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Issue 12
May 2008
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PDF - 512kB)
A Publication of Sustainable
Solutions for all of BC’s Energy Needs
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Editor's
Introduction
It has become clear that the coming years
will require significant change in the ways we generate
and consume energy, both in British Columbia and around
the world.
The year 2020 is often embraced as a focal
point for sustainability initiatives, as it is a target
that is simultaneously distant enough to allow measurable
change, but near enough to convey a strong sense of
immediacy.
This issue of the Joule examines ideas
about life in the year 2020 through the eyes of six
leaders and activists in BCs sustainable energy
and environmental movements. While each of their articles
is written from a unique perspective, all highlight
the concept that our conversion to a sustainable energy
society will be brought about not only by technological
advances, but by simple - yet meaningful - changes in
the way we live our lives.
- Josh Moncrieff, Editor
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Biomes in Cornwall, England.
www.edenproject.com
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Life
in the Year 2020
By Jane Sterk
Jane Sterk is Leader
of the BC Green Party
Our journey towards achieving a more sustainable society
by the year 2020 required the effort to overcome business
as usual inertia and chronically expanding emissions.
As strategies were implemented, we discovered off-the-shelf
solutions, and change wasnt as hard as predicted. Early
successes unleashed such creativity and ingenuity that more
was achieved than expected, and progress has created a sense
of excitement and community.
In the year 2020, we are at virtual full employment and our
society is creating meaningful jobs that use the talent of
our highly-educated and competent workforce. Weve expanded
post-secondary programs in engineering, scientific and ecological
disciplines. Our technical programs turn out world class renewable
energy grads who work holistically with everyone from urban
planners to industry representatives. Reflecting renewed community
values and priorities, education in the arts, humanities and
social services is popular.
The government used its legislative, regulatory, enforcement,
taxation and monetary powers to effect change. Land use and
resource management decisions were made from a bio-regional
and environmental assessment
perspective. This assessment was science, evidence, ecological
restorative and community benefit based. It dramatically changed
all resource and extractive industries and brought a renaissance
in fisheries and forestry as we eliminated industrial practices
and moved to small scale, sustainable management. Mining has
decreased as the industry was unable to meet the stringent
waste elimination requirements of the environmental assessment
process, and re-use drove innovation.
The relationship with and funding of municipalities and regional
districts has changed so that most climate change mitigation
effort comes through local initiatives. Policies for everything
from transportation to health care, forestry
to social services, energy to food production, is localized
with the intent of achieving distributed, self-sufficient,
ecologically and socially sustainable outcomes.
Importantly, the government stopped its consult industry
first policy. Perverse subsidies to polluting industries
were phased out and incentives put in place to foster innovation
and to assist in the transition toward carbon
neutral enterprises. Forward thinking companies saw almost
immediate financial benefit from eliminating waste
(energy, materials, water, and processes) which is funding
more difficult to achieve goals. Large emitters that resisted
change have not survived.
On the climate change file, the Legislature is working from
a collaborative model. Partisan behavior diminished after
we adopted BC STV or Single Transferable Vote. MLAs then found
they enjoyed working in fluid coalitions that
fostered good policy. The civil service is recognized for
its professionalism. Government consults with academics and
community leaders to ensure policy meets evidence-based criteria
and to provide both innovative thinking and nonpolitical oversight.
The people of the province see 2020 as a stage along the
way to a primarily car-free, locally and regionally selfsufficient
and sustainable society free from waste. New buildings are
energy producers and existing buildings are in transition
to becoming carbon neutral. A huge investment in public transportation,
including rail, is paying off with
locally responsive and affordable transportation systems.
Were healthier because we bike and walk, eat locally
produced organic food and have eliminated toxins from our
environment. BC is a place of hope.
Cover image of Biomes in
Cornwall, England.
www.edenproject.com
Transport
in the Year 2020
By Guy Dauncey
Guy Dauncey is President of the BC Sustainable
Energy Association.
False Creek
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It is a wet morning for cycling, but Im well protected,
and the Trans Canada Trail from False Creek to Burnaby is
safe and easy, so I can dictate this into my ISpeak as I ride.
At 72, Im proud still not to be using the electric drive
that has made cycling easy for so many. In summer, most e-bikers
charge their bikes from their own solar PV, tapping a tiny
current from their rooftop systems.
Im heading to a big international conference on transport.
