Solar energy is poised for an unforgettable year
Source: Washington Post
New statistics just released by the U.S. Energy Information Administration suggest that in the coming year, the booming solar sector will add more new electricity-generating capacity than any other including natural gas and wind.
Read more: https://www.washingtonpost.com/news/energy-environment/wp/2016/03/02/solar-energy-is-poised-for-an-unforgettable-year/
Maybe all is not lost in regards to preventing global warming......
burfman............
kentauros
(29,414 posts)Kelvin Mace
(17,469 posts)I am in NC and installed an array in October. The only part of the rules I don't like is that the tax credit expired at the end of last year and that once a year, my account "resets" to zero if I am running a surplus of power. So, each month I produced more than I use, the excess rolls over to the next, until May 31st, at which point any surplus is lost.
jpak
(41,759 posts)n/t
Kelvin Mace
(17,469 posts)I heard about Nevada, the practically killed the whole solar industry in the state. But I though they were the first.
William Seger
(10,779 posts)... where you buy one or more panels on a farm that feeds metered power into the grid, and then you get a credit (or even a profit) on that on your power bill. Seems to be a lot more sensible than installing one on my house, for a LOT of reasons.
2pooped2pop
(5,420 posts)If the people can do it themselves, how the hell will the billionaires make money on it/
Botany
(70,581 posts)"The American Legislative Exchange Council, which drafts model bills for right-wing state legislators
and receives financial support from fossil fuel interests, has campaigned for rates like those the
commission adopted, and, according to Greenpeace, NV Energy was at one time an ALEC member."
Sunlei
(22,651 posts)the extra evaporation will do the climate good and if they use porous holding the water seeping would help replenish the water table.
Mine/oil/fracker Corps should pay for that out of their fabulous profits.
mahatmakanejeeves
(57,600 posts)Energy will have to be added to the system to move water from a low place to a high place.
Like this, for example: Thermosiphon
Or a wind mill can power a pump. But you will have to power this movement somehow.
Once the seawater is at this high place, if it evaporates, there will be a bunch of salt on the ground. That will have to be removed.
If the seawater seeps into the soil, the water table will no longer contain fresh water, but a mixture of fresh water and sea water. Is that a good idea?
Sunlei
(22,651 posts)We mine salt from ancient seabeds. Seawater contains many other minerals that could be put to good use.
Freshwater naturally floats above seawater in groundwater table near the sea. That's how we have freshwater wells on islands and in coastal communities.
Evaporates could also be caught on fog nets, or covers- this is fresh water that could be passively collected for crops or drinking.
burfman
(264 posts)Ocean thermal energy conversion
Wikipedia entry: https://en.wikipedia.org/wiki/Ocean_thermal_energy_conversion
It works, but I think it is not inexpensive......
cprise
(8,445 posts)They can store renewable energy as air pressure, and reclaim it using turbines. Its like the reverse of a hydroelectric reservoir.
Thermosiphon would be subject to large thermal losses without vast amounts of insulation... wouldn't be efficient enough.
FLPanhandle
(7,107 posts)If solar can be competitive in a era of cheap oil, it could dominate when oil is expensive again.
Kelvin Mace
(17,469 posts)But installing it is expensive, around $4-$5 a watt.
tabasco
(22,974 posts)An el cheapo 45-watt system costs $200 (no batteries included).
$1 a watt? What am I misunderstanding here?
If I DIY install, why would that add to the cost?
Just trying to learn here. I want to go with a small residential system someday soon.
ON EDIT: I see some panels on eBay for about $120 for 100W but that includes just the panel.
Kelvin Mace
(17,469 posts)I was referring to the panel cost, sorry, I should have been clearer. You have to add wire, inverter(s), mounting hardware, and an interface module to monitor the array.
Once you get into that, costs creep up to around $2-$3 a watt. A professional install is $4-$5. I don't recommend a dIY system unless you REALLY know what you are doing, meaning you are comfortable with the carpentry needed to install the hardware (roof mounting looks easy, but you done wrong and your roof will leak), and the electrical expertise, since you can actually electrocute yourself if you are not careful. Also, installation must meet building and electrical code standards, and will require an inspection by your city or county. There are permits that must be obtained and forms properly submitted to the utility. Failure to get any of this done will result in the system not being approved.
Now, can you get a little DIY 45 watt kit and put it in yourself? Possibly, but the smaller the system, the greater the cost per watt.
Here you can see the price for kits which include pretty much all you need starting at around $5500 plus shipping for 2.6kW array (please note, I provide this link for illustration only, I do not have any connection to this site or know anything about their customer service).
