Showing posts with label solar power. Show all posts
Showing posts with label solar power. Show all posts

Tuesday, August 17, 2010

Recommendations to deal with global warming

Action plan with 10 recommendations on dealing with global warming, as first published in 2007, complemented by a further 4 more recent recommendations.



1. Energy feebates

Impose fees on fossil fuel, on polluting power plants and on engines to fund local programs to electrify transport and to supply electricity in clean and safe ways, in particular by facilities that produce wind, solar, hydro-electric, geothermal, tidal and wave power. Link fees to rebates, through feebates tailored to fit local circumstances and to encourage electricified transport powered by renewables (see image below).


2. End perverse energy subsidies

End support for fossil fuel. There still are too many perverse subsidies for fossil fuel.


3. Global commitment

Agree on and support a new International Treaty, such as a strengthened Copenhagen Accord or a renewed Kyoto Protocol. Each nation should commit to reduce its emissions by, say, 10% annually. Nations should each be able to decide for themselves how to do this, provided they each meet their targets independently and genuinely (i.e. without buying or fabricating offsets or credits domestically or abroad). Border adjustments can help ensure that commitments are indeed met. As further discussed below, nations will also need to bring the atmosphere and oceans back to their pre-industrial state, and geo-engineering methods will need to be included, in a responsible way, as an indispensable part of such a comprehensive climate action plan.


4. Lifestyle change

Support lifestyles that are more environmentally-friendly. Encourage use of the Internet as an alternative to travel and commuting. Encourage homeschooling and working from home. Deregulate taxi services.


5. Standards

Impose standards and industry-specific regulations to ban products that cause large amounts of emissions, where good alternatives are readily available. An example of this would be incandescent light bulbs and gases used for cleaning and for refrigeration and air conditioning. Many nations have meanwhile set a date for a national ban and do actively promote a global ban. Another example would be gases used for cleaning and for refrigeration and air conditioning. Standards could be complemented by feebates, e.g. fees on sales of air conditioners that need HCFC-22, as well as on sales of HCFC-22 itself, while using revenues to fund rebates on the cleaner alternatives.


6. Support solutions

Support clean and safe energy. Apart from financial support, there must also be more active support in regulations and government policy to develop new facilities. Don't pick winners, but encourage competition and diversity among suppliers of such energy. Encourage interconnection and overlap of electricity grids, so that households can choose which grid to sell electricity to, if they generate a surplus in their backyard. Where needed, stop protecting intellectual property and use eminent domain provisions and fast-tracking legislation to speed up development of infrastructure.


7. Urban planning

Plan and develop new green communities, such as communities without roads (i.e. with footpaths and bikepaths instead of roads). Plan houses close together, around a local center of shops and restaurants. Redesign existing cities so that people have to travel less. Impose fees on combustion ovens and use the revenues to support energy saving programs, such as distribution of solar cookers (see image below), solar LED lights, more efficient appliances, buildings, etc.


8. Further feebates: Biochar and olivine

Support biochar and olivine. Impose fees on the sale of Portland cement, livestock products and nitrogen fertilizers and use the revenues to support biochar. Pyrolysis should be the preferred way to handle surplus biomass (see image below).


9. Government should lead

Make government take the lead in reducing emissions. Ask for ideas. Have more staff work from home. Look at ways to offer services over the phone, over the Net, etc.


10. Disclosure

Disclosure. Make that government departments and large companies publicly disclose their emissions of greenhouse gases. Make products display on their packaging the amounts of greenhouse gases needed to produce it.


The above ten recommendations have remained much the same since first posted back in April 2007, in Ten recommendations to deal with global warming. However, too little has happened since, reason for the need to add another four recommendations:


11. Adaptation

Prepare for the impact of climate change. Preserve species that are under threat from climate change. Protect and support areas such as rain forests. Assist with adaptation.


12. Carbon dioxide removal

As discussed under 8., various methods to remove carbon dioxide should be jointly applied to restore oceans and the atmosphere to their pre-industrial state, such as through biochar burial and olivine weathering. Furthermore, methods of carbon capture from ambient air should be supported. Fees could be imposed on aviation, while the revenues could be used to support carbon air capture, which could in turn produce synthetic fuel for use in aviation, thus kick-starting carbon air capture technology.


13. Further geo-engineering

Study, consider and responsibly deploy further geo-engineering methods to increase solar reflection and to deal with methane, in order to reduce the risk of runaway global warming, and use techniques such as algae bags to reduce acidification of oceans and pollution in general, in addition to above carbon dioxide removal methods.


14. Afforestation

Deploy plans for afforestation. Plan for desalination to irrigate and vegetate deserts and other areas with little vegetation.

Friday, September 14, 2007

The Future is Electric Cars!

Who killed the electric car? It's an excellent documentary video, a must see! It was released on DVD to the home video market on November 14, 2006.
http://earthissues.multiply.com/video/item/16http://en.wikipedia.org/wiki/Who_Killed_the_Electric_Car%3F

There's more great footage at the Earth Issues website, such as a race between an electric car called the X1 against a Ferrari and a Porsche, and underwater recharging of an GM EV1 battery. http://earthissues.multiply.com/video/item/14
http://earthissues.multiply.com/video/item/15

The electric car dates back to the 1830s, when Robert Anderson of Scotland invented the first crude electric carriage. Around 1900, electric cars outsold all other types of cars in America. Why? Because they did not have the vibration, smell and noise of gasoline cars and required neither gear changes to drive nor much manual effort to start (as with the hand crank on gasoline cars). The only good roads then were downtown and most car travel was local, perfect for slow electric vehicles with a limited range.

