The Forum > General Discussion > Has the time come for
Has the time come for
- Pages:
-
- 1
- 2
- 3
- 4
- Page 5
- 6
- 7
-
- All
Posted by Bazz, Wednesday, 22 February 2017 12:44:33 PM
| |
SR,
You are seriously missing the point. The new HELE ultra critical power plants offer power generation at emission levels that approach that used by peak clipping gas generators. A mix of generation made from 60% HELE coal fired generators, 30% wind and solar and 10% hydro and other renewables would emit about 40% of what we presently do as compared to purely renewables backed up with gas generators which would emit about 20% and cost twice as much. Similarly I am not disputing that the gas prices have risen because of high overseas demand, however, as you have admitted, there is no shortage of gas available, so a mandate that x amount is supplied domestically is not the point. What you want is for the government to legislate to steal the gas from the suppliers by forcing them to sell below market price to subsidise domestic users. The law in the country presently requires that while the government can commandeer property, it is legally required to compensate the owner at market rates. It is the same legislation that prevents the government from forcibly buying your house to build a new road and paying you $1. http://cornerstonemag.net/setting-the-benchmark-the-worlds-most-efficient-coal-fired-power-plants/ Posted by Shadow Minister, Wednesday, 22 February 2017 2:21:25 PM
| |
Why is it that o one points up the problem with 50% renewables ?
It does not seem to be understood that have to have 100% base load generators as well. So you have to build plant that costs and the maintenance costs 150% of otherwise. Then they jump up and say, "Oh we can have storage !". Well that is true, but just how big does it have to be ? If one morning there is heavy overcast and no wind, then it has to be 100% of 24hrs demand. Oh ! catch; as well as supplying today's demand it has to recharge the storage. So it has to be 200% of a days supply. Oh ! catch, what if the next day is overcast and no wind ? So it needs to be 300% of a days supply. But it needs to be able to charge up the next sunny windy day, another 100%, ie 400% of a days supply. Oh dear, this storage business gets very expensive does it not ? I have never seen any discussion on these factors. Does it just crash the whole idea of renewables ? Posted by Bazz, Wednesday, 22 February 2017 3:39:00 PM
| |
More:
Of course you can have very large dams at significant height and they can hold perhaps several weeks of 100% supply. Then if the statistics of the weather and rainfall permits, it can be a winner. Is there such a place where we could "waste" that much fresh water or can we make a suitable large enough dam for ocean salt water. How much would it cost ? What effect would all this have on your electricity bill ? No one seems to put this sort of thing to the public. Posted by Bazz, Wednesday, 22 February 2017 3:50:52 PM
| |
rehctub,
One of the nice features of a market economy is that the government doesn't have to pick winners. It can just run expansionary economic policies and the market will do the rest. Posted by Aidan, Wednesday, 22 February 2017 4:56:13 PM
| |
Nah, the market closed down the gas generator , no profit in it and consumers get what is good for the investors' asset.
Posted by nicknamenick, Wednesday, 22 February 2017 5:26:21 PM
|
We must leave oil and coal before they leave us.
Nothing said on here takes into account that WORLD peak coal is now.
China is closing non economic mines, many old US coal mining areas
are now decrepit towns. They extended their time by mountain topping.
Australia is different, we have much as yet untapped coal resources.
We can reserve much of it for our own use while we learn from overseas
experience how to cope without coal.
Very little of the discussion on here as well as elsewhere takes into
account the decline in coal production.
Oil is starting to become too expensive to extract with Shell diverting
to gas operations and Exxon Mobile cutting back in areas such as oil sands.
The fossil fuel industries are facing major restructuring.
Have a look at oil industry financial reports, it is not pretty.
Amazingly in our discussions both in places like this and in politics
just does not even get a mention !