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Topic: SOLAR ENERGY ? - page 2. (Read 3751 times)

hero member
Activity: 532
Merit: 500
July 28, 2014, 09:25:00 PM
#73
If you can figure out how to install the panels yourself and then just hire an electrician to hook them up to the grid, you would save significant money.  Otherwise, if your numbers look like bluefirecorp's measured data, it will be a lot harder.
sr. member
Activity: 434
Merit: 250
July 28, 2014, 09:22:53 PM
#72
It doesnt cost anything to opperate.

low operating cost

ROI is 10 years
You also need to pay for the land that the solar panel is located on.

most solar panels go on rooftops though. it would be tough to get panels if you're living in an apartment complex, and there is no land to put it on in that case. so it's usually limited to homes, though i know there are some apartments that have panels.

i wonder if you could put the panels in your backyard, and use it as a rooftop.. that would serve two purposes, kind of like this:

member
Activity: 95
Merit: 10
July 28, 2014, 09:09:48 PM
#71
It doesnt cost anything to opperate.

low operating cost

ROI is 10 years
You also need to pay for the land that the solar panel is located on.
newbie
Activity: 21
Merit: 0
July 28, 2014, 10:22:14 AM
#70
I was pleasantly surprised that there are a lot of solar panels in Italy. Everywhere!
sr. member
Activity: 462
Merit: 250
July 28, 2014, 03:00:30 AM
#69
i think if you have enough money and you want to save for the next years by reducing costs than you should put some panels, it works well and save a lot of money for you by the time, if you have patience you should try
sr. member
Activity: 294
Merit: 250
July 28, 2014, 01:33:17 AM
#68
It doesnt cost anything to opperate.

low operating cost

ROI is 10 years
newbie
Activity: 14
Merit: 0
July 28, 2014, 01:29:39 AM
#67
It doesnt cost anything to opperate.
sr. member
Activity: 294
Merit: 250
July 28, 2014, 01:15:28 AM
#66
Its great, but those panels cost a lot to be put on the roof of a house just to save money etc.

Search for local
hero member
Activity: 826
Merit: 1000
July 28, 2014, 12:21:29 AM
#65
Its great, but those panels cost a lot to be put on the roof of a house just to save money etc.
sr. member
Activity: 294
Merit: 250
July 27, 2014, 11:12:37 PM
#64
Solar energy , Hydro energy are the best methods to save energy

you can buy solar set panel online

http://www.amazon.com/SHARP-Solar-Panels-Watts-Cells/dp/B00BBJUFHC

http://www.amazon.com/Grid-tie-Inverter-On-Grid-system-suitable/dp/B008E4GLL6

and many other site you may find on Google search but i suggest to use amazon website because its secure
hero member
Activity: 532
Merit: 500
Currently held as collateral by monbux
July 27, 2014, 11:56:19 AM
#63
I've done some research of my own in the solar energy solution looking to find a good way to save money but it seems it would only save me money in 20-30 odd years in the future which  is quite hard to believe.
hero member
Activity: 532
Merit: 500
July 27, 2014, 11:27:02 AM
#62
Solar energy shouldn't even be in the convo at the moment.  It is far to expensive up front and doesn't return your investment until way later of in the years.

I often see this posted on social media about how we need to convert roads to solar panels.  It is a great idea....however if we were to do that to just 1 state(larger state) the country would probably double in debt and its already hard to see us getting out of this whole(USA).  Think about redoing the world...
I thought you might find this December 2013 article interesting: http://www.computerworld.com/s/article/9244836/Solar_power_installation_costs_fall_through_the_floor

Particularly this part: "The cost of installing photovoltaic solar arrays has dropped to $3 per watt of electricity they produce - about the same as coal-powered plants cost to build ..."

So it sounds like the cost is quickly becoming less of a factor.
what about the amount of land required for each watt produced?  Land is not by any means cheap
Land cost is not an issue if we're talking about putting solar panels on your own roof.  In fact, doing so increases your home's value.

