Grid-tied solar

   / Grid-tied solar #851  
Price and availability are not important? I think they are the most important thing. The guy who invents something is important, but the guy who actually makes it good and cheap gets my appreciation and money.

The periodic table has not sprouted any new elements . The price of gold is not getting cheaper due to increased demand.
 
   / Grid-tied solar #852  
It is.
The oil was known to be there and accessible. It was a matter of politics to drill and how much to produce. Right now the existing resources are being pumped faster to drop the price of oil. To reduce the income of middle east terrorist organizations.

I used to do a lot of contract work for gas and oil in past 25 years. New sources are hard to find and as a rule are expensive to develop. There are some hits and lot of misses. I worked on several promising projects that at the end made little money or barely broke even.
 
   / Grid-tied solar #855  
Everyone please go argue in the other solar thread. Try to keep this thread simple about a guy who wanted his own system to offset his utility costs, while being honest about the costs involved with the installation.

Thanks.
 
   / Grid-tied solar #856  
The periodic table has not sprouted any new elements . The price of gold is not getting cheaper due to increased demand.

Some folks may disagree with you. The periodic table has always been under revision.

Definitely the sand!
 
   / Grid-tied solar
  • Thread Starter
#857  
Some folks may disagree with you. The periodic table has always been under revision.

Definitely the sand!

I read "The Disappearing Spoon" a while back. It covers the history of the periodic table. Some rare/odd elements were predicted to exist before they were found. It has been a continuing process over the past 150 years or so.

I do think that battery advances depend more on getting better performance out of the elements we already have, perhaps through nanotechnology reducing the material quantities needed. That would boost energy density and require fewer raw materials.

What is probably unique now is there is a pent-up market demand for better battery technology, or some other storage means. That demand attracts capital, talent and research dollars. I don't think we are done yet.
 
   / Grid-tied solar #858  
Only if you think $17 a barrel is expensive. Lol. HS

That is a dream only. Fracking is very expensive by the fact that typical fracked well production fall off about 70% in a year two and stops producing in about year three. To keep the production up you have to drill and drill and drill. There is no way anybody will keep drilling (get financing) when oil drops below $50/barrel. I think the break even point is rather 65/barrel. To keep fracking going you need oil at rather 100/barrel level to get financing. Production from conventional wells typically drops only 2-5%/year.
 
   / Grid-tied solar #859  
That is a dream only. Fracking is very expensive by the fact that typical fracked well production fall off about 70% in a year two and stops producing in about year three. To keep the production up you have to drill and drill and drill. There is no way anybody will keep drilling (get financing) when oil drops below $50/barrel. I think the break even point is rather 65/barrel. To keep fracking going you need oil at rather 100/barrel level to get financing. Production from conventional wells typically drops only 2-5%/year.
I don't think you realize how fast this technology has changed, all your issues are talking points from 10 years past. I used $17 for a reason. The latest technology doesn't even use water to frack. HS
 
   / Grid-tied solar
  • Thread Starter
#860  
EVs and Battery Cost Predictions and Improvements | The Energy Collective

Some article highlights:


Average battery pack costs have fallen 14 percent per year across the industry, which has seen sales volumes double annually in recent years. EV battery packs now cost $410 per kilowatt-hour (kWh) of storage capacity on average (with a 95 percent confidence interval ranging from $250–670 per kWh).

The cost of batteries produced by market leading firms, such as Renault-Nissan and Tesla Motors, however, have fallen further, to an average of $300 per kWh, according to the study.

At $300 per kWh, electric vehicles can begin to compete economically with traditional petroleum-fueled internal combustion engines when gasoline costs $3-5 per gallon (€0.73-1.22 per liter), according to separate analyses from global consulting firm McKinsey and the International Energy Agency. The U.S. Department of Energy (DOE) has set a target of $150 per kWh for battery electric vehicles to become broadly competitive and see widespread market adoption.

In the near-term, the researchers believe economies of scale, improvements in cell manufacturing and learning-by-doing in pack integration, rather than advancements in cell chemistry or other R&D breakthroughs, will help manufacturers continue to produce cheaper batteries.


At $150 per kwh, the 40 kwh I would like to have would cost $6,000. Throw in some necessary control hardware for another $1,500. $7,500 total. That's not bad. It is competitive with the cost of getting grid power in many cases.
 

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