Voici la question qui me guide dans mes recherches...

L’appât du gain manifesté par les entreprises supranationales et certains groupes oligarchiques, de même que le contrôle des ressources naturelles par ceux-ci, dirigent l’humanité vers un nouvel ordre mondial de type féodal, voir même sa perte. Confronté à cette situation, l’être humain est invité à refuser d’accepter d’emblée une pseudo-vérité véhiculée par des médias peut-être à la solde de ces entreprises et groupes. Au contraire, il est invité à s’engager dans un processus de discernement et conscientisation afin de créer sa propre vérité par la confrontation de sa réalité nécessairement subjective à des données objectives, telles que révélées par la science, par exemple.

The penalty that good men pay for not being interested in politics is to be governed by men worse than themselves. - Plato

dimanche 31 janvier 2016

Getting started with Internet of Things IoT


Here's some quick notes for those of you who are looking to build some IoT devices by your self.

There's two main types of devices to start with, many others, but will cover the 2 main ones first...

 

1) Arduino based products
  • Arduino comes in a range of form factors some of which are very small (almost as small as a bottle-top in some cases)
  • Can only use one language, a variant of C
  • Need a computer to program it and upload
  • You cannot connect the  usual keyboard, mouse and display.
  • It's good to do simple task, read/write I/O's and take actions
  • Cost varies from 3$ to 20$ and more if adding modules (WiFi)
  • With careful programming, can run a single task for a year on a set of AA batteries
  • Support page of Arduino
  • Home page of the product
  • Lots of digital I/O's, analog input (for sensors) and PWM (for analog out). List per model.
  • Many vendors have enhanced Arduino compatible boards like this one with WiFi, SD card and RTC.
  • Add-on Modules are called "shields".  Many exist, like adding WiFi, controlling motors etc.
  • 5 Great Arduino shields you should buy 
2) Raspberry PI based products
  •  RaspberryPI is a complete PC
  • You can connect a keyboard, mouse and display
  • Cost varies from $20-$60 depending on type of modules
  • RaspPi has a wide variety of programming languages available eg perl, python, php, C, shell etc and can be programming with a keyboard and a HDMI-compatible monitor.
  • Support page of Raspberry Pi
  • Home page of Raspberry Pi
  • WiFi can be added with off-the-shelf USB Wifi stick
  • Consume a lot more power than the Arduino
3) Discovered some more fun things to explore!

Partly discovered from this video

  • Particle Photon
    • Fast 32 bit CPU + I/) and WiFi
  • CHIP - The World's First Nine Dollar Computer
  • PINE A64, First $15 64-Bit Single Board Super Computer
  • UDOO Neo = Raspberry Pi + Arduino + Wi-Fi + BT 4.0 + Sensors
  • LattePanda - A £45 Win10 Computer For Everything
  • Black Swift is a tiny — coin-sized — embedded computer with powerful CPU, integrated Wi-Fi and USB interface

4) Vendors

5) Other info

I will be documenting my project here, which the first one should consist of a Arduino + Wifi monitoring water level, humidity and temperature and exporting the data to ThingSpeak.

dimanche 3 janvier 2016

How to calculate solar power for Canada.

Taking a course on energy on Coursera.  I stumble on this Canadien web site:

http://pv.nrcan.gc.ca/

Where you can find the number of kWh yearly average per kW of solar panel installed.

The FAQ page explains the calculation:

1. What does photovoltaic (PV) potential mean and what do the units kWh/kW refer to?
The PV potential values give a simple estimate of how much AC electricity in kilowatt-hours (kWh) is expected to be generated by a typical grid-connected photovoltaic system without batteries per unit of photovoltaic system rated DC power in kilowatts (kW) at Standard Test Conditions (STC). The STC rated power of a PV system is the total rated DC power at STC of all the photovoltaic modules in the PV system. Standard Test Conditions are: 1000 W/m² irradiance with normal incidence, 25°C module temperature, air mass 1.5. PV potential values are given as totals per month or per year, and represent an estimated average yield over the lifetime of a typical PV system. As an example, if the annual PV potential at a given location is 1150 kWh/kW, this indicates that for a system with a rated STC power of 3 kW, annual electricity production should be approximately 1150 kWh/kW*3 kW=3450 kWh. More about the methodology that was used to estimate PV potential is explained here.

