Then UC Berkeley buitl somehting called a Damital 30-40 years ago to harvest energy from ocean waves/current. Just wasn't const effective.
A few places around the world do haverest energy from ocean waves. But like solar and wind it's unperdicatble and the ocean water is highly corrisove.
Then UC Berkeley buitl somehting called a Damital 30-40 years ago to harvest energy from ocean waves/current. Just wasn't const effective.
A few places around the world do haverest energy from ocean waves. But like solar and wind it's unperdicatble and the ocean water is highly corrisove.
Moving things with waves always felt like a bad idea to me. Waves are very inconsistent, it might be calm, it might be storm, Murphy's law says you'll never get it right.
Tidal energy seems much more practical (ie. huge volumes of water being moved around by the moon). On any coastline there's thousands of inlets and coves that fill up with water then empty themselves twice a day. You can generate in both directions so that's four electricity generation cycles/day.
There not eneough energy there to make it worthwile.
Lot of water for only 800 watts for 4 hours.
The amount of water needed to produce 800 watts of electricity to power an 800 watt light bulb continuously for 24 hours is, (and lets make it 100% efficient so there's no energy loss) with a height difference of 10 feet/3 m is....... ready for this ....... over 600,000 gallons/2271247 liters. That's the amount of water 25-30 backyard swimming pools.
We would latterly have to build a reservoir the size of the ocean and then move all of the water in the ocean up 10 feet to provide enough power for the world for one year.
Have any of you done the calcualtion to figure out how much water and at what height it takes to continually produce 800 watts of electricity for one day? It's a simple math problem.
...
So while in theory all of the ideas for getting power from water might sound good, the math and physics just get in the way. If only there was a way we could break the laws of physics.
Next Gen nuclear is the only viable solution we know of.
Then UC Berkeley buitl somehting called a Damital 30-40 years ago to harvest energy from ocean waves/current. Just wasn't const effective.
A few places around the world do haverest energy from ocean waves. But like solar and wind it's unperdicatble and the ocean water is highly corrisove.
Moving things with waves always felt like a bad idea to me. Waves are very inconsistent, it might be calm, it might be storm, Murphy's law says you'll never get it right.
Tidal energy seems much more practical (ie. huge volumes of water being moved around by the moon). On any coastline there's thousands of inlets and coves that fill up with water then empty themselves twice a day. You can generate in both directions so that's four electricity generation cycles/day.
The amount of water needed to produce 800 watts of electricity to power an 800 watt light bulb continuously for 24 hours is, (and lets make it 100% efficient so there's no energy loss) with a height difference of 10 feet/3 m is....... ready for this ....... over 600,000 gallons/2271247 liters. That's the amount of water 25-30 backyard swimming pools.
We would latterly have to build a reservoir the size of the ocean and then move all of the water in the ocean up 10 feet to provide enough power for the world for one year.But you don't have to store the amount of energy for one year. The hydro storage is only there to serve as a temporary buffer to smooth out the differences between supply and demand. Also 3 meters is a bit low. Creating a lake which is 5 to 10 meters above sea level is certainly doable.
QuoteThere not eneough energy there to make it worthwile.
Works and is worthwile since 1966
https://fr.wikipedia.org/wiki/Usine_mar%C3%A9motrice_de_la_RanceQuoteLot of water for only 800 watts for 4 hours.That's OK, the ocean is filled with a lot of water.
The amount of water needed to produce 800 watts of electricity to power an 800 watt light bulb continuously for 24 hours is, (and lets make it 100% efficient so there's no energy loss) with a height difference of 10 feet/3 m is....... ready for this ....... over 600,000 gallons/2271247 liters. That's the amount of water 25-30 backyard swimming pools.
We would latterly have to build a reservoir the size of the ocean and then move all of the water in the ocean up 10 feet to provide enough power for the world for one year.But you don't have to store the amount of energy for one year. The hydro storage is only there to serve as a temporary buffer to smooth out the differences between supply and demand. Also 3 meters is a bit low. Creating a lake which is 5 to 10 meters above sea level is certainly doable.It is doable yes, but look at how little elcetricty would be producesd. The public would not invest in a system that won't pary for itself until they are nearly dead.
