i'm just clicking i am a system that's of energy policy here at the ohio
state university where i have a joint appointment between the department of civil environmental and
genetic engineering and the journal and public affairs and recently i've gotten into investigating innovative
ways to use carbon dioxide two
produced geothermal energy a few years ago some researchers at the university of minnesota came
up with the idea to use you to carbon dioxide to produce due to thermal
electricity
by taking advantage of
a concept called carbon dioxide capture storage
where we
put a large device and a big power plant or other facility that produces carbon
dioxide and this device rather than allowing the carbon dioxide to be ended in the
atmosphere is captured
and then alternately injected underground where
it is stored away or sequestered the atmosphere for a long period of time
and the idea that these researchers had
well as well if we can use that karma dioxide in places
where the
she walks from the earth is high enough we could actually circulate that common backside
back up to the surface where we would withdraw he or extracted from this the
carbon dioxide and used actually indeed a power plant
as we pulled if you know the carbon dioxide would cool and we will injected
back underground
so and s that we would have a low carbon dioxide between the surface and
subsurface
more recently colleagues of mine and i have
worked and
a newer ways
to use this carbon dioxide and combined with the geothermal heat
the
results of been quite remarkable actually
one of the things that we've done as we taking advantage of
ability
two
do directional drilling underground we're actually using this the directional drilling to create concentric rings
all the wells
where we moderate the amount of carbon dioxide that's being injected
and two in order to create a
pressure conditions under the under the ground where we can actually store energy in produced
it when it's needed
so not only are we circulating the carbon dioxide through the ground after each step
bring it back up to the area and running through a power plant rows to
able to store energy in these two
concentric rings
and this allows us to then
alter or time shift
a lecture see that's produced by other renewable sources such as wind and solar
so their number of complementary is by using this view to first it enables us
to deploy this carbon dioxide capture and storage approach to keep carbon dioxide from being
admitted to the atmosphere
it's like it allows us to use these renewable resources the geothermal heat
to produce electricity and third and allows us to use the time index identity with
our resources to level eyes fluctuations in wind and solar energy output
as a consequence we expect we can make a pretty good dance
in our in this instance you to the atmosphere and help to encourage the slow
overturn of the energy system towards
those the real actors technologies to rely more and we will be