So for my location, the early average if the panels are tilted to my latitude (optimal), I get around 1200kWh/kW.  So if I install this panel of 140W (cost around 300$), I will get:
1200*(140/1000) = 168kWh per year.  Divide this by 365 days and 24h, this give 19.2WattsHr in average over the year for this 140W panel... or 19.2/140*100 = 13.6% capacity factor.

So my 140W panel, gives me a early average of 19.2W.  If I need to power and average house in Canada, which is 12,000kWh/year, this is around 1.4kWh.  So I would need 1400W/19.2W = around 73 panels of 140W or around 22,000$ just for the panels, without counting the batteries and installation. 

I would also need a lot of space!  Around 850 square foot or around 30 foot x 30 foot of south facing space. And I would need to clear the snow of those panels during 3-4 months.

In Quebec, I spend less than 4000$ per year on electricity (I burn wood during winter time).  So to pay for the panels only, it would be 5.5 years of return... With the whole cost, installation, batteries, we can easily double that number to around 10 years.

dimanche 29 novembre 2015

How much nuclear power can we produce with money spend on climate

I was reading the news and saw numbers on how much money spent on climate "research", subsides and other related project.

For the USA only:

Federal anti-climate-change spending is now running at $11 billion a year, plus tax breaks of $20 billion a year.

So I was wondering how much this 31 billion a year could buy in term of clean energy like nuclear.  For sure we need clean energy in developing nation more than in industrialized nations.

Therefore my example, will take China which has become the larger CO2 emitter in the world by a large margins.  According to many report, this will continue until 2030 before leveling off.  India is also growing faster.


CO2 per say is not a big problem, but related emission from those sources can cause pollution problems. 

China is already building a lot of nuclear but is building coal at a fast pace.  Let say we used that 31 billion a year to build more nuclear power....

According to the  world nuclear organization, the "overnight" cost of building 1 kW in Asia is around 2500$. For this quick calculation, I will leave out the other costs which are trivial.

31,000,000,000 / 2,500 = 12,400,000 kW or 12,400 MW every year of clean nuclear power.

That would be enough to displace 3 coal plant of  3,000MW per year.

According to EIA, a coal plant produce 2 pound of CO2 / kWh. So displacing 12,400MW of coal power would save 24,800,000 pound of CO2 per hour or 217,248,000,000 pound per year or 98,542,035 metric ton.  The graph above is expressed in millions (M) of (Thousand metric tons). so 98,542,035 is 98,500 Thousand metric tons.... to get to only 1M, you would need to keep that rate for 10 years. So to get to north American level of emission, you would need 50 years at the rate of replacing 3 coal plant per year with nuclear.

In conclusion, if CO2 was really a major issue, we would not spend that money for nothing but would build nuclear power like crazy.

Remember, those are dollar amount for only the USA climate spending and did a rough calculation just to put some perspective on how much real impact we could have with that amount of money.


mercredi 4 novembre 2015

Help needed - Education

To all my skeptic friends... I need your help.

I am confronted every day with people who only saw one side of the climate debate. Only the alarmist view, nothing more.

The only thing they know about the skeptics is that we don't believe the climate is changing and we are all paid by some evil industry somewhere!
Anyway, you know what I am talking about.


Here's where I need help... I want to build a library of articles and video where we can point someone willing to see the other side of the issue (skeptic view) and be willing to learn.

But I don't want them to start with something that will turn them off, I want to present things as a learning curve where they will learn first what is CO2 and how is temperature measured, for example... I don't want to present them with the conclusion that most of us know that took decades of following debates and reading everything available made possible.