A recent news report of a fire in a Tesla which killed two people has highlighted the issue of lithium battery safety. Now, we all know that 18650s have to be treated with some care as shorts can have nasty consequences. However, it occurs to me that the risk of a short in an electric car is hundreds or thousands of times higher than that in a drill, torch or laptop owing to the sheer number of cells used. It only takes one cell to short, and the whole pack can go up.
So, at what number of cells does the shorting risk become unacceptable?
A recent news report of a fire in a Tesla which killed two people has highlighted the issue of lithium battery safety. Now, we all know that 18650s have to be treated with some care as shorts can have nasty consequences. However, it occurs to me that the risk of a short in an electric car is hundreds or thousands of times higher than that in a drill, torch or laptop owing to the sheer number of cells used. It only takes one cell to short, and the whole pack can go up.
So, at what number of cells does the shorting risk become unacceptable?
You know that there's 17 automobile fires per hour in the USA, right? That four people die per week as a result?
https://www.nfpa.org/Public-Education/By-topic/Property-type-and-vehicles/Vehicles
The amount of water needed to produce 800 watts of electricity to power an 800 watt light bulb continuously for 24 hours is, (and lets make it 100% efficient so there's no energy loss) with a height difference of 10 feet/3 m is....... ready for this ....... over 600,000 gallons/2271247 liters. That's the amount of water 25-30 backyard swimming pools.
We would latterly have to build a reservoir the size of the ocean and then move all of the water in the ocean up 10 feet to provide enough power for the world for one year.But you don't have to store the amount of energy for one year. The hydro storage is only there to serve as a temporary buffer to smooth out the differences between supply and demand. Also 3 meters is a bit low. Creating a lake which is 5 to 10 meters above sea level is certainly doable.It is doable yes, but look at how little elcetricty would be producesd. The public would not invest in a system that won't pary for itself until they are nearly dead.That depends on whether hydro storage is cheaper or more expensive compared to batteries. I'm not talking about production here.
A recent news report of a fire in a Tesla which killed two people has highlighted the issue of lithium battery safety. Now, we all know that 18650s have to be treated with some care as shorts can have nasty consequences. However, it occurs to me that the risk of a short in an electric car is hundreds or thousands of times higher than that in a drill, torch or laptop owing to the sheer number of cells used. It only takes one cell to short, and the whole pack can go up.
So, at what number of cells does the shorting risk become unacceptable?
Alternative energy is always going to have to be a mix
Solar - lots of places don't have a lot of sunshine (probably not the ideal place for Solar here)
Wind - some places are windy, some aren't
Hydro - some places have rivers, some don't (we're blessed here w/ lots of Hydro power)
and so on
However, initiatives like California's new "New Construction requires Solar Panels" makes sense
http://www.cbc.ca/news/world/californian-solar-panels-housing-1.4656813
Let's use the sensible technology where it makes sense.
A recent news report of a fire in a Tesla which killed two people has highlighted the issue of lithium battery safety. Now, we all know that 18650s have to be treated with some care as shorts can have nasty consequences. However, it occurs to me that the risk of a short in an electric car is hundreds or thousands of times higher than that in a drill, torch or laptop owing to the sheer number of cells used. It only takes one cell to short, and the whole pack can go up.
So, at what number of cells does the shorting risk become unacceptable?I wonder how many people are killed by gasoline fires?
Do a bit of research, very little energy is produced with hydro. Would hardly call that lots.
Do a bit of research, very little energy is produced with hydro. Would hardly call that lots.
I don't have to do any research; 90% of the electricity produced in this province is via Hydro Electric
So much in fact that the electricity company is called "BC Hydro".
Do a bit of research, very little energy is produced with hydro. Would hardly call that lots.
I don't have to do any research; 90% of the electricity produced in this province is via Hydro Electric
So much in fact that the electricity company is called "BC Hydro".
I think what Doug is trying to say is that on a global scale not a lot of electricity is being produced by hydro power plants
Hydro - some places have rivers, some don't (we're blessed here w/ lots of Hydro power)
Hydro - some places have rivers, some don't (we're blessed here w/ lots of Hydro power) We don't have "lots" of hydro power. Do a bit of research, very little energy is produced with hydro. Would hardly call that lots.
The Pacific Northwest is just a very small portion of the world we live in.