renewable energy Flashcards
where does renewable energy come from
from resources that are essentially inexhaustible
what are some sources for renewable energy
wind, solar, wave/tidal, geothermal, hydropower, and biomass
why is renewable energy a mitigation strategy
renewable energy sources do not produce greenhouse gas emissions, making them a mitigation strategy for climate change
how many countries have renewable energy targets
over 160 countries, including australia, have renewable energy targets driven by the Paris Agreement, which aims to limit global average temperatures rise
how much of global power capacity is based on renewable energy
one third
how much do governments spend a year subsizing fossil fuels
US$ 600 billion which is five times the amount spent on clean or renewable energy
what has happened to the coal plants since the pair’s agreement
over 75% of the worlds planned coal plants have been abandoned since the signing of the Paris agreement
what is coal responsible for
coal is responsible for 46% of global carbon dioxide emissions and has negative impacts on the environment and peoples health
why have renewable energy cost been declined
due to improvements in technology, economies of scale and competitive supply chains
what will China, Europe, USA and India account for
80% of the expansion of renewable energy capacity
what is the cheapest source of new energy generation
wind or solar
what does Australia aim to do
Australia aims to have 50% of its electricity derived from renewable sources by 2050, with a surge in the installation of rooftop solar panels and renewable energy schemes at state levels
what sources of renewable energy does Australia use
Australia use a wide range of renewable sources, including hydro, wind, solar, and bio-energy
whats is Australias large-scale renewable energy target (LET)
it incentivizes investment in renewable energy power stations, and there is a small scale renewable energy scheme for households and businesses
what do renewable energy need to do
they need to have an impact on high greenhouse gas emissions sectors like electricity and heat production to mitigate climate change
why is agriculture a challenging sector to address
due to its significant contribution to the Australian economy
what is samso island in Denmark
became the worlds first renewable energy powered island in 2021, with wind energy production doubling between 2009-2013
what is Dogger Bank
is an offshore power source expected to be complete in 2026 and will be the world’s largest. it can power the equivalent of 6 million homes annually
what has happened to wind energy production costs
they have decreased with onshore and offshore wind energy declining by 13% and 9%, respectively between 2019 and 2022
how is power transmitted from dogger bank
high voltage direct current technology is used to transmit power from dogger bank which is efficient and minimises power loss over long distances
what is the belief about the turbines at dogger bank
the 25-year lifespan of the turbines at dogger bank can be extended by at least ten years
what are some critiques say about dogger bank
some critiques of the program include the fact that dogger bay is a special conversation area for harbour propose, which has been accounted for in the environmental assessment and application
what is rottnest classified as
is a class A nature reserve focused on ecotourims
what did the state government announce in relation to Rottnest Island
$62 million for upgrading energy and water infrastructure on the island in 2022
what does the plan for rottnest island include
the plan includes renewable powering 75% of the islands energy needs, abating 4,000 tonnes of carbon emissions annually.
the plan involves doubling solar capacity, replacing the wind turbine with more efficient units, installing a battery and upgrading the power distribution network
what is Rottnest Island sustainability of this water source
Rottnest island has its own desalination plant and the solar upgrades will increase the sustainability of this water source
what does the Rottnest Island app show
showing real-time renewable power generation and information in reducing ecological footprint
what was the paris aggrement
The Paris Agreement, often referred to as the Paris Accords or the Paris Climate Accords, is an international treaty on climate change. Adopted in 2015, the agreement covers climate change mitigation, adaptation, and finance