I want to start them soft, show them slowly some facts that the alarmist side are not showing, something that will slowly help them understand the debate and not turn them off to the other point of view while only dismissing us like we are all crazy people!

So... I would like you to comment below this post and propose articles, podcast and video that can help the general public understand this debate, without turning them off.

Thanks for the help!

Simon

vendredi 23 octobre 2015

Canada and it's national CO2 target... a joke?

Did you know that Canada signed the Copenhagen Accord in December 2009, thereby committing to reducing its GHG emissions to 17% below 2005 levels by 2020.


What does this means exactly... what will be the impact if Canada manage to do this?

Here's the graph from environment Canada:
Look at the scale on the left side... Wow!  Megatonnes of CO2... that's huge right?

Ok... let's put some perspective on this... 1000 Megatonnes is 1 Gigatonne.. or 1Gt.  So far with me?
According to the IPCC own calculation, you would need 2.12 Gt of CO2 per year to increase the atmospheric content by 1 PPM. 

So the whole of Canada emissions today is around 0.75 Gt, this gives us 0.35 PPM increase per year according to this calculation.  Wow... a big number!  But wait... the target is to reduce by 17% compared to the 2005 level... which is around 621 or 0.621 Gt per year.  Again in PPM this is 0.29 PPM... or a big reduction of 0.06 PPM per year.  The atmosphere today is around 400 PPM... so what is 0.06 PPM difference make?

Let's look at a graph of the CO2 seasonal variation and compare this...

If you zoom in on the seasonal uptake, which is the amount of CO2 the world plants and ocean consume.. it's around 6 PPM in 2014... so nature naturally reduces the CO2 PPM in the atmosphere by a factor of 100 times more every season that what would would achieve if we were to meet the reduction targets.

So this target compared to the amount already in the atmosphere and the natural variability is pretty much in the noise level... right... but how do Canada emissions compared to the world then.

Here's the Global emissions per regions in the world:
The Y axis is in M... this is for each 1M is equal to 1Gt... that's right... 1M is already above the total emissions of the whole of Canada which is 0.75M or 0.75Gt of CO2.

Look at east Asia and pacific region... them alone are emitting 13M or 13Gt... this is like 17 times more that the whole of Canada!

For the whole world, we emit close to 35M or 35Gt of CO2 annually... So Canada is emitting around 2% of global emission... do you think that reducing from 0.75Gt to 0.621Gt per year will make any difference globally?  Probably not! It would actually be a 0.37% reduction per year globally.

Can we calculate the impact on global temperature? Well, according to some theory... we have what is called climate sensitivity numbers... this is how much warming in °C a doubling of CO2 (PPM) will bring to the world...

Here's how this number evolved over the years:
So... the latest studies places this number around or below 2°C... so let us play the alarmist playbook and take the 2°C number for a doubling of CO2...

This is compared to a level of 280 PPM, before the industrial revolution!  Ok... so we have a potential of 2°C of warming for adding 280 PPM.  So for each PPM this is 0.007 °C... and we calculated above that Canada reduction would be by 0.06 PPM... 

Therefore, Canada's efforts to reach this very important target will potentially reduce the global temperature by a whooping... READY!  0.000042 °C per year!  WOW... will we save the world!

But let go a bit further... the world emits 35Gt per year of CO2... so this would be 35/2.12 = 16.5 PPM added every year to the global CO2... if all those numbers are right... right?

But look at the above graph (real measurement data in Hawai)... the red line... here's the section... CO2 is increasing by a bit less than 3 PPM per year... not by 16.5... so where is the 13.5 PPM going?  We see that the earth is capturing around 6 PPM per year... I will leave you think a little about this...

So take all the above number with a grain of salt... meaning that they are probably 2-3 time too much....

In conclusion, if I was the prime minister of Canada... I would not worry too much about all that and for sure would not spend billions on this climate non-sense!