Obviously land cost matters for solar plants, but I think remote sites are usually chosen where land is good for little else and is thus cheap.
legendary
Activity: 2674
Merit: 2965
Terminated.
July 27, 2014, 11:15:27 AM
#61
The costs are getting much lower per year, I'm not sure what everyone is waiting for.
I don't think anyone is waiting around.  From that article: "As a whole, the U.S. installed 4.3GW of PV solar arrays this year, a 27% increase over 2012."  A 27% increase is a lot.  It takes time to ramp up manufacturing.  You can't just increase solar cell production by 100x in a year.  Besides, there's only so much demand.  It's not cost-effective (yet?) to replace existing power plants that work with solar plants, so demand is mostly going to come from the need for more electricity and from the need to replace old power plants that have reached the end of their useful life.  It also takes a lot of land area and of course the right climate to build a solar plant, so you can't just do it anywhere.
Well indeed you're right. But I want a higher growth actually. There is just not much being invested in it in my perspective.
hero member
Activity: 532
Merit: 500
July 27, 2014, 10:27:49 AM
#60
its good , for everone , and you can earn on it Cheesy

Actually, unless you're doing a huge amount of work yourself, you'll lose out on it. Installed solar panels are ~$3-5 dollars per watt on property you already own. ROI is over 20 years at current electricity prices (averaged out priced throughout the entire USA). Solar panels have a 15-25 year life-span, so you're playing the numbers game, and odds are against you.
Here's an example from a quick google search:

http://www.wholesalesolar.com/gridtie.html

It looks like you can buy the equipment for $1.50 to $2 per watt, depending on the size of the system, and it comes with a 25-year warranty.  I'm not sure how much installation would cost, but I have a hard time believing that it would cost more than a few thousand.  It looks like federal tax credits can also knock off up to 30% of the installation cost.  Let's say you get the system that produces about 866 kWh/month for $10,300.  Let's even say it costs as much to install as the panels cost.  So let's figure $21,000 total for the system, which would be a little less than $15,000 after tax credits.  I hate it when they say "up to" 866 kWh/month, so let's round that down to 800 to be conservative.  Over 25 years, you should get 800*12*25=240,000 kWh out of it.  Let's say you pay $0.08/kWh, which is also fairly conservative.  You'd save $19,200.  So you're already up at least $4,000 over the cost of the system, and that's not even taking into account rising electricity costs over time.  So if you have the cash, it's probably worth it even now, but the savings isn't huge yet.

Great job, but no. During winter months, your "up to" 866 kWh/month goes down to ~100-200 kWh / month. Also, as the solar cells age, they become less efficient.

"Monthly Output based on 5 sun hours per day" - Wow, that's a LOT of sun time every day. My town has a solar array installed, and all the statistics are available publicly, so it helps quite a bit estimating my ROI. Here's the current stats on a 2 MW solar farm:

July is one of the best months, so we're just hitting 5 hours a day. But look at months like December / January. That's around an hour average of sun per day!

Your math also doesn't include maintenance of kit, replacing failing kit (sure, the equipment is under warranty, but the labor to remove it, ship it back, get a new piece isn't), any fees your carrier has associated with tying your solar system to the grid.

As opposed to a decent stock portfolio in which I have a 10% ROI per year. Hmm.
Ok, fair enough.  I was hoping to compensate for overestimates by being conservative in my calculations, but apparently that's not enough.  Thanks for sharing actual stats.  It's so hard to know sometimes.  Where do you live?  And do you know how efficient those solar cells are supposed to be?

There's still a chance that a solar array would be worth it if energy prices go up significantly, but it does look like it's a gamble, at least until efficiencies double or so.
newbie
Activity: 50
Merit: 0
July 26, 2014, 06:46:24 PM
#59
Solar energy shouldn't even be in the convo at the moment.  It is far to expensive up front and doesn't return your investment until way later of in the years.

I often see this posted on social media about how we need to convert roads to solar panels.  It is a great idea....however if we were to do that to just 1 state(larger state) the country would probably double in debt and its already hard to see us getting out of this whole(USA).  Think about redoing the world...
I thought you might find this December 2013 article interesting: http://www.computerworld.com/s/article/9244836/Solar_power_installation_costs_fall_through_the_floor

Particularly this part: "The cost of installing photovoltaic solar arrays has dropped to $3 per watt of electricity they produce - about the same as coal-powered plants cost to build ..."

