Search found 354 matches

by Cephalotus
Jan 22, 2018 11:15 am
Forum: Battery Technology
Topic: LG HG2
Replies: 4
Views: 139

Re: LG HG2

This datasheet shows excellent cycle life even at 4A charge rates:

https://www.nkon.nl/sk/k/hg2.pdf

I do not have experience with real life Performance.
by Cephalotus
Jan 11, 2018 2:45 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Is your government giving a big rebate to the sellers right at the point of sale? . There is zero involvement from government. The EEG law gives you the right to connect your PV power plant to the grid, to feed in solar energy and the law gives you a guaranted price for 20 years. The difference to ...
by Cephalotus
Jan 11, 2018 12:32 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

DIY just for the parts for a 9kW grid tie roof top with no storage is $1.70/ W from the best mail order outlet. c-Si modules cost 0.50-0.60€/W for small systems, small inverters cost 0.15€/W, rest depends on your roof and length of cables needed. You usually do not have to pay VAT for your home PV ...
by Cephalotus
Jan 11, 2018 9:38 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Grid tie roof top with no storage in NY USA is $3.30/W, 2.74 Euro. Almost unbelieveable super expensive. Well, maybe that's why Tesla beleives it will be able to sell their super exensive solar roof technology in the US? https://energytransition.org/2015/05/solar-twice-as-expensive-in-us-as-in-germ...
by Cephalotus
Jan 11, 2018 8:55 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Anyway Germany is back now and I screen shotted just a few minutes ago lining up France vs Germany and you can see despite Germanys epic installation of wind and solar renewables of more than 100% of fossil fuel that they still emit almost exactly 10 times (x 10!) more co2 than France, and in Germa...
by Cephalotus
Jan 11, 2018 8:49 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

But look at the cost, every single solar farm in Germany is sitting where trees once sat or could sit. https://en.wikipedia.org/wiki/Templin_Solar_Park ...located at the former Templin military Airport https://en.wikipedia.org/wiki/Neuhardenberg_Solar_Park ... located at the former Neuhardenberg mi...
by Cephalotus
Jan 11, 2018 8:43 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Yeah I was just taking a deeper look at Solar in Germany and they really have installed an epic amount of solar panels and cut down A LOT OF FORESTS to produce the same average power output as a single coal power-station Germany has lots of forest (around 30%) and afaik only very, very few solar PV...
by Cephalotus
Jan 11, 2018 8:30 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

I see these numbers repeated here constantly but there is never anything to back them up other than many biased articles in solar trade magazines. A solar install at $2.50/ W in the USA... In Germany the investment cost for large solar PV is around 0.65 Euro/W I assume that it is cheaper in some ot...
by Cephalotus
Jan 11, 2018 6:38 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Im happy to wait and watch and see who crashes and burns their economy first on this RE crusade, Germany or S Australia ! ..or makbe the UK can make a late charge and beat them both. ! In 2017 German economy has grown by +2,2%. The export surplus has been somewhere above 200 billion Euro Germanies ...
by Cephalotus
Jan 11, 2018 6:27 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Wind generators in Germany are "guaranteed" a feed in tarrif of 8€ct/kWh for 5 years, and a lower rate for the next 15 yrs..... So who is paying the extra 4€cts ? ( hidden in taxes ?) Again you are not up to date to the real data. They have to bid for the feed in tarif price now. Average feed in ta...
by Cephalotus
Jan 11, 2018 5:08 am
Forum: Polls & Surveys
Topic: Would you put solar panel on your electric vehicle
Replies: 30
Views: 705

Re: Would you put solar panel on your electric vehicle

Two guys on a team had issues with cracked solar cells, and had to abandon the trip 1/2 way through. A corner of one of their solar panels literally broke off. This is after that panel's protective film had started bubbling in the heat of the day, and had been for several days at that point. Severa...
by Cephalotus
Jan 11, 2018 4:57 am
Forum: Polls & Surveys
Topic: Would you put solar panel on your electric vehicle
Replies: 30
Views: 705

Re: Would you put solar panel on your electric vehicle

30%+ moduls are ultra expensive to purchase. As a very rough estimate factor 1,000 more expensive compared to 20%+ moduls. Energy from solar moduls mounted on ebikes is always expensive, because you will only use a small amount of their potential power Generation and lightweight moduls cost 3-5 time...
by Cephalotus
Jan 11, 2018 3:38 am
Forum: Polls & Surveys
Topic: Would you put solar panel on your electric vehicle
Replies: 30
Views: 705

Re: Would you put solar panel on your electric vehicle

Low efficiency? 20% is where PV is at right now. And a whopping 15% 12 years ago, when i purchased a 185w Sanyo HIT - let's see,.that's less than 0.5% improvent in PV efficiency per/yr. Just means the manufactures' are intentially withholding improvements, just to maintain PV sales volume. Solar ce...
by Cephalotus
Jan 10, 2018 1:04 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