Globally, were expecting a million participants, including
300 locally and 5,000 in regional centres around BC. The revolution
in real-time holographic image projection that started in
2007 is amazing - I will soon be seeing global sustainability
leaders in full dimensional reality, live from Beijing, Bogota
and other world centres.
The Trail is busy, but the thousands of bikes
roll along smoothly. Whenever we cross a busy road, flashing
lights along the Trail indicate the speed needed to catch
the lights on green. Weve already passed the Metro Vancouver
goal of 25% of commute trips being made by bike by 2020, and
now were aiming for 50% by 2030, a level Copenhagen
passed five years ago, en route to its city-wide goal of zero
carbon emissions by 2030.
The impact on the roads has been really noticeable.
As well as cycling, there has been a massive increase in people
commuting by bus, SkyTrain, and long-distance luxury coaches.
The goal for these modes - 25% by 2020 - has also
been passed, thanks partly to Bus Rapid Transit, with its
dedicated lanes, comfortable raised-shelter platforms that
make for easy loading, and GPS-based electronic timetables.
Whenever we ride the bus, SkyTrain, SeaBus or ski-lift, our
TravelSmart cards give free travel to all local residents,
prepaid on our city taxes for $250 a year.
The other big factor that is weaning people
out of their cars is the cost of driving, especially if you
drive alone. Its
not just the gas at $5 a litre, including the carbon tax.
Its also the road-pricing. Following the 2015 Global
Transport
Treaty, every car now carries a transponder that receives
signals from the road, and once a month, you get a bill.
The busier the road, the higher the bill, except the low carbon
electric and plug-in hybrid electric vehicles that are<
exempt.
Because of the cost, ridesharing has become
very popular. Most neighbourhoods have local ridesharing webpages,
and if by chance theres no match, TravelSmart Plus includes
membership in the carshare club. Since the carshare vehicles
are all GPS-linked, its easy to see where they are from
the clubs web-map.
Overall, there has been a noticeable decline
in traffic on the roads, making it easier for Metro Vancouver
to create
dedicated bus lanes and generous bike lanes, like the one
Ive been using. Im nearly there now, so Id
better turn off
my I-Speak, and get ready for this big global event!
Letter
from the Lighthouse in 2020
by Helen Goodland
Helen Goodland is Executive Director of
the
Lighthouse Sustainable Buildings Centre in Vancouver.
Real estate and construction together comprise about a third
of the BCs GDP. It also emits approximately 30% of the
provinces GHG emissions. It is a massive industry
that exists on a project-by-project basis, is practical to
the core and functions best by visualization.
To capture a builders view of how things will have
changed over the next 12 years, we have opted to simply pull
on our muddy-boots and take a virtual tour of some examples
of building projects in 2020. Well be dropping in on
a design team working on a mixed use residential commercial
building in Surrey. Well visit a home renovation construction
site, and then well head over to a 20 year old downtown
condo as they ponder their energy efficiency initiatives.
These project examples were selected because we believe they
are representative of the issues and challenges facing the
industry, and have the greatest impacts in terms of energy
consumption.
First up is the mixed-use project in Surrey. It is worth
noting that the city now embraces the benefits of eco-industrial
networking principles as a means to better manage resource
flows. Surrey has recently abolished conventional zoning in
favour of a more flexible policy mechanism that encourages
the trade-offs between the cooling-dominated commercial with
the heating-dominated residential.
The first thing we notice is that the project team is working
with sophisticated building information modeling software.
Multi-dimensional images are presented that capture realtime
envelope thermal imaging, carbon emissions, interior and exterior
air-flows, occupant activity patterns and more. The team is
discussing the impact of window orientation on the size of
the biomass combined heat and power plant. After almost 10
years of negotiations, the region has finally allowed building-scale
wood waste to fuel energy systems. This is largely triggered
by the glut of biomass created by the pine beetle fall-down
that began back in 2014. Carbon neutrality is a requirement
for all new construction, and Surrey, now a chartered municipality,
has enacted a glazing ratio by-law. No building can exceed
60% window area as a proportion of the total wall surface.
Next, we swing by a home renovation project in New Westminster
to check up on the results of the municipal
energy inspectors report. The homeowner is planning
to sell her 100 year old heritage home and needs to get the
home to EnerGuide 80 before it is allowed to go on the market.
For her, it is a relatively simple upgrade of windows,
blowing in additional insulation and then hooking up her original
hot water heating system to the neighborhood hot
water loop. Amazing that 100 year old technology still works!
