Search found 29 matches

by Hanssing
Nov 27, 2017 9:02 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Personally , i cannot envisage any generated electricity as having a marginal value of zero....especially in the quantity required to support a storage facility of the scale suggested (GWh +). Economic theory and such would indicate that storage cost is viability is a function of price *variation*....
by Hanssing
Nov 27, 2017 8:50 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

The oportunities for $0 cost will be far fewer than demands. 70% efficiency of pumped salt water hydro has already proven to be too low in a free market. 33% from intermittent electric over supply conversion to heat, and back to electric, is way too low to be cost effective. Everything is too low i...
by Hanssing
Nov 27, 2017 4:35 am
Forum: Battery Technology
Topic: Thread for new battery breakthrough PR releases
Replies: 1433
Views: 114458

Re: Thread for new battery breakthrough PR releases

Fisker hypes solid-state 1min recharge, 800km range: http://www.greencarcongress.com/2017/11/20171113-fisker.html Fisker’s solid-state batteries will feature three-dimensional electrodes with 2.5 times the energy density of lithium-ion batteries. Fisker claims that this technology will enable ranges...
by Hanssing
Nov 27, 2017 2:03 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

More GWh "battery" plans for Australia.. https://reneweconomy.com.au/1414-plans-two-gigawatt-hour-silicon-storage-plants-s-75504/ http://1414degrees.com.au/#What But of course, it will depend on recieving Govmt grant funding in order to be built ! :roll: Very highly flawed system for electrical sto...
by Hanssing
Nov 24, 2017 12:10 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

EDIT... Anyone explain why chose a Pelton wheel for the generator drive rather than the more common choice of Francis design ? When generating under big head-pressure, pelton-driven is most effecient. AFAIK its also more effecient under partial loads compared to nameplate rating. At medium pressure...
by Hanssing
Nov 23, 2017 6:39 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

New Pumped Hydro Energy Storage proejct: https://spectrum.ieee.org/energywise/energy/renewables/a-big-hydro-project-in-big-sky-country When the value of that regulation capacity is accounted for, Gordon Butte’s cost per kilowatt falls to $1,130. By contrast, the cost is anywhere from $1,177 to $1,83...
by Hanssing
Nov 22, 2017 2:28 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Yes, these projects are not common, especially for high power (back up) systems of 20 + hrs storage capacity. Unless my maths is screwed, ...isnt that German project actually $0.073 /Wh ..?? Which means there is also some huge variations in costs, probably related to available geology, scale of sto...
by Hanssing
Nov 10, 2017 10:47 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Denmark and Germany also have significantly higher power prices than other countries. They also depend on their international grid links for stability and security. For DK: No! Grid-prices are low! Look at the graph on page 3, you fact resistant old man :roll: We have highest home-prices, low buiss...
by Hanssing
Nov 09, 2017 2:04 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Denmark and Germany also have significantly higher power prices than other countries. They also depend on their international grid links for stability and security. For DK: No! Grid-prices are low! Look at the graph on page 3, you fact resistant old man :roll: We have highest home-prices, low buiss...
by Hanssing
Nov 08, 2017 2:05 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

About stability and progress: Smart Distribution Grids Power Europe's Transition to Green Energy: https://www.danskenergi.dk/sites/danskenergi.dk/files/media/dokumenter/2017-11/DSO_Magazine_210x297_ENG_V10.pdf Denmark’s grid delivers superior quality – at discount prices From 100 per cent coal-fired...
by Hanssing
Oct 10, 2017 12:06 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

I've read about thermal hot water storage to time shift solar energy by a whole season. How efficient can this be? I have also seen daily thermal storage with molten salt which requires a steam plant to convert back to electricity at 30%. Its quite efficient. You volume grows to the power of 3, but...
by Hanssing
Oct 10, 2017 7:56 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

sendler2112 wrote:
Hanssing wrote: Here intermittency is fairly simple to solve, short-term storage is very cheap
Storage other than natural hydro is very expensive. $400/kWh for batteries with electronics.
That part you quote if for low-grade thermal storage ie. hot water, think you misunderstood the post.
by Hanssing
Oct 09, 2017 11:29 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