The latest framing of what's required to meet the Paris Climate Accord targets (<2°C warming) are halving of CO2 emissions every 10 years and a doubling of green energy every 5 years (continuing the trend that started 10 years ago). This would see coal eliminated by 2030, oil by 2040 and all fossil...
by Cephalotus
Jan 10, 2018 10:20 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Oh you mean similar to how most solar references are made to nameplate capacity where actual production will be 1/4 at best and Germany averages 11% capacity factor for it's solar. That's the song you sing continously, without anyone ever arguing against you about that. I know that 1kW is not the s...
by Cephalotus
Jan 10, 2018 9:50 am
Forum: Battery Technology
Topic: Panasonic NCR18650GA disclosed specs, and 30Q Samsung cells
Replies: 17
Views: 543

Re: Panasonic NCR18650GA disclosed specs, and 30Q Samsung cells

Pajda wrote:
Jan 10, 2018 9:03 am


I can confirm that with my own measurement.
Very interesting. Can you provide some graphs?
by Cephalotus
Jan 10, 2018 8:46 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Nuclear increases 48% as it shifts almost entirely to China but will only be 11% of the world total... This will be 11% of primary energy production where they count all that unused heat from the nukes. In end energy it will be only 1/3rd of it and in reality the share will not be 3-4% but below 2%...
by Cephalotus
Jan 10, 2018 8:41 am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

During night, solar production is even Zero and will be forever. :-) "Cost efficiency" of solar PV is high in Germany, new solar PV plants produce electricity at around 5€ct/kWh. New wind power is around 4€ct/kWh. Both are competitive. (up to) 4 billion Euro for "grid stabilisation" in the years aft...
by Cephalotus
Jan 10, 2018 7:00 am
Forum: Battery Technology
Topic: Panasonic NCR18650GA disclosed specs, and 30Q Samsung cells
Replies: 17
Views: 543

Re: Panasonic NCR18650GA disclosed specs, and 30Q Samsung cells

This is why it's so hard for me to think of moving away from A123 batteries, which I have. I rely strongly on recuperation/regen, and rather powerful ones in the hilly terrain I live. A123 cells have no recuperation limits, no need for any sort of current limit (discharge or charge), and their life...
by Cephalotus
Jan 09, 2018 3:37 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Exactly. A rhetorical question really. Solar plus wind electricity is still a small fraction of total energy consumption in Germany or anywhere. Yes. But solar+wind porvide already much more electricty then provided by nuclear power. At least over here and in many other countries of the world, too....
by Cephalotus
Jan 09, 2018 3:14 pm
Forum: Polls & Surveys
Topic: Would you put solar panel on your electric vehicle
Replies: 30
Views: 705

Re: Would you put solar panel on your electric vehicle

Hi all, Here's a couple pictures of my first solar bike... Hey the e wind! Very cool to be able to talk to someone who did one of the Suntrips! Is there any data available how the solar system performed day by day? What did work well and what didn't? Any problems with microcracks in those sunpower ...
by Cephalotus
Jan 09, 2018 3:09 pm
Forum: Polls & Surveys
Topic: Would you put solar panel on your electric vehicle
Replies: 30
Views: 705

Re: Would you put solar panel on your electric vehicle

bingbing304 wrote:
Nov 04, 2017 10:31 pm

I used the MPT-7201A. It seems pretty common.
I have that too. It is cheap. BUT it doesn't use real MPP tracking and in partly shaded conditions (i.e. when the solar panel is mounted on your rack) it sadly becomes next to useless.
by Cephalotus
Jan 09, 2018 12:29 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

The point I keep trying to help everyone understand is that we have a much bigger problem than climate and environmental change due to continued use of fossil fuels. Fossil fuels enabled this entire modern 7.5 Billion human civilization and the numbers for replacing fossil fuels for total energy as...
by Cephalotus
Jan 09, 2018 12:22 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

This is the newest graphic I have for Germany from 2014. Does 3 years make a big difference to the tiny amount of solar and wind? I provided you data with an accuracity of 15 minutes that is perfectly up to date, available in about any Format that you wish and with data backwards for some years. Yo...
by Cephalotus
Jan 09, 2018 12:06 pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 1400
Views: 28437

Re: Wind and Solar vs Coal, Gasoline, Nuclear

The important point he, and others like Mackay, are trying to make is that when you say that Germany has made ABC% of "energy" from renewables, you have misspoken. What you mean to say is that Germany has made ABC% of ELECTRICITY from renewables. He is reminding us that total energy consumption is ...