The energy inspector is reviewing the results of a
pressure test on her hot water pipes everything looks
good. A successful inspection means she will be able to
access the provincial and utility grants. She is lucky - for
those homes still heated by forced air, the retrofits have
proven messy and expensive.
Last, well take a peek at the battles facing the property
manager of a 30-storey concrete high-rise condominium.
The building is 20 years old and some of the metal wall studs
have started to rust from condensation. Owners have
been having a tough time selling. Vancouvers residential
property market has been struggling since 2010 and the
condo market has been particularly badly hit. The citys
air-con ban has resulted in an exodus of investor-owners
who have had trouble renting their suites - particularly the
south-facing ones.
With the shift in demographics, there are fewer renters in
downtown Vancouver the savvy ones are looking
for protection against spiraling energy bills. Families, meanwhile,
have fled up the Fraser Valley to more affordable
housing. Strata councils are faced with the tough decision
to completely re-skin their building, the idea being to
reduce the proportion of glass from 80% to 60%, insulate the
solid wall areas including slab edges and install opening
windows. The electric baseboards will be taken out and a new
central hydronic system will be installed with capillary
tubes adhered to the concrete walls.
OK, so the folks at Light House had fun making this up. Clearly
2020 is a time for change. Even now, new services
and new economic imperatives are shaping our region
not always for the better. At Light House we watch these
trends closely and report on them regularly though our Market
Insights series. We can be found on the web at www.
sustainablebuildingcentre.com.
Green
Education in 2020
by Rick Kool
Rick Kool is Program Head for the Master
of Arts program
in environmental education and communication
at Royal Roads University.
I was talking with my granddad the other night about just
how different school is today from when he was a student.
One thing was clear... his high school, which sits at the
end of a sand-spit in the Atlantic Ocean, is likely to become
a future hazard to navigation as the slow rise
of sea level progresses. Nowadays, were so much more
aware of the
impacts of the past 200 years of fossil fuel use that everything
has changed, including even how my school works.
The big change, I guess, is that I only go to school on occasion.
Thats not to say that Im not learning things or
being able to hang out with my friends, but the days of thousands
of kids using lots of fossil fuels to move long
distances to large buildings are in the past. Weve moved
more into our community now, with many more of our
classes taking place in our neighborhood. Our teachers live
close by and can usually cycle in to join us for seminars
and discussions or regular teaching. For subjects that cant
be found in the hood, like physical education or orchestra,
we use public transport to get to school
if we cant
use our bikes. Of course, there are zillions of bikes everywhere,
much like they have had in places like Amsterdam for a long
time already, as kids really understand our obligation to
cut back on carbon emissions. Sure, there are still some browns
out there, but most kids are green and proud of being able
to do their part to let the Earth system heal itself.
We want to be part of the healing, most of us, and so part
of our school work is helping this out! A big part of the
school grounds, which used to be grass that had to be mowed
using a gas-guzzling mower, are now food gardens. There cant
be anything better than going to school and taking care of
a garden that you know will feed you someday (soon!). Learning
to grow your food and care for the soil that provides it is
an important lesson that starts when youre young, and
I, at least, hope that I never stop learning about this. The
woodlot is small still, but in a hundred years well
have a young forest that should attract all manner of critters.
Weve also turned part of the school roof into a greenhouse
where we grow stuff to eat and carry out experiments for our
biology classes. The physics nerds get to play on the roof
too, with their photovoltaic experiments and the solar hot
water heaters that they seem to be endlessly tinkering with
(no, the physics nerds do not play with nuclear energy devices!).
We do a lot of environmental monitoring in the community,
keeping projects that began in the 1990s going through the
ongoing collection of data. But we know that simply collecting
data and watching things get worse and worse is like doing
a math lesson on the deck of the Titanic, measuring the change
of slope as the ship goes down. Interesting math perhaps,
but there are more important things to do. In our case, weve
got to be engaged in helping things right themselves!
We dont have the opportunity for as much long-distance
school travel, like trips to Russia or France, but using the
slowly expanding train systems and again taking our bikes
with us, we can explore a lot more of our home! How
many kids in the year 2000 would have ever peddled from Victoria
to Port Hardy learning about the Island we live
on? Now, nearly everyone will do this before they finish high
school
and many kids take on cycling as a lifetime
hobby and means of getting from place A to place B.
Weve got a lot of work to do
or maybe, weve
got a lot of work to undo! Learning in schools had better
be part of the solution to the problems created over the past
centuries if my kids are going to be able to enjoy the wonders
of this province and the world around us.
