“Ammonia?”
I was
puzzled. Our host in Copenhagen is a
scientist involved in energy production and storage, including storing wind
energy during times when demand is low while production is high. We were touching on that subject during a
conversation that was mostly about politics.
“How does ammonia
work?” I asked. As usual, I didn’t think
of the questions I should have asked until a long time after the opportunity
was gone.
John explained
how ammonia, nitrogen, increases plants’ efficiency in converting sunlight to
food and fiber through photosynthesis. I
knew that, from using anhydrous ammonia as fertilizer in the days before going
organic.
He went on to
explain that excess electricity can be used to extract nitrogen from the
atmosphere. Most (if not all) ammonia
used by American farmers comes from oil, as do many other fertilizers. The question I should have asked is, how is nitrogen
extracted from the air?
A
google check shows two or three methods.
One involves lowering the temperature of air until the gasses turn to
liquid. The various gasses turn to
liquid at different temperatures, which allows the elements to be separated and
collected.
Anyway, the
excess electricity generated during the slack demand times is (or will be) used
to produce nitrogen fertilizer. Since petroleum
is not used in the product or the process, the overall carbon footprint is
reduced. It’s not exactly a battery,
which we think of as an energy storage method, but if the point of renewable
energy is to reduce use of fossil fuel, it works.
Fossil fuels may
be necessary to generate power during peak demand or when wind and solar aren’t
keeping up, but that use is offset by growing plants that extract CO2 and
produce oxygen.
Yes , Denmark is
a green country. In the next two or
three years, all vehicles in Copenhagen will be electric, no carbon emitters
allowed. Already, 48% of Denmark’s
electricity is provided by wind power, most of the wind towers in the sea. Solar panels top some roofs of buildings, but
we saw no solar farms covering many acres as we are beginning to see in the U.S.
The plan is for
Denmark to be carbon-neutral by 2030.
The push for clean energy seems to have produced a minimalist tendency
among the populace. I’m basing my judgment
on three kitchens I observed.
When you look at
the kitchens, you see no “mod-cons” (British for modern conveniences). Where is the refrigerator? The dishwasher?
There they are,
behind cabinet fronts.
Microwave ovens
are apparently not exactly verboten, but apparently, eschewed. I never saw a single microwave. The man who provided our first breakfast used
a microwave in the back room to warm up our pastries. I couldn’t see it. I heard it.
One of our hosts
confessed to keeping a microwave in his garage. Something you didn’t want
anyone to see? The other was a bit
disdainful at the mention of such a device.
Hmmm. I always thought a
microwave was super-efficient at heating things, more so than conventional
methods. Wouldn’t it be a useful tool in
reducing energy use?
Becoming green
also seems to be pushing a tendency, maybe not exactly towards vegetarianism,
but away from beef. Pork and fish are
still okay. We did see ads saying, “Isn’t
it time to quit?” like anti-cigarette ads, only they were accompanied by
pictures of meat.
We suffered no
shortage of meat, especially fish. We
had some great meals. The beer was good,
too.
Our stay in Denmark really was the highlight
of our trip. Staying in a private home,
getting to know folks beats staying in a hotel.
You get to see how the common folk live.
Staying in a hotel and visiting tourist sights brings you in contact with
people involved in the tourist industry.
Nearly everyone
we met spoke English, including the workers in a local pizza shop and the
neighboring grocery store. They were
patient with us as we fumbled with currency and the change as we tried to pay
for our purchases.
We scheduled our
departure from Denmark for Monday morning, a mistake. Monday morning is a zoo in Copenhagen,
too. Our hostess decided the best way to
get us to the airport on time was via train rather than to try to drive us or
go by taxi. She took us to a nearby
station, helped us purchase tickets through the machine, and saw to it we got
on the right train.
Airports are
airports. They are not conducive to
happy traveling. We managed to get on
the right plane (we were the last ones on and nearly missed it due to not
understanding the announcement) and off to Ireland where we would negotiate
another airport and be all on our own.
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