Here’s why:

Lower Cost of Renewable Energy

High prices are one of the largest barriers facing renewables. Storage can help overcome this because not all watts are created equal. During peak demand on the electric grid, electric companies will pay more for electricity. Often the additional power needs at this time are supplied by natural gas or oil, which have higher fuel costs, yet can produce electricity at a moment’s notice. The opposite is true during times of low demand, when electricity costs are lower. Solar energy tends to correspond with these price fluctuations by generating large amounts of electricity during times of peak demand.

This is because air conditioning loads are largely responsible for increased electric demand. People tend to crank up the a.c. when the sun it out. Wind energy and other renewable energy sources however don’t necessarily correspond as closely. Storage will allow these energy sources to be fed to the grid during the most lucrative times.

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Last week we sent an email to our action network asking how people were coping with high oil prices. The response on our sister blog, the Green Room, was enthusiastic — over 600 comments! Here are some of our favorites, organized by topic:

Strategies to Increase Gas Mileage

From Ann:

I’ve been driving 60 mph on the highway and have seen a dramatic improvement in my gas mileage. I’m getting 38-40 mpg in my Toyota Camry on the highway! Drive 60 when you go.

From Mike Frisch:

I have dropped my fuel use by 70-80%

1) I bicycle two days per week (25 mile round trip) - great exercise & fun.

2) I purchased an electric bike/scooter (Ego cycle 2 LX, cost $1700) and I use it two days per week - costs 10 cents to charge it - great fun.

3) On the days I have to use my car, I carpool, and I drive 60 mph or less to save fuel.

Editor’s Note: For others thinking of trying scooters, be sure to do it safely. Motorcycle and scooter accidents are on the rise due to inexperienced converts.

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Turns out, 50% of people in the US are wiser than I thought: there is no quick fix or simple solution.

Another interesting result from the survey: 48% of consumers don’t see McCain or Obama as having a particular advantage when trying to work with the auto industry to bring more fuel efficient or plug-in vehicles to the market in the future.

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Enova Systems and IC Corporation have delivered a plug-in hybrid diesel electric bus to Denali National Park for use in carting visitors around the pristine wilderness.

The bus (similar to the one pictured above) has a GVWR of 27,500 pounds, carries up to 38 passengers and uses up to 70% less fuel than a similarly equipped conventional bus — so if the bus got 10 mpg with a conventional engine, it could get 30 mpg using Enova’s hybrid system.

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The revolution has an emphasis on using Venezuelan produced products like PVC pipes to construct homes. Another major component of the revolution includes an initiative to make Venezuela more self-sufficient in food production, thus quelling the need to import food. Projects to provide additional electrical power through alternative energies like wind and solar technologies are also commencing.

The most notable and measurable success to date for the so-called energy revolution, however, has been Venezuela’s effort to change out standard light bulbs across the country for CFLS (energy-saving compact flourescent light bulbs) exactly like those Chávez donated to Texans. So far, 72.3 million light bulbs have been changed. But the story is perhaps not as simple as it would seem (as is almost any story about Chávez and his schemes).

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Aptera also plans to use the new funds to construct a manufacturing facility in Vista, CA, close to the company’s present headquarters in Carlsbad.

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Great news on the power efficiency front: Scientists have invented a new material that can efficiently convert heat waste in cars, power generators, and heat pumps into electricity. The new material is thermoelectric, and can turn heat into energy without any pollution.

The invention, thallium-doped lead telluride, is twice as efficient as the second most efficient material used in thermoelectric power. The lead telluride creates electric power like a conventional heat engine coupled to an electric generator, but uses electrons as the working fluid instead of water or gas. Additionally, it creates electricity directly.

Most importantly, the material is most effective between 450 and 950° Fahrenheit. This is a typical temperature range for many power systems, including car engines.

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In a slew of announcements this week, a picture of what the future of plug-in vehicle charging might look like is starting to emerge.

The Problem:

There are 54 million garages for the 247 million registered cars in the US, meaning that the majority of cars are parked overnight in parking structures, parking lots or curbside.

As a result, most potential plug-in vehicle consumers do not have an adequate place to charge their vehicles. This problem is even more pronounced in urban areas like San Francisco, where only about 16% of cars are parked in garages overnight and the rest end up curbside or in parking lots.

Also, although the US power grid probably has enough overall capacity to supply energy to a nation of plug-in vehicles, it may not have the ability to charge them when they all plug-in and demand energy at the same time — say 6 pm every weekday.

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For more, see today’s post: 2018: The Year of Petroleum Independence?

Or get involved with wecansolveit.org.

The US Energy Information Agency does a fine job of keeping statistical records of energy sources - though its predictive arm has had some real miscues over the years. The graph associated with this article provides a picture illustrates that the use of oil for electricity in the US may be small now, but that is because it was replaced by nuclear fission during the growth years in the 1970s and 1980s.