British
Columbia Vision 2020
By Britt Karlstrom
Britt Karlstrom has just completed an Entrepreneurial
degree from Royal Roads University,
and is currently developing the BCSEAs Green
Landlords project.
She lives in Oak Bay with her husband and son,
and is an active member of the Oak Bay Green Committee.
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Energy
requirements have been reduced through transport initiatives
that assist people to live, work and play through an
interconnected web of technologically advanced complete
communities.
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In 2020, British Columbia is transforming from
a society dependent on non-renewable energy towards the goal
of being a
sustainable post-carbon society, driven by
passion, science and technology. Economists allude to the
possibility of the oil and gas industry becoming a secondary
player in the energy industry helping to move
technology forward, and supply manufacturers with the necessary
fuel to meet the worlds growing demand for green energy
products. A new kind of community has emerged along BCs
landscape: transportation, housing, technology, energy, are
all going through a period of change. Technologically complex,
yet fundamentally simpler systems, have grown sustainable
communities along BCs coastlines, throughout northern
villages and into the hearts of urban centers.
Transportation has become one of the most significant
forces shaping sustainable communities. The ambitious transit
plan rolled out in 2008 that set provincial, regional, and
municipal initiatives for Transportation Demand Management
strategies was a significant contributor to reducing emissions
by 4.7 million tonnes by 2020. Energy requirements
have been reduced through transport initiatives that assist
people to live, work and play through an interconnected web
of technologically advanced complete communities.
In 2020 rapid transit takes us through dense urban corridors,
wireless technology connects us to regional ride-sharing schemes
that offer safe, convenient, and efficient transport, and
luxurious hybrid electric coaches provide transport service
to universities, airports, hospitals, tourist routes, and
high-use roadways.
With the introduction of green transit, sustainable
urban form has followed. A new kind of community is being
built. British Columbians are moving beyond home energy efficiency
as fully sustainable homes constructed to be a net source
of energy have become the latest trend in housing. Green building
in 2020 BC has gone beyond its growth phase and owns a majority
market share. The provinces emission reductions goal
of 33% has been met through municipal and provincial legislation
requiring all new construction to meet LEED certification
standards. National programs provide financial incentives
for home owners and landlords to upgrade energy-inefficient
buildings.
BCs transformation to a renewable energy
economy has been a powerful catalyst for change. Business
headlines
reflect the massive transfer of wealth caused by investment
in green technology research, and restructuring of the worlds
energy systems. BC is booming with renewed economic spirit
thanks to its strong investment in green power projects such
as tidal, wind, micro-hydro, and solar. The provinces
hydro projects have become a leading example of sustainable
resource management by following strong environmental legislation
aimed at protecting ecosystems
and by integrating the local interests of First Nations communities.
In 2020 there is a new sentiment in the air.
What was once uncertainty, fear and caution, has transformed
into rational exuberance (In Chris Turners book Geography
of Hope, rational exuberance is used to describe the Internet
revolution and the ensuing technological hype that has propelled
us into an information society. Turner comments that we must
create this same rational exuberance to move renewable energy
technology forward), and total excitement with the knowledge
that society can not only move beyond an oil and gas dependent
world, but can reach a new level of human potential that benefits
from and embraces all the best that technology has to offer.
The imagination and dreams of British Columbians have encouraged
a new kind of community, and all across the province these
new communities are thriving.
In 2020 British Columbians are learning to respect
the limitations of the natural world and the delicate nature
of
the planets ecosystems. A new business paradigm has
been created that understands how we can have and maintain
a vibrant, healthy economy, full of innovation and ingenuity,
and do so while respecting the Earths limited resources.
Agriculture
in the Year 2020
(Super Delicious BC)
by Patti Bauer
Patti Bauer is a Permaculture designer,
educator and farmer.
She is a member of the Earth Festival Society and helps to
coordinate the Salt Spring Energy Strategy.
She co-owns The Blue Raven Permaculture Farm with her husband
and son on Salt Spring Island.
The fig cutting we renegade-planted behind the
local gas station in 2008 is bursting with fruit. Over the
years
we snuck in during closing hours and filled our bellies. Everyone
with the desire to climb had the same idea, so
the EV solar charger station owner put a sign up Leave
a fruit, take a cutting, Im making jam.