So it sounds like the cost is quickly becoming less of a factor.
what about the amount of land required for each watt produced?  Land is not by any means cheap
legendary
Activity: 882
Merit: 1000
July 26, 2014, 06:40:08 PM
#58
its good , for everone , and you can earn on it Cheesy

Actually, unless you're doing a huge amount of work yourself, you'll lose out on it. Installed solar panels are ~$3-5 dollars per watt on property you already own. ROI is over 20 years at current electricity prices (averaged out priced throughout the entire USA). Solar panels have a 15-25 year life-span, so you're playing the numbers game, and odds are against you.
Here's an example from a quick google search:

http://www.wholesalesolar.com/gridtie.html

It looks like you can buy the equipment for $1.50 to $2 per watt, depending on the size of the system, and it comes with a 25-year warranty.  I'm not sure how much installation would cost, but I have a hard time believing that it would cost more than a few thousand.  It looks like federal tax credits can also knock off up to 30% of the installation cost.  Let's say you get the system that produces about 866 kWh/month for $10,300.  Let's even say it costs as much to install as the panels cost.  So let's figure $21,000 total for the system, which would be a little less than $15,000 after tax credits.  I hate it when they say "up to" 866 kWh/month, so let's round that down to 800 to be conservative.  Over 25 years, you should get 800*12*25=240,000 kWh out of it.  Let's say you pay $0.08/kWh, which is also fairly conservative.  You'd save $19,200.  So you're already up at least $4,000 over the cost of the system, and that's not even taking into account rising electricity costs over time.  So if you have the cash, it's probably worth it even now, but the savings isn't huge yet.

Great job, but no. During winter months, your "up to" 866 kWh/month goes down to ~100-200 kWh / month. Also, as the solar cells age, they become less efficient.

"Monthly Output based on 5 sun hours per day" - Wow, that's a LOT of sun time every day. My town has a solar array installed, and all the statistics are available publicly, so it helps quite a bit estimating my ROI. Here's the current stats on a 2 MW solar farm:



July is one of the best months, so we're just hitting 5 hours a day. But look at months like December / January. That's around an hour average of sun per day!

Your math also doesn't include maintenance of kit, replacing failing kit (sure, the equipment is under warranty, but the labor to remove it, ship it back, get a new piece isn't), any fees your carrier has associated with tying your solar system to the grid.

As opposed to a decent stock portfolio in which I have a 10% ROI per year. Hmm.
hero member
Activity: 532
Merit: 500
July 26, 2014, 02:03:42 PM
#57
its good , for everone , and you can earn on it Cheesy

Actually, unless you're doing a huge amount of work yourself, you'll lose out on it. Installed solar panels are ~$3-5 dollars per watt on property you already own. ROI is over 20 years at current electricity prices (averaged out priced throughout the entire USA). Solar panels have a 15-25 year life-span, so you're playing the numbers game, and odds are against you.
Here's an example from a quick google search:

http://www.wholesalesolar.com/gridtie.html

It looks like you can buy the equipment for $1.50 to $2 per watt, depending on the size of the system, and it comes with a 25-year warranty.  I'm not sure how much installation would cost, but I have a hard time believing that it would cost more than a few thousand.  It looks like federal tax credits can also knock off up to 30% of the installation cost.  Let's say you get the system that produces about 866 kWh/month for $10,300.  Let's even say it costs as much to install as the panels cost.  So let's figure $21,000 total for the system, which would be a little less than $15,000 after tax credits.  I hate it when they say "up to" 866 kWh/month, so let's round that down to 800 to be conservative.  Over 25 years, you should get 800*12*25=240,000 kWh out of it.  Let's say you pay $0.08/kWh, which is also fairly conservative.  You'd save $19,200.  So you're already up at least $4,000 over the cost of the system, and that's not even taking into account rising electricity costs over time.  So if you have the cash, it's probably worth it even now, but the savings isn't huge yet.
member
Activity: 70
Merit: 10
July 26, 2014, 12:26:49 PM
#56
If I could I get myself a lot of pannels.
legendary
Activity: 882
Merit: 1000
July 26, 2014, 07:49:14 AM
#55
its good , for everone , and you can earn on it Cheesy

Actually, unless you're doing a huge amount of work yourself, you'll lose out on it. Installed solar panels are ~$3-5 dollars per watt on property you already own. ROI is over 20 years at current electricity prices (averaged out priced throughout the entire USA). Solar panels have a 15-25 year life-span, so you're playing the numbers game, and odds are against you.
member
Activity: 61
Merit: 10
July 26, 2014, 07:43:57 AM
#54
its good , for everone , and you can earn on it Cheesy
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