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The grid is good | Geoff Walker | TEDxQUT


[Music]

[Music] here in sunny Queensland we are leading

here in sunny Queensland we are leading

here in sunny Queensland we are leading Australia in rooftop solar photovoltaic

Australia in rooftop solar photovoltaic

Australia in rooftop solar photovoltaic panels mostly on the ruse of individual

panels mostly on the ruse of individual

panels mostly on the ruse of individual homes and that’s one home in three which

homes and that’s one home in three which

homes and that’s one home in three which is a massive mountain it it has led to

is a massive mountain it it has led to

is a massive mountain it it has led to some people wondering whether in fact

some people wondering whether in fact

some people wondering whether in fact with batteries they could exit the grid

with batteries they could exit the grid

with batteries they could exit the grid go off-grid and go it alone now this

go off-grid and go it alone now this

go off-grid and go it alone now this caused alarm within the electricity

caused alarm within the electricity

caused alarm within the electricity industry they wondered whether it would

industry they wondered whether it would

industry they wondered whether it would cause an electricity grid death spiral

cause an electricity grid death spiral

cause an electricity grid death spiral with the death spiral those who are

with the death spiral those who are

with the death spiral those who are wealthy who can afford the solar and the

wealthy who can afford the solar and the

wealthy who can afford the solar and the batteries and have the knowledge power

batteries and have the knowledge power

batteries and have the knowledge power their own homes and leave the grid those

their own homes and leave the grid those

their own homes and leave the grid those who are left behind the renters the the

who are left behind the renters the the

who are left behind the renters the the poor perhaps those who are ill informed

poor perhaps those who are ill informed

poor perhaps those who are ill informed as left and with fewer of them there

as left and with fewer of them there

as left and with fewer of them there they are now in a position where they

they are now in a position where they

they are now in a position where they are paying for the fixed price grid a

are paying for the fixed price grid a

are paying for the fixed price grid a vicious circle ensues where the numbers

vicious circle ensues where the numbers

vicious circle ensues where the numbers fall and costs spiral out of control I’m

fall and costs spiral out of control I’m

fall and costs spiral out of control I’m here today to tell you that renewable

here today to tell you that renewable

here today to tell you that renewable energy and the batteries are great they

energy and the batteries are great they

energy and the batteries are great they are the way of the future but I’m also

are the way of the future but I’m also

are the way of the future but I’m also here to show you that the electricity

here to show you that the electricity

here to show you that the electricity grid is vital doubt to that future and

grid is vital doubt to that future and

grid is vital doubt to that future and it is vital it is the way that we will

it is vital it is the way that we will

it is vital it is the way that we will be able to achieve a hundred percent

be able to achieve a hundred percent

be able to achieve a hundred percent renewable future I give you three

renewable future I give you three

renewable future I give you three reasons today why the grid is good why

reasons today why the grid is good why

reasons today why the grid is good why we should stay connected to it and why

we should stay connected to it and why

we should stay connected to it and why we should keep paying for it reason one

we should keep paying for it reason one

we should keep paying for it reason one the electricity grid brings us

the electricity grid brings us

the electricity grid brings us resilience and brings us economies of

resilience and brings us economies of

resilience and brings us economies of scale now let me give you an example of

scale now let me give you an example of

scale now let me give you an example of another renewable energy another

another renewable energy another

another renewable energy another renewable resource which you probably

renewable resource which you probably

renewable resource which you probably already

already

already familiar with and maybe even collecting

familiar with and maybe even collecting

familiar with and maybe even collecting and that’s water we can collect water

and that’s water we can collect water

and that’s water we can collect water with the rooves on our houses when it

with the rooves on our houses when it

with the rooves on our houses when it rains channel it through the gutters and

rains channel it through the gutters and

rains channel it through the gutters and into the down pipes the larger our roofs