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A not so new energy concept has been unveiled by EnviroMission Limited in South Melbourne, Australia, and it harkens back to an idea demonstrated more than 20 years ago. It is basically small amount of panels on the ground, centering around a massive tower. The collectors warm the air near the surface, and then channel it up the tower. Turbines placed at the bottom make electricity created by the updraft.

“It’s a combination chimney, windmill, greenhouse,” said Kim Forté of EnviroMission Limited, who have designed a kilometer-high tower, and now are hoping to build it somewhere in southwestern USA.

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Hot on the heels of the announcement that Mercedes will produce electric cars, comes the news that fellow German manufacturer Volkswagen plans to produce a test fleet of plug-in hybrid electric cars by 2010.

A few months ago, to much excitement from the automotive press, the company unveiled a diesel-electric Golf but, according to VW chief Martin Winterkorn, “the future belongs to electric cars.” To help in mapping out the road to this electric future, the company have unveiled a plug-in hybrid powertrain, called the Twin-Drive, which will make its first appearance in a Golf kitted out with a 122-horsepower diesel engine, twinned with an 82-horsepower electric motor.

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Americans have a habit of framing our scientific history as a series of Great Inventors, from Eli Whitney to Thomas Edison to Afrika Bambaataa. The history books say each was prodded by Adam Smith’s invisible hand to come up with the great technological advances that have made our country a home of innovation.

There’s a problem with this mythology: sometimes there’s no invisible hand. Sometimes short-sighted government regulations give preference to bad technologies over good ones — stifling innovation and blinding us to our own ability to make progress.

Nowhere is this mythology more evident than in our energy system, the most heavily regulated and subsidized industry in the country. A host of bad regulations have made this system grossly inefficient, contributing both to global warming and to high power costs.

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With escalating oil and gas costs and growing French electricity imports, Italy is changing is stance on nuclear power. The re-elected Prime Minister Silvio Berlusconi promised on his campaign to recommit the country to nuclear power and an heated debate is now popping up from north to south.

The general impression is there is still strong local opposition for three main reasons: high construction costs, projected build times of one to two decades and no identifiable Italian community willing to see a nuclear reactor built in their neighborhood. Italy has also failed to resolve the issue of what to do with nuclear waste. A proposed dump in Basilicata region was shelved in 2003 after thousands of demonstrators staged road blocks, marches and hunger strikes.

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First Flex-Fuel Plug-in Hybrid Electric Vehicle

As part of a push by the US Department of Energy (DOE) to make plug-in hybrid electric vehicles (PHEVs) cost competitive with other cars by 2014, Ford has delivered a plug-in hybrid electric flex-fuel Escape to the DOE to join its test fleet of other PHEVs currently undergoing research and testing.

The vehicle is equipped with a 10 kilowatt lithium ion battery that can take it up to 30 miles at speeds under 40 mph before needing to fire up its fuel-fed hybrid-electric engine. After that, the hybrid-electric engine kicks in and can deliver a fuel economy of 88 mpg in the city and 50 mpg on the highway when using E85 (85% ethanol/15% gasoline blend).

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Infrastructure is a definite minus because there will be not much to talk about - bad roads, lack of electricity - yet cell phone communication knows no boundaries in any modern economy and even communities in backwater areas of the continent would go for the best connectivity.

The dilemma faced by these companies has always been how to power their base stations in an economical and environmentally-friendly way, given circumstances where no utility power is available.

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What Can You Do to Reduce Water Consumption?

Improve the water efficiency of your lawn.

For many homeowners in the southern United States, lawn irrigation is likely the largest source of residential water waste. There are many things one can do to correct this.

Adjust your irrigation controller to fit your climate conditions and landscaping. This alone can produce water savings of over 30%. Some water utilities offer water audits, so check with your local water provider to see if they offer this service. Or, find experienced landscape maintenance firms in your area.

Install rain and soil moisture sensors. Many people don’t turn off their irrigation when it rains. Also, most lawns receive far more water than they actually need when it isn’t raining. Both problems can be corrected using sensors attached to your irrigation system. See examples.

Replace existing landscaping with climate-appropriate options, keeping grass to a minimum. The biggest challenge with many yards is that they are composed of plants originally from other areas with vastly different climate conditions. The typical turf lawn can use up to 40 inches of water a year or more; many climate zones in the US have far less than that in rainfall. What most people don’t realize is that all regions of the US have native plants that are beautiful, durable, and adapted to local climate conditions. Some native grasses can provide the benefits of turf while requiring 1/3 of the water. So, if you really want to save water and also want to stand out on your block, cut down your turf use and rebuild your lawn using beautiful natives. Find landscape architects in your area who can help.

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With more than 60% of its population unable to access the power grid, Nigerian engineers are now racing to devise viable alternatives to deliver electricity to an additional 85 million people or more in less than 12 years.

An email sent to me by one Irene Faluyi-Smythe talked of an event that will rally Nigerian engineers in the Diaspora to return home and take part in engineering development that would deliver sustainable power, and I got interested.

Sponsored and hosted by the UK chapter of the Engineering Forum of Nigerians, the 14 June 2008 conference in London will be looking at means and ways of delivering sustainable power in the country.

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