays as an alternative to plastic water bottles.

Around the world, approximately 2.1 billion people do not have immediate access to clean drinking water.

A sustainable water startup called Zero Massaims to make clean water easily accessible to more people around the world. In 2015, itlaunched its first product, Source - a solar panel array that harvests and filters water from vapor in the air - in eight countries, including Chile, Jordan, and Peru.

Source is now available in the United States, CEO Cody Friesen, a material scientist and MIT alum, told Business Insider.

Each panel costs $2,000 (plus a $500 installation fee) and generates an average of two to five liters of water daily, depending on humidity and sunlight. Source can work anywhere, and many arrays are deployed in deserts where water is scarce, Friesen said.

Comprised of proprietary materials, the panels use sunlight to produce heat, which allows them to collect water vapor from the air. Friesen wouldn't disclose what the materials are, but said they have an ideal binding energy for humidity.

Source panels on a home in Scottsdale, Arizona.Zero Mass Water

The harvested vapor is sterilized and turned into a liquid. The device adds minerals to increase the water's pH levels (to make it taste more like bottled water), and it's stored underneath the panels in a reservoir that can hold 30 liters. Lastly, the water travels from the reservoir through a pipe to a faucet.

The arrays are customized based on the customer's needs, Friesen said. A typical Source for a home has two panels, while a school in Mexico City with 50 students has 10 panels. If a two-panel array harvested five liters of water daily, it would be enough for a family of three (if everyone followed the US Department of Health and Human Services' consumption recommendation).

To make sure everything is working properly, Zero Mass tracks the Sources' outputs using sensors installed in the arrays. The team is studying data points, like pH levels, temperature, and humidity, to maximize the amount of water each array produces and to improve future iterations of Source.

When asked about who Zero Mass' ideal customer is, Friesen said "everyone." The company has installed Sources everywhere from multimillion-dollar mansions in California to an orphanage in Lebanon. Duke Energy has also deployed panels in Ecuador, and Zero Mass received a USAID grant to install panels in refugee camps in Jordan and Lebanon in 2015. In an Arizona desert, the company recently put a system that pumps water at night for wild animals.

A Source array for wildlife in an Arizona desert.Zero Mass Water

When you compare Source's price to the cost of buying bottled water, the former is more affordable and sustainable over time. On the other hand, boiling poor-quality water to sterilize it is almost free. For those in low-income areas, Sources are pricey and would likely need to be bankrolled by humanitarian nonprofits.

Friesen added that maintaining the device is low-cost. Air filters need to be replaced every year, and mineral blocks need to be replaced every five years. (Both cost just a few dollars.)

"We want to perfect water for every person and every place," Friesen said. "Although I feel sheepish saying something that bold, I feel confident since the technology is [deployed] across a huge range of places and the fact that it's the best water you can get, it's independent of infrastructure, it's CO2-offsetting, and it pays back really quickly. The ultimate goal is for people to have a fundamental change in their relationship to water and have total independence around it anywhere on the planet."

Revolutionary glass building blocks generate their own solar energy

There’s a new building block in town, and it generates its own clean energy. Researchers from Exeter University developed new glass blocks that are embedded with small solar cells. Not only do the blocks generate energy, but they also provide thermal insulation and allow natural light to enter buildings.Called Solar Squared, the blocks are embedded during the manufacturing process with an array of optical elements that focus sunlight on tiny solar cells. The blocks are made to ensure maximum solar absorption, even in tricky urban areas.

“The modular design is completely scalable, and allows for seamless architectural integration,” according to an Exeter press release. “The streamlined nature of the technology enables it to be embedded in conventional construction materials, meaning that its applications are myriad.”

Professor Tapas Mallick and Dr Hasan Baig, along with IIB Research Commercialization Manager Jim Williams, hope their patent-pending design will revolutionize theconstruction industry.

Related: Tesla’s new solar roof is actually cheaper than a regular roof

“Deployment of standard solar technology is limited by the large area requirement and the negative visual impact,” said Dr Baig from the Environment and Sustainability Institute in Cornwall. “We wanted to overcome these limitations by introducing technologies that become a part of the building’s envelope. We now have the capability to build integrated, affordable, efficient, and attractive solar technologies as part of the building’s architecture, in places where energy demandis highest, whilst having minimal impact on the landscape and on quality of life.”

There are challenges, though.

Dr Baig says it’s difficult to communicate how the building product serves a dual purpose, and that expectations of price should reflect the same. “People tend to make comparisons with standard solar panelsfound on roof tops but it’s necessary to also include the value of the underlying building material in order to quantify the value proposition.”

For this reason, the group aims to ensure that Solar Squared will cost less than conventional glass blocks with the added cost of electricity. They are currently seeking test sites and investors – in case you know someone who can take this to the next level.

  

An ancient cathedral in England is getting solar panels

Mypower

Canon Celia Thomson bolts in the first solar panel on top of Gloucester Cathedral, in south west England.

For more than 1,300 years the site of Gloucester Cathedral, in the south west of England, has been a place of continuous worship. Rich in history, it is home to the tomb of King Edward II, who died in 1327. Now, it has become one of the oldest cathedrals in the world to have solar panels.

"The Church of England… has a campaign which is called Shrinking the Footprint, and it's a very ambitious campaign to reduce carbon emissions throughout the Church by 80 percent by 2050," Anne Cranston, Project Pilgrim manager at Gloucester Cathedral, told CNBC in a phone interview.

Commenting on the Shrinking the Footprint project, the Bishop of London, Richard Chartres, has previously said that the Church is "committed to mitigate the effects of climate change which will fall disproportionately on the poor and vulnerable in the world."

Solar power is becoming an increasingly important part of the planet's energy mix. In the U.S., for example, data from GTM Research and the Solar Energy Industries Association has shown that the solar industry there installed 7,286 megawatts of solar power in 2015, an increase of over 1,000 megawatts of solar photovoltaic installations compared to 2014.

Back in Gloucester, Cranston explained why solar was seen as a viable way of making the Cathedral a beacon for clean energy.

Chris Rose | Photographer's Choice RF | Getty Images

"We have bought clean energy for the past few years, but churches and cathedrals have the benefit of being west-east aligned and therefore a lot of us have these south facing roofs," she said. "It seemed somewhat of a gift if we could take advantage of it." Cranston went on to state that the Cathedral "will continue to go green, there is lots more that we need to do."

The installation is now complete and Monday saw the solar panels switched on, with the 38 kilowatt solar array set to help cut energy costs by 25 percent.

"From a green perspective, it'll save them about 16 tonnes of carbon dioxide … per annum," Ben Harrison, from Mypower, told CNBC in a phone interview.

Mypower oversaw the installation of the panels on the Cathedral's roof, and Harrison went on to explain that the carbon dioxide savings would be equivalent to planting several acres of woodland per year.

Harrison added that working on the project had proved to be "the opportunity of a lifetime. Very few people get the opportunity to go on the roof of Gloucester Cathedral, let alone be part of creating its future."

"In terms of the sustainability, the energy production, it's been extremely satisfying."