into the down pipes the larger our roofs

into the down pipes the larger our roofs the more water we can collect likewise

the more water we can collect likewise

the more water we can collect likewise with solar panels on our roofs they

with solar panels on our roofs they

with solar panels on our roofs they collect the sunshine falling on them and

collect the sunshine falling on them and

collect the sunshine falling on them and the larger the solar array on our roof

the larger the solar array on our roof

the larger the solar array on our roof the more electricity we can generate

the more electricity we can generate

the more electricity we can generate from them now it doesn’t rain all the

from them now it doesn’t rain all the

from them now it doesn’t rain all the time so we need a means to collect and

time so we need a means to collect and

time so we need a means to collect and store rainwater rainwater tanks in the

store rainwater rainwater tanks in the

store rainwater rainwater tanks in the same way the Sun isn’t shining all the

same way the Sun isn’t shining all the

same way the Sun isn’t shining all the time

time

time after all it does set each day and so we

after all it does set each day and so we

after all it does set each day and so we need a means to store the electricity

need a means to store the electricity

need a means to store the electricity there and we do that with batteries and

there and we do that with batteries and

there and we do that with batteries and just as you need big rainwater tanks to

just as you need big rainwater tanks to

just as you need big rainwater tanks to hold a lot of rain you need big

hold a lot of rain you need big

hold a lot of rain you need big batteries if you want to store a lot of

batteries if you want to store a lot of

batteries if you want to store a lot of energy but as a community we are better

energy but as a community we are better

energy but as a community we are better instead to create for ourselves

instead to create for ourselves

instead to create for ourselves utilities for water and for electricity

utilities for water and for electricity

utilities for water and for electricity we are better as it as a society as a

we are better as it as a society as a

we are better as it as a society as a community to collect all the water in a

community to collect all the water in a

community to collect all the water in a water reservoir to then have a common

water reservoir to then have a common

water reservoir to then have a common water treatment plant water pumps and

water treatment plant water pumps and

water treatment plant water pumps and finally a network of pipes this is so

finally a network of pipes this is so

finally a network of pipes this is so much more efficient and more economic

much more efficient and more economic

much more efficient and more economic than every individual having their own

than every individual having their own

than every individual having their own massive water tanks and water pumps in

massive water tanks and water pumps in

massive water tanks and water pumps in the same way many decades ago the

the same way many decades ago the

the same way many decades ago the electricity grid was set up as a means

electricity grid was set up as a means

electricity grid was set up as a means of distributing electricity to an entire

of distributing electricity to an entire

of distributing electricity to an entire community rather than every individual

community rather than every individual

community rather than every individual having to generate their own electricity

this is why even today as we now have

this is why even today as we now have solar electricity solar panels on our

solar electricity solar panels on our

solar electricity solar panels on our roof and perhaps batteries we are still

roof and perhaps batteries we are still

roof and perhaps batteries we are still better to keep and stay connected to the

better to keep and stay connected to the

better to keep and stay connected to the electricity grid for the resilience

electricity grid for the resilience

electricity grid for the resilience that it brings and that brings me to the

that it brings and that brings me to the

that it brings and that brings me to the second reason why we should be connected

second reason why we should be connected

second reason why we should be connected to the electricity grid the electricity

to the electricity grid the electricity

to the electricity grid the electricity grid enables sharing if you have the

grid enables sharing if you have the

grid enables sharing if you have the solar panels on your roof the new solar

solar panels on your roof the new solar

solar panels on your roof the new solar inverter acts a bit like a pump which

inverter acts a bit like a pump which

inverter acts a bit like a pump which pushes the power from your solar panels

pushes the power from your solar panels

pushes the power from your solar panels out on to the electricity grid now if

out on to the electricity grid now if

out on to the electricity grid now if you’re at home you’re able to use that

you’re at home you’re able to use that

you’re at home you’re able to use that electricity straight away but if you’re

electricity straight away but if you’re

electricity straight away but if you’re not it’s not lost your neighbor can get

not it’s not lost your neighbor can get

not it’s not lost your neighbor can get to use it now indeed for your neighbor

to use it now indeed for your neighbor

to use it now indeed for your neighbor it’s far more efficient for them to use

it’s far more efficient for them to use

it’s far more efficient for them to use your electricity generated just next

your electricity generated just next

your electricity generated just next door than them for them to draw the

door than them for them to draw the

door than them for them to draw the electricity over many perhaps hundreds

electricity over many perhaps hundreds

electricity over many perhaps hundreds of miles from a generator generator far

of miles from a generator generator far

of miles from a generator generator far away and let’s not forget that for that

away and let’s not forget that for that

away and let’s not forget that for that home with solar panels they need the

home with solar panels they need the

home with solar panels they need the grid connection for their power each

grid connection for their power each

grid connection for their power each night so that after the Sun is set they

night so that after the Sun is set they

night so that after the Sun is set they can still have lights and be able to

can still have lights and be able to

can still have lights and be able to cook and enjoy entertainment again the

cook and enjoy entertainment again the

cook and enjoy entertainment again the other thing I want to remind you is that

other thing I want to remind you is that

other thing I want to remind you is that the grid isn’t just that connection

the grid isn’t just that connection

the grid isn’t just that connection between you and your neighbor the

between you and your neighbor the

between you and your neighbor the electricity grid stretches all the way

electricity grid stretches all the way

electricity grid stretches all the way from Adelaide all the way around to

from Adelaide all the way around to

from Adelaide all the way around to Cannes and along the way it picks up

Cannes and along the way it picks up

Cannes and along the way it picks up renewable energy generation from sources

renewable energy generation from sources

renewable energy generation from sources such as wind resources in the roaring

such as wind resources in the roaring

such as wind resources in the roaring 40s in Victoria and South Australia from

40s in Victoria and South Australia from

40s in Victoria and South Australia from water resources generating power such as