Depending on where you are and the mounting setup, a 2.6kW array would produce 9-12 kWhs of power each day, in full sun light. (For best results panels should face South, and have no shade) The closer you are to the equater, the more sunlight you will generally get which converts to electricity.
Assume 10kWhs from this system, that comes out to about a third of the daily consumption of an average American house. Electricity averages about 11 cents a kWh from the utility, so this system would produce about $3.00+ a day's worth. Of course cloudy days, rainy days, snowy days will cause production to drop.
My array was switched on in October and has averaged about 13.5 kWhs so far, but the number has been rising sharply as sunnier days have arrived. So far this month I have averaged 29kWhs a day.
To give you a comparison, the 45 watt panels you mention would produce under nominal conditions 0.21kWhs of power a day. A 100 watt system would produce 0.48kWhs (I am assuming daylight time based on my location in central NC). A single 60w equivalent LED bulb burns 9 watts an hour, so you could run such a bulb for 34 hours and 53 hours respectively. A CFL bulb would burn for half that time, and an old fashion incandescent would burn for 3.5/8 hours (you can see why LED bulbs are the way to go).
Now the prices we are discussing for all of this does not include any tax credits. The Federal credit of 30% is still good until the end of this year. My state had a 35% credit, but it expired at the end of last year. Together, that translated into a 65% discount on the cost of my system. Your credits may vary depending on your tax bill and state.
Hope this helps clarify my muddy point.
(You can see my array here: https://enlighten.enphaseenergy.com/pv/public_systems/h6KS723670/overview )
tabasco
(22,974 posts)I have an electrician friend who has installed solar systems who would help me out. I just need to save a few bucks to get the hardware.
Kelvin Mace
(17,469 posts)Just a few suggestions. If you plan to start with a small array and add to it as your budget allows, use microinverters instead of a single invereter. A single inverter is cheaper, but is generally sized for your array, and if you want to expand it in the future, you have to buy a bigger inverter. Microinverters are added to each panel, costing a bit more, but allowing you to expand in the future and to more efficiently monitor and control panels individually, in some cases down to the cell level, affording you less loss of power due to resistance loss.
Good luck!
Yo_Mama
(8,303 posts)So oil prices and solar generation are logically independent.
tabasco
(22,974 posts)There are more than 1,000 oil burning electricity plants in the U.S., but they only produce about 1% of the country's electricity.
https://www.washingtonpost.com/graphics/national/power-plants/
rladdi
(581 posts)have waged a war on solar energy and also wind energy. Several Republicans states push back on solar energy, taxing home owners that used it. Forcing out solar energy manufacturing, as in AZ. IN AZ, Fl, and OK they ban using solar energy or tax it so high it not affordable to use. Much of this is the results of the Koch bros. attack on solar energy and Republican controlled states enforcing that.
The Koch Bros are stuck back a century, being so old and senile, they cannot see the future of American and this world.
The sooner tax payers and voters realize what the GOP stands for, this pushback will continue.
Response to burfman (Original post)
Blue State Bandit This message was self-deleted by its author.
AxionExcel
(755 posts)This would be great for America,
you you can bet the Repubes will
do all they can to thwart it.
Javaman
(62,534 posts)and the most I've paid for electricity is .50 cents. that was the prorated amount in the very first month after we switched over.
I run everything in my house on electricity except my heater which is still on natural gas. I'm looking into an getting an electric heater/ac unit soon.
Kelvin Mace
(17,469 posts)and what part of the country are you in. I have a 7.15kW array and live in NC. I am grid-tied and last months bill was offset 50% by solar, also counting my driving to work in my Leaf. This month I may generate a surplus.
ffr
(22,671 posts)Just as every Republican before him has done. They're all in the pocket of big oil polluters.
47of74
(18,470 posts)He even had one of the solar companies come out and do a survey. He's got enough space for a good sized array on the farm.
bananas
(27,509 posts)NickB79
(19,258 posts)And the existing systems are largely coal and natural gas fired plants, with no plans to retire them anytime soon. At best, we're converting older coal-fired plants to natural gas, which may or may not actually be better for the environment depending on how much methane escapes when we frack for it.
For example, if we used 600 GW of power in year X, and 10 years later we were using 650 GW of power but 30 GW of the new capacity was from solar, we're still adding massive amounts of carbon to the atmosphere from all the previously built fossil fuel capacity.
We aren't going to stand a chance at even slowing climate change until we start actually shutting down and replacing all the old, coal and natural gas fired plants with solar and wind. This is a point we have not reached yet.