This seems to be the norm now everyone
is growing their own food. Over the years the schools have
adopted
gardening programs as part of their curriculum, and the community
workshops on growing food and landscaping
sustainably have been the tool we needed to return to the
real basics of life. Permaculture has been wholly embraced,
providing our community with plants serving the functions
of food, fiber, timber and medicine.
The ornamental trees lining city streets have
been grafted to food-producing varieties, fruit and nut trees
abound in
our parks, and medicine grows on every street corner. The
only grass we see is a carpet of yarrow, clover,
St. Johns Wort and a plethora of wild flowers. Even
soccer field turf is made of medicinal ground covers. Childrens
playgrounds at schools and in neighborhoods are loaded with
grape pagodas, strawberry patches, corn mazes and teepee forts,
trellis beans and kiwis. The water for irrigation needs to
be pumped by kids on their seesaws. Every window and rooftop
is naturally colored with plants serving more than one function
be it food, fiber, medicine, insectiary or beauty.

Urban Garden
With such a local abundance, we no longer have
grocery shelves filled with boxes, cans, and strange chemicals.Our
community is integrated, and suburbia has regrown
itself into a permaculture paradise. The cold shelves are
now community cold storage units for all the fruit, nuts and
winter veggies we grow. The freezers look like a childs
painting as they are packed with local raspberries, loganberries,
blueberries and every other colorful berry you could imagine,
stored for winter use. Shelves are filled with local jams,
honey, nut butters, jars of veggies, meats (we have a local
abattoir), juices, you name it, all grown locally by farmers
adding value to their products. Lotions and potions made with
local organic ingredients radiate the vibrancy of life.
On the rare occasion that an exotic food hits
the shelves, it is labeled with the amount of greenhouse gases
it took to get there, and rather than have an organic
sticker, it lists each chemical used in producing it. Thankfully,
now that we understand the impact on our planet of consuming
food and products grown conventionally and in far away lands,
there isnt much demand. It rots away like in the olden
days when organic food was considered old and shriveled.
Farmers have abandoned monoculture for increased
biodiversity. Varieties of fruits, vegetables, nuts and medicine
are grown for all and extend throughoutthe season. Urbanites,
restaurants, hospitals, and local institutions are now
supplied by some of the bigger farms. Together they have coordinated
their growing season with demand. The smaller farmers find
their local markets at the community food stores, the park
on Tuesdays and Saturdays, and farm stands. Most of us now,
however, are growing our own food, and we trade yummy varieties
with our neighbors. Our community is integrated, and suburbia
has regrown itself into a permaculture paradise.
Public transit vehicles are running off methane
captured from the local composting facility. Because of the
need for local communities to utilize their waste resources
and biomass sustainably, a simple apparatus called a methane
digester has been cost-effectively replicated across the globe.
At times, heavy metals and other contaminants can be found
in this waste, so the soil by-product of the digester is inoculated
with fungi that absorb these burdens, and as a result our
public spaces have soil amendments, and the grass is always
greener.
Our local community composting facility helps
our neighbours living in high rises, as well as the lovely
restaurants that use local food and products. They are now
composting their food waste, and eager food growers are reaping
the benefits of the black gold... local soil that
is.
Thankfully our pharmacies no longer smell like
toxic fume bombs waiting to kill us. We have returned to a
time when local herbs are available at the apothecary to aide
in preventative medicine and a healthy long life provided
by our local herbalists. What true wisdom we have!
Fields of grains such as barley and oats, fruit,
nut and timber trees galore planted in guilds, veritable food
forests, pigs and chickens and sheep, ducks and cows abound.
We are wealthy beyond our wildest dreams. And to think, after
100 years, the bounty once again, sustains us all.
Urban Garden
Millijoules
by Guy Dauncey, BCSEA President
Call for a Moratorium on Coal
Reverberate Competition Grand Prize Winner
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U.S. Activists Put Coal in Gaol
The global coal industry thinks it has the answer to the
worlds energy crisis. Theyd best think again,however,
now that the power of the climate activism has turned its
attention to the worlds dirtiest industry. In 2006,
US power utilities had 150 coalfired power plants in the pipeline
but in 2007, 45 of them were canceled or put on hold.
Wall Street investment bankers have said they will start evaluating
the climate risk that coal poses from future carbon taxes
and/or cap and trade requirements. If the money dries up,
the plants cant be built. The US Federal government
has also suspended its loan program for coal-fired power plants
in rural areas (worth $1.3 billion since 2001), and in a non-related
move has withdrawn from the planned FutureGen Clean Coal project
that was supposed to demonstrate how carbon capture and storage
could happen, citing high costs.