water resources generating power such as

water resources generating power such as in the snowy mountains hydro scheme or

in the snowy mountains hydro scheme or

in the snowy mountains hydro scheme or maybe solar resources from solar farms

maybe solar resources from solar farms

maybe solar resources from solar farms that are just now being built in the

that are just now being built in the

that are just now being built in the Inland New South Wales and Queensland

even though now we can choose with our

even though now we can choose with our current grid to generate our own solar

current grid to generate our own solar

current grid to generate our own solar and perhaps add batteries we are still

and perhaps add batteries we are still

and perhaps add batteries we are still better to remain connect to the grid for

better to remain connect to the grid for

better to remain connect to the grid for the diversity it brings

the diversity it brings

the diversity it brings because the grid with this diversity we

because the grid with this diversity we

because the grid with this diversity we can have electricity for all regardless

can have electricity for all regardless

can have electricity for all regardless of the time of day and regardless of the

of the time of day and regardless of the

of the time of day and regardless of the weather in any one region the third

weather in any one region the third

weather in any one region the third reason that I want to show you why the

reason that I want to show you why the

reason that I want to show you why the electricity grid is good is because the

electricity grid is good is because the

electricity grid is good is because the electricity grid future-proof sus and

electricity grid future-proof sus and

electricity grid future-proof sus and allows the growth and expansion and the

allows the growth and expansion and the

allows the growth and expansion and the single best example I can give you of

single best example I can give you of

single best example I can give you of that our electric cars Australia

that our electric cars Australia

that our electric cars Australia Australia’s electricity grid puts it in

Australia’s electricity grid puts it in

Australia’s electricity grid puts it in the position for it to switch to

the position for it to switch to

the position for it to switch to electric vehicles vehicles which are

electric vehicles vehicles which are

electric vehicles vehicles which are clean quiet smooth usually often these

clean quiet smooth usually often these

clean quiet smooth usually often these days high performance but best of all so

days high performance but best of all so

days high performance but best of all so easy to fill up all you have to do is

easy to fill up all you have to do is

easy to fill up all you have to do is plug them in at night exactly the same

plug them in at night exactly the same

plug them in at night exactly the same way you’re used to doing with your

way you’re used to doing with your

way you’re used to doing with your mobile phone and the best thing of all

mobile phone and the best thing of all

mobile phone and the best thing of all is that if that energy that electricity

is that if that energy that electricity

is that if that energy that electricity which is recharging them is from

which is recharging them is from

which is recharging them is from renewable sources then that vehicle

renewable sources then that vehicle

renewable sources then that vehicle becomes a zero emission vehicle

ultimately the electricity grid is our

ultimately the electricity grid is our means to power our schools our hospitals

means to power our schools our hospitals

means to power our schools our hospitals our shops our industries and provide

our shops our industries and provide

our shops our industries and provide power for those apartment blocks I

power for those apartment blocks I

power for those apartment blocks I mentioned earlier even as we add

mentioned earlier even as we add

mentioned earlier even as we add batteries perhaps or solar panels we are

batteries perhaps or solar panels we are

batteries perhaps or solar panels we are best to stay connected to the grid for

best to stay connected to the grid for

best to stay connected to the grid for the diversity and the resilience and the

the diversity and the resilience and the

the diversity and the resilience and the economy that it provides us us and our

economy that it provides us us and our

economy that it provides us us and our society as a whole now it’s my hope that

society as a whole now it’s my hope that

society as a whole now it’s my hope that as we keep adding renewables to our

as we keep adding renewables to our

as we keep adding renewables to our electricity grid the perhaps we will get

electricity grid the perhaps we will get

electricity grid the perhaps we will get to a point that we have such an

to a point that we have such an

to a point that we have such an abundance of renewable energy that it

abundance of renewable energy that it

abundance of renewable energy that it becomes too cheap to meter let me just

becomes too cheap to meter let me just

becomes too cheap to meter let me just say that again

say that again

say that again you cheap to meter can you imagine well

you cheap to meter can you imagine well

you cheap to meter can you imagine well perhaps you can who has a mobile phone

perhaps you can who has a mobile phone

perhaps you can who has a mobile phone or an internet plan these days where we

or an internet plan these days where we

or an internet plan these days where we pay purely for the connection but not

pay purely for the connection but not

pay purely for the connection but not for the amount we use it’s uncapped it’s

for the amount we use it’s uncapped it’s

for the amount we use it’s uncapped it’s unlimited

unlimited

unlimited perhaps our electricity grid with

perhaps our electricity grid with

perhaps our electricity grid with renewables on it with us all connected

renewables on it with us all connected

renewables on it with us all connected can be the same as this and fixed-price

can be the same as this and fixed-price

can be the same as this and fixed-price uncapped connection your electricity

uncapped connection your electricity

uncapped connection your electricity grid is your means of providing

grid is your means of providing

grid is your means of providing providing us with a way to a hundred

providing us with a way to a hundred

providing us with a way to a hundred percent renewable energy future it is

percent renewable energy future it is

percent renewable energy future it is the best way for us to stay connected

the best way for us to stay connected

the best way for us to stay connected for ourselves and for our society

”

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