How we will convert all of the other fossil fueled machines and industry, and heat, to electrical? Most other countries have very little hydro opportunity. Yes that is an interesting question, and its not solved but we're actively moving towards it. Heating -> Here intermittency is fairly simple to...
by Hanssing
Oct 09, 2017 11:15 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

...50% of Denmarks tax revenue from electricity, is directly refunded to the renewable generators. The cost breakdown for Germany is also very clear. Anyone saying solar or wind genrtation is cheaper than thermal options , is either misinformed, or just lieing ! Thats complete bullshit! And if pinn...
by Hanssing
Oct 08, 2017 12:13 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

You know a lot about wind turbines. I am interested also since in NY, USA we have good wind at the Eastern shore of Lake Ontario. And poor sun. But the reports I read are that the wind projects that we do have on the Tug Hill platue are predicated at 30% of the capacity factor and are further derat...
by Hanssing
Oct 08, 2017 11:22 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

For information, its not 0.25 latest figures show a year average PSO for 2017 of 0.154 kr/kWh (0.024 $/kWh) thats 7% increase in price with the benefit of reduced fossil use, green jobs in the sector, knowledge, improved national balance (no coal bought form the outside), etc.. If we can agree on th...
by Hanssing
Oct 08, 2017 5:33 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Yes, but as i said , establishing actual costs is near impossible.. None of those figures relates to the actual "cost" of generation (LCOE).....its all " commercial/contract pricing". There is simply no way an offshore wind turbine can produce power at a cost near to even gas co-gen that Denmark ha...
by Hanssing
Oct 08, 2017 1:54 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

I really do not understand how Denmark could have an average generation cost of us$0.04/kW when you have such a high proportion of Offshore wind and thermal generation (much of it heavily underutilised !). Thats easy - it's because of renewables. A lot of the renewables can sell with profit down to...
by Hanssing
Oct 07, 2017 6:39 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

...my understanding is that a large proportion (DKK 5.0bn pa), of the tax on electricity is paid directly back to the generators of renewable power. Hence the deployment of renewables has directly added to the consumer cost. Damn, now you made me factcheck my own numbers! :oops: MY bad, i remembere...
by Hanssing
Oct 07, 2017 1:50 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

But i notice you do not mention the end result of INCREASING power costs. Do you not see the significance in the FACTS that countries with a high % conversion to renewables (Australia, Denmark, Germany) have the HIGHEST power prices in the world. ? Let me clarify as a Dane - we actually have low po...
by Hanssing
Oct 06, 2017 1:19 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

I think it's actually interesting too see the knee-jerk reactions most people have. I am all for Gen-IVand MSR, but I am not holding my breath. I am however sleeping soundly knowing that the electrification is incresing, EVs are coming, and renewable generation is as well. Before you all say that wi...
by Hanssing
Sep 27, 2017 11:30 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Just saw the issue where the EV-haters dont belive in electrical dump-trucks..... https://ing.dk/artikel/elektrisk-dumper-bliver-verdens-stoerste-elkoeretoej-205590 Its in danish, sorry, but its a dump truck that will generate energy, since it moves down with load :-) But it could "just" be recharge...
by Hanssing
Sep 03, 2017 11:56 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1124
Views: 19104

Re: Wind and Solar vs Coal, Gasoline, Nuclear

This published study of PV energy generated vs energy consumed in producing a PV system is interesting.... Im sure the data and results would vary for different locations and current panel tech, but the conclusions are not what you would want to believe.. http://www.sciencedirect.com/science/articl...
by Hanssing
May 27, 2017 10:53 am
Forum: Alternative Energy
Topic: Advanced Rail Energy Storage (ARES) - grid storage system
Replies: 13
Views: 1856

Re: Advanced Rail Energy Storage (ARES) - grid storage syste

Yes, and my point is that msec response is irrelevant for grid control - minutes are needed, once you have spinning iron.
by Hanssing
May 27, 2017 1:03 am
Forum: Alternative Energy
Topic: Advanced Rail Energy Storage (ARES) - grid storage system
Replies: 13
Views: 1856

Re: Advanced Rail Energy Storage (ARES) - grid storage syste

Even rail cars with falling weights or water has a power delivery delay as gravity must accelerate either of them to transform the potential gravitational energy into kinetic energy to be then transformed into electricity. Sorry but thats nonsense. The spinning reserves in a hydroplant for gridstab...