Building green — Buildings are responsible for a large share
of global electricity consumption and raw materials use, but people are thinking about how to make them better.
Other studies have estimated that there was by 2015 enough renewable energy capacity to meet nearly 24 percent
of global electricity demand.
This means the renewable
share of global electricity generation (blue area, below right) hasn't really changed much over the past 20 years.
AC use is expected to be the second - largest
source of global electricity demand growth after the industry sector, and the strongest driver for buildings by 2050.
What's more, the indirect energy uses and emissions of each technology will shift over time, due to changing fuel sources, advances in manufacturing and the
evolution of global electricity supplies.
A recent Deutsche Bank report titled «Crossing the Chasm,» predicts that nearly 10 per cent
of global electricity production will come from solar over the next 20 years as costs fall steadily to compete with conventional generation.
One thousand gigawatts is the number the M.I.T. professors estimated would be needed to ensure that nuclear power provided 20 percent
of global electricity needs as well as cut emissions of greenhouse gases from power plants.
The United States represents over one -
fifth of global electricity consumption in cars, but the estimated consumption of renewable electricity is expected to be smaller than in China and Europe as a result of the lower share of renewables in the electricity mix.
The growing use of air conditioners in homes and offices around the world will be one of the top
drivers of global electricity demand over the next three decades, according to new analysis by the International Energy Agency that stresses the urgent need for policy action to improve cooling efficiency.
The results are instructive, to say the least — if they are right, PV could potentially provide fully
half of global electricity by 2050.
«Coal - fired power plants produce almost 40 per cent
of global electricity today, making carbon pollution from coal a leading contributor to climate change,» said the declaration issued by the alliance on Thursday.
Last year, EP and I were the first to note that the share
of global electricity coming from clean energy had — against the hype — actually declined, in part due to the closure and cancellation of nuclear plants.
Similarly, IEA figures show, between 2015 and 2016, the percentage
of global electricity produced by wind and solar rose from 4.5 % to 5.2 % — a major jump in a single year.
A DOSE of X-rays during cable manufacture could solve a problem that is hampering the
formation of a global electricity grid («The International Grid», New Scientist, 8 July).
The annual potential of solar energy far exceeds the world's energy consumption, but the goal of using the sun to provide a significant
fraction of global electricity demand is far from being realized.
Conservative estimates predict about 55 - 75
GWe of global electricity will come from SMRs by 2035, equivalent to over 1000 NuScale Power Modules, it added.
The 2014
report of the Global Electricity Initiative (GEI) identifies the untapped opportunities for electricity utilities to further deliver a low - carbon future.
The point is not to diminish the accomplishments of VRE to date, but simply to note that even with its headlong recent growth it remains a small
part of global electricity — 3.3 percent in 2013.
Here's a
graph of global electricity market shares from 1980 to 2014, compiled by Jessica Lovering, featured in a post by Jesse Jenkins:
A key to reducing carbon emissions will be the near complete decarbonization
of the global electricity system, which is today's largest source of greenhouse gasses, and remains largely dependent on fossil fuels.
Statistics published by Power Compare has established that the annual electricity consumption for mining Bitcoin stands at 29.05 TWh which is equal to 0.13 %
of the global electricity requirement.