This is just the beginning, however. China built 100 GW of
new coal-fired power plants in 2006, and the US still has
100 plants in the pipeline. One of the champions in the fight
against coal is Architecture2030, which argues that if we
plan to make all new and renovated buildings carbon neutral
by 2030, we wont need the power.
See www.architecture2030.org/current_situation/stop_coal.php.
Canadian Company Stores Wind in Vanadium
Germany had 22,000 MW of installed wind power in 2006, generating
8% of its electricity, but it doesnt need to store the
power since the European grid can absorb every kWh it delivers.
Not so for Ireland, which has 1,000 MW of wind power and
is planning to have 4,300 MW by 2020. It needs a way to store
the energy for winter nights when the wind is blowing a storm
but everyone is asleep.
Enter the Richmond company, VRB Systems, which is providing
a 2 MW flow battery to a 32 MW wind park in Sorne Hill, Donegal,
in the far north of Ireland (immediately west of Northern
Ireland). The battery, developed in Australia in the 1980s,
generates a current by putting large amounts of positively
charged electrolytes in a vanadium sulphate solution in motion
between positive and negatively charged electrolytes.
The battery can be deep-cycled 14,000 times, and can make
energy from wind 95% constant. See
www.vrbpower.com. (Thanks to www.renewableenergyworld.com,
a great source of current info.)
PS. In mid-March, the winter storms that blew across Europe
increased so much extra power that they drove down the spot
price of power by 12%.
German Law Puts Green Heat in Homes
Its called the Erneuerbare-energienwarmegesetz
the Renewable Energies Warm Act and starting on January
1st
2009, all new homes in Germany will be required to use renewable
energy to meet 14% of their total needs for heat and hot water.
And thats not all: all remodeled houses will have to
meet the same standard, and by 2010, all existing houses must
get 10% of their heat from renewables. To help with the cost,
the German government is
allocating $517 million per year in grants for homeowners
to buy solar hot water systems, wood pellet stoves, and heat
pumps (the equivalent of $27 million a year in BC).
In the state of Baden-Wurttemberg, all new homeowners must
get 20% of their heat from renewables starting April
1st 2008. And watch out if you dont comply you
could be hit with a fine as high as $740,000. At the same
time, the German government is launching a program to help
homeowners improve their insulation, and is bringing in an
energy-rating system for all new homes. (Thanks again to www.renewableenergyworld.com.)
Illinois Tests Plug- In Hybrid EV Impact on the Grid
If all our vehicles were Plug-in Hybrid Electric Vehicles
(PHEVs), how much extra power would they consume? The
Argonne National Laboratory asked this hypothetical question
for the grid in Illinois, where night-time power is
cheaper than day-time, assuming in Scenario A that 12.5% of
the lightduty vehicles were PHEVs and they all
charged up at night, and in Scenario B that 25% were PHEVs
which charged both night and day. Overall, if 100% of the
light-duty vehicles were PHEVs, it would cause a 38.4% increase
in power demand. The impact on price was hardly noticeable
in Scenario A, but in Scenario B the day-night price differential
was leveled, and there were
higher prices at particular times of the year.
In Illinois, because most of the additional load would be
met by coalfired power, the use of PHEVs would increase CO2
emissions from coal. Other studies have shown that PHEVs cause
a net CO2 reduction, since they burn that much less oil.
Marine Turbine
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British Company Scores Tidal Goal
In 2003, the British company Marine Current Turbines installed
a small experimental tidal flow turbine off the north coast
of Devon, England. It operated for three years through big
winter storms without any significant technical failures,
and proved the feasibility of the technology. In March 2008
the next generation turbine, called SeaGen, four times larger,
with a capacity of 1.2 MW, was installed in the waters of
Strangford Lough, in Northern Ireland, where the current can
exceed 7 knots. If all goes well, the company will move onto
its next project, a tidal farm of 7 SeaGen turbines rated
at 10.5 MW, off the coast of Anglesey, in North Wales, which
it hopes to start operating in the year 2012.
Professor Stephen Salter, from Edinburgh University, who
has been working in the field for 30 years, estimates that
the Pentland Firth, between the Orkney Islands and the north
Scottish mainland, could generate up to a quarter of
Britains electricity, with 2.5 million cubic metres
of water passing at up
to 12 knots every second. See www.marineturbines.com.
(Thanks to the Independent.)
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