Introduction to Solar Photovoltaics

[kricotas]

thank you!

[xxxpole26xxx]

Sukate qui!

[wariorx1z]

what the hell they need to start using this stuff if global warming is such a big deal

[rebelliouseoagj]

REAL Free energy technology exists!But the Establishment doesn't want ppl to know this,Get the blueprints for a real Magnet motor free enegy machine at LT-MAGNET-MOTORdotCOM ,Start the energy revolution!

[kricotas]

i did mesure with multimeter rates at

20.8 v !

[henrykay01]

I invented a breakthrough source of energy, which contradicts the law of conservation of energy. I have a PROOF that there are electrodynamic phenomena which contradict the law of energy conservation. It will cost about $1200 to make a 6 kW generator in mass production. Value of the energy produced yearly about $5400. I am looking for $300 000 for a prototype and for $3M for patents.

H. Tomasz Grzybowski

tel. +48-512-933-540

[windymac]

dzgfdg - You need to educate yourself before authorising on a subject. First read about feed in tariffs. Now get your calculator out. Deduct 12,500 from 25 x 850. That's how much the householder with a 2.4kw system will make on the feed-in tariffs. Now you need to add to that the 20-40% saving on their electricity bills (that's indefiniteiy by the way.) Add the fact that the value of their property increases by the cost of the installation. There are some idiots here and you're one of them.

[kricotas]

@windymac

hi!

question? i have bought 85 watts solar panel

im trying to intend to buy slowly solar panels i dont have that much money

i di buy sunforce charger Cont, ineverter 1500

18 bateries

how many solar panels i sould stil buy?

thank you

[UKSlimming]

@kricotas Hi Kricotas. I'm not familiar with the products you have but if your inverter is rated 1.5kW then you could go to about 20 x 85W solar modules (panels.) The suitability of your batteries depends on their collective capacity rather than their number.

[dee756]

@kricotas when we got them i was very confused about how many etc, the easiest way to work out how many you'd need is when you receive your electricity bill somewhere on the bill it should show how many kW per day you are averaging out to using, this way it is easier to work out "at their top working rate" how many panels you would need! Say you use 20 - 28 kW per day , most panels are about 2. something, so you would need about 18 - 20 panels to get close to covering your bill!

[kricotas]

@windymac

how is the calculations?

[henrykay01]

I invented a breakthrough energy source which violates the law of energy conservation. I have a PROOF that there are electrodynamic phenomena violating the law of energy conservation. I am looking for $30000 for a prototype and for $3M for patents. In mass production it will cost $1200 to make a 15 kW generator, value of energy produced YEARLY about $10000.

H. Tomasz Grzybowski

tel. +48-512-933-540

[pc4nae]

Every hour enough energy reaches the earth for to meet the need for one year?

Yet in a video titled “How Photovoltaic Solar Cells Work”, they state every minute enough energy reaches earth to meet the need for one year. So which is it, you can’t both be right. Maybe neither of you are right? I don't know who to believe these days....maybe I'll just make up my own reality...

[altagolfer]

My question is - what if a hail storm were to damage the panels? Who would replace them, and at who's expense?

[pacificcresttrans]

In the past 20 years, the demand for solar energy for domestic energy purposes has grown by up to 25% per year. With energy costs constantly increasing, governments are looking to solar energy as a more viable option to meet a growing need for energy. Pacific Crest Transformers has more information on this. You can also read whitepapers and articles on alternate energy at the Pacific Crest Transformers website

[Sinncrow]

Really good video

[MrEnergyCzar]

Great video...I converted my home to a net-zero solar powered home that uses no oil or gas...I made a video about it called, "Preparing for Peak Oil"....

[henrykay01]

I invented a breakthrough source of energy that contradicts the law of conservation of energy. I have a PROOF that there are electrodynamic phenomena that contradict the law of conservation of energy. I am looking for $6M for a prototype and patents.

H. Tomasz Grzybowski

tel. +48-512-933-540

[robz40]

10sq metres mentioned x1000Kwh/year x10%PV efficiency=1000kwh/year or 3kwh per day

it is not enough I am afraid.

a washing machine rated 2KW would use in 1 hour by definition 2kWx1hour = 2kWh

They will never convince me to install those PV at the cost of £6000-8000

Waste of time and money guys

[robz40]

The WM was an example.

google

Common Wattage of Household Appliances

I personally fail to see why many people should use PV to supplement their electricity. Why spend thousands on PV when they are connected to the grid anyway?

[mattkrunchie]

@robz40

Simple - to use the space on your roof to collect energy. The source of the energy coming from the grid has many hidden costs and in the U.S is heavily subsidized. I believe we are going to have to pay for these hidden costs in the future whether it's health care for kids with asthma ( this is a huge problem now in the city I live in ) as a result of pollution , rising sea levels causing people to move or extreme weather patterns to name a few.

[mattkrunchie]

@robz40

Also there are huge efficiency losses in the grid 50% is lost just in transmission and if you count the energy used to construct and operate the power plant producing the energy whether it be Nuclear or Coal its more like %80 - %90 ! is lost.

[robz40]

Your estimates on efficiencies and losses are not real, I wonder where you got them from. PV is the most expensive way to produce electricity and it needs to be supported by conventional or nuclear power anyway. But if you're happy to spend your 1000s on your roof... be my guest.