Now it's time to reinvent the electric car, for its convenience and for the positive contribution it can make in terms of the environment and global warming. Solar power and electric cars is a winning combination. Let me explain. Wind and solar power is not continuous, and this is where car batteries can help out, by storing electricity at times of high supply, to feed electricity back into the grid when supply is low. I can well imagine car batteries both drawing and feeding power to/from the grid at night. Intelligent net metering will assist with this.

How much solar power is needed for all this electricity? How much surface does it take to supply solar energy? The following URL displays an image with red squares showing how much surface needs to be covered in theory by solar power facilities to generate enough electricity to meet the entire demand of respectively the World, Europe (EU-25) and Germany.

 edited from: http://en.wikipedia.org/wiki/Desertec - image origin, see: http://en.wikipedia.org/wiki/Image:Fullneed.jpg

In fact, "how much surface" should be rephrased into "how little surface". Solar power alone could well provide enough energy for both our current electricity needs and can supply the additional energy needs to run our cars as well. Indeed, cars need not be bad from an environmental perspective. In fact, the combination of cars and solar power can be a winner for both. Again, let me explain.

Electricity can be stored in car batteries during the day, when cars are parked under roofs that are covered with solar panels that recharge the batteries. That could easily recharge the car battery enough for the owners to drive home and still leave sufficient power in the battery for other use. Note that 70% of Americans drive less than 33 miles per day. Late afternoon, when most people return home, they can plug their cars in at home for their own power use in the evening. Many will even have sufficient energy left to feed power back into the grid, selling electricity at top rates due to peak demand for power in the evening. Even if the battery became fully discharged in the evening, this still makes economic sense, as one can recharge later from the grid (during the night or early in the morning) when rates should be cheaper. Imagine there's a lot of wind during one part of the night. The meter will indicate that this is a good time for empty batteries to recharge. Conversely, when there is no wind in the evening, one will be able to get top dollars for feeding electricity back into the grid, pre-setting the battery to keep enough charge to get to work in the morning. As discussed, the car can then fully recharge from the solar panels on the roof of the parking place at work.

Sounds far-fetched? I'm very impressed with the Tesla Roadster, which has specs that many don't expect from electric cars, specifically an acceleration from 0 to 60 in about 4 seconds and a top speed of over 130 mph. It also looks great! You can recharge the battery at night in your garage and it will cost you as little a $2.50 in electricity for a full recharge.

With the Tesla, you'll be able to drive up to 250 miles on one single charge. This radius is achieved partly with regenerative braking that stores energy produced when braking. Recharging an empty battery with an EVSE system (operating at 70 amps) takes as little as 3.5 hours, but it also comes with a mobile-charging kit that lets you charge from any standard electrical outlet, e.g. in case you get stranded with an empty battery. Anyway, this short recharge time allows one to feed power back into the grid in the evening (when demand is high and supply from solar power sources is low) and still recharge later at night or early in the morning. Indeed, later at night rates are low, so it makes sense to recharge then. If sufficient wind is blowing, supply from wind turbines may be abundant in your area.

Electric cars requires less maintenance, since there are very few moving parts; you don't need to change engine oil, filters, gaskets, hoses, plugs, belts, there's no catalytic converter or exhaust pipe to replace. However, cost still is an issue, the Tesla Roadster 2008 model has a pricetag of $92,000 and the battery pack warrenty is limited (I think it's only warrented for 100,000 miles, while it does cost thousands of dollars to replace). But battery cost is expected to come down in future, while at the same time battery capacity and performance is expected to increase over time.
http://teslamotors.com/

Also have a look at Google's initiative on plug-in cars:
http://www.youtube.com/watch?v=oDjSbWTJbdo
Google still uses plug-in hybrids, but it sets a trend away from using fossil fuel. There are also ethanol-electric hybrid cars; more than a year ago, Saab (General Motors Swedish car unit) already showcased such a car, combining an electric motor with an E85 Ethanol engine.
http://www.forbes.com/finance/feeds/afx/2006/03/23/afx2616065.html
Google.org has issued a request for proposals to the tune of $10 million in order to advance sustainable transportation solutions.
http://blog.google.org/2007/09/drivers-start-your-batteries.html

Let me also pass on some links to the Rocky Mountain Institute in Colorado, at:
https://www.rmi.org/
They envisage a "Hypercar," made of ultralight, super-strong, carbon composite material, which is 12x as strong as steel on impact. Manufacturing cars and trucks using these materials would dramatically increast the range of electrical cars.
http://www.rmi.org/sitepages/pid191.php
http://www.fiberforge.com/
Hydrogen is another way to store energy and is also promising in expanding the range of electric cars.
https://www.rmi.org/images/PDFs/Energy/U02-02_CleanerGreener.pdf (1.59 MB)

In conclusion: Just like we shouldn't rely on any single source of power (we should use wind, hydro, solar power and more), we shouldn't rely on a single way of storing power either. Apart from using car batteries for storage, we could use the Great Lakes as a reservoir not only of water, but also of power. At times of peak supply of wind and solar power, surplus power could be used to pump water back from a lower to a higher lake, in order to use hydro-power at times when supply of other types of power is low. Free markets are good in sorting out which technology works best where and when. I have no doubts that the nuclear alternative will be prohibitively expensive once risk factors are better taken into account (accidents, waste management, terrorism, etc).

Cheers!
Sam Carana

Originally posted under the title: Solar power and electric cars, a winning combination!
at: http://global-warming.gather.com/viewArticle.jsp?articleId=281474977115548

Also posted under the title: The Future is Electric Cars! 
at: http://groups.google.com/group/greenhouseeffect/browse_thread/thread/cc002e38e9b2bf9e