[mattkrunchie]

@robz40 So, in short having the Generator ( Solar PV ) in close proximity to the load ( Washing Machine, Air Con, etc..) will reduce energy loss in transmission. PV is not cheap but it is one of the few things you can install on your home which has the potential to pay for itself.

[djbrian24]

@robz40 PV allows you to generate clean electricty which you sell back to the power company for "store credit." With the 30% uncapped federal tax credit, state rebates, and low financing options, payback can be as low as 7 years. What's the payback on your car? PV is one thing you can actually buy that adds value, pays back, and helps the environment. Most PV manfacturers offer a 25 year warranty, when in fact solar will produce electricity for you for 35-40 years. It just makes sense.

[robz40]

If it makes sense you are welcome to install them but remember: subsidies distort the real market and pass the costs on someone else and I can provide you with real data where PV became obsolete after 9 years. Warranties are only worth the duration of the company that can honour them.

[djbrian24]

You're exactly right, but tax incentives are a way of life. Why should my federal tax dollars pay for a TSA employee at an airport in Idaho when I live in Alabama? The previous solar slump is a thing of the past. As we continue our dependence on foreign energy, rather than capitalize on a huge opportunity to become the leading exporting nation of solar and other forms of alternative energy, we'll continue to slip further into debt and become vulnerable to attacks, in more ways than one.

[robz40]

You a few good points but the subject is rather vast to be discussed just with a few lines but keep this in mind. Solar and wind energy are unreliable therefore they need the grid and conventional or nuclear power anyway to back them up. These renewables DO NOT add power to the system, they only save a bit of fuel.

For example 40-60bln$ on PV lasting 30 years (and they don't) only allow to save 30x0.01x7bln=2bln$ in nuke fuel + installing the nuke power station anyway. 40-2=38=bad deal

[mikecccc987]

Fortunately, isolated solar panels are very cheap and continuing to drop in price.

[robz40]

@mikecccc987 It might be surprising but PV is uneconomical even if the PV modules on the roof are free. Why? Because they constitute about 1/2 of the total cost of a PV system.

[tomyloveu]

bla bla bla cheap the pannel we all love but cost???

[enelvideo]

we love the sun !!!

[scientificallygreene]

Hey, check out my website at ScientificallyGreener(Dot) com and get all the new and improved Equipments to build or buy your own solar and wind energy systems ScientificallyGreener(Dot) com is a website that sells the most modern environmental products available

[ebookfantasy09]

You Can Build Solar Panel For Under 100 Dollars!!

You must copy, past this link on your browser adress and replace the word "point" with the point of keybords: "."

tinyurlPOINTcom/y8mxzlq

[pegobuilders]

Sunlight has influenced building design since the beginning of architectural history

[lunchboxme1]

she sounds hot

[ulturn]

If economy of scales is used, it will cost up 10 times cheaper. That again is a matter of market competition, good product promotion and therefore higher demand, and of course, governments' tax brakes and eliminaton of barriers.

[abmod01]

I built my own Solar Panels for under $100 which are currently powering my 1700 Square Foot home using the plans at:

ambigrid-review.blogspot(DOT)c­om

[imtiyazmatrix]

is cost still possible for large public?

[vsantana86]

nope. the technology is still pretty new. initial cost right now is one of the disadvantages. But not in the long run.

[jrgenter]

I love the sun

[moviedude22]

what's the hold up? seems like this should be standard operating procedure by now

[youtubasoarus]

@moviedude22 -- The problem is profit and conflicting interests in what is profitable. If everyone was using solar power from the sun, nobody would pay energy companies, who make billions, if not trillions of dollars per year.

[geckologicusa]

@moviedude22 it will be standard procedure. Many Developers are now implementing solar panels on their suburban developments. It is all about the de-centralized "smart grid" :)

[BourbonRealty]

Highly informative, Thank you!

[gdolim8]

That's truly amazing! I slashed my electric bill in half! look here: solar.xfollow.me (Copy to your browser's address bar)

[williamsharkey]

"Any Southern Facing roof" -- Northern-Hemispheric-centrism if I ever heard it.

[mcgrueser]

@williamsharkey Very intuitive but didnt you notice that this was a video made for the uk....thought you would've picked up on that given your powers of observation!

[hrss]

It's so nice and learning

[franciscoceruti]

it´s 800 Wh (0,8 KWh) what she means...

1000 KWh (x 5 hours average of sun in a sunny day) is what you consume in 2 months or more (I checked my bill and in my house I used 111 KWh for the MONTH and 660 KWh in my office) !!!

[GerrardMcKillen]

No 800 kWh per year per kW of installed panels is what is meant.

[bristolsurfer]

Why aren't the UK government making all new builds have to use green energy like this to meet there so called GREEN deadline?

And helping people in the UK to adapt there homes?

Maybe they can't think of what TAX to add to it??!!

[scabies]

"Maybe they can't think of what TAX to add to it??!!"

LOL, yeah. That's the same everywhere else though.

[siobbunny]

Shapeshifter, One, best backing track for this I reckon. Awesome! Nice one guys.

[KeeRaN77]

is the this D and AD?

[solarshingles]

Very nice video!

p.s.

and very nice English, too!