In order to avert climate catastrophe we’re going to have to make boring changes to our built infrastructure. Politicians find it hard to argue for these sorts of enhancements because voters don’t get to see a ribbon cutting ceremony; however changes to infrastructure can make a massive difference. In the USA alone enhancing electrical transmission over power lines can reduce carbon emissions comparable to the entire chemical industry. And power lines are boring. As we find ways to use power lines (and other existing infrastructure) we need to encourage and reward politicians who want to improve them to save our planet.
Technical losses are the simplest to address through the deployment of more advanced technologies and by upgrading existing infrastructure, both for long-distance transmission of power and distribution at the local level. Improvements in transmission can be made, for example, by replacing inefficient wires, using superconductors that reduce resistance in wires, and thus lost energy, and controlling power flow and high-voltage direct current.
Similarly, improvements in distribution can be achieved by better managing the load and distribution of power, as well as how distribution lines are configured. Innovation, such as adopting digital technologies for routing power flows, can also play a role.
Solutions for nontechnical losses are more challenging and may only partially cut associated emissions. The causes of high losses are diverse and can originate in, for example, extreme events, such as the hurricanes that struck Haiti and Puerto Rico in recent years, or war, or a combination of weak governance, corruption and poverty, as seen in India. For either type of losses, countries with large shares of fossil fuel generation and the most inefficient grid infrastructure can cut the greatest emissions and reap the largest environmental benefits from reducing transmission and distribution losses.
Blockchain technology stems from Bitcoin and provides a platform for change greater than Bitcoin itself. Researchers in the renewable energy industry have realized that blockchains can be used to replace outdated billing and tracking. Presently when a company produces energy it requires verification form other companies and each step eats into profits – a more efficient system would be use blockchains to verify the system by cutting out the middleman. The blockchain also provides a transparent solution that makes for easier monitoring and accountability than what’s currently provided.
The blockchain being used the example below is powered using my favourite cryptocurrency Ethereum. It is another way that distributed ledger systems mixed with computing power can alter our economies for the better.
Keeping track of renewable-energy certificates is one of dozens of potential applications of blockchain technology that could solve data management challenges in the electricity sector without disrupting business as usual, according to Morris. He and many others believe that in the long term, the technology could help transform the very architecture of the grid itself.
To unleash the potential of blockchain in the energy sector, Jesse Morris’s team at RMI has joined with Austria-based blockchain startup Grid Singularity to create a new nonprofit called the Energy Web Foundation. Earlier this month, the EWF launched its own blockchain, which Morris says is “purpose-built for the energy sector.” Based on Ethereum, the network will be a test bed for promising use cases. To validate transactions during the test, EWF will rely on 10 major energy companies that have signed on as affiliates.
Solar panels have come down in price rather dramatically in the last decade and if this trend continues it can be the death of old-school electric utilities. That is, unless the energy companies embrace solar and embed it into their system. Smart companies see the writing on the wall and others will start to falter.
So even though solar provides just 0.4 percent of America’s electricity, it’s growing at a shocking rate. Rooftop solar generation has roughly tripled since 2010. By some estimates, a new solar system is installed every four minutes in the United States.
To electric utilities, this poses a dilemma. As rooftop solar becomes more popular, people will buy less and less electricity from their local power company. But utilities still have plenty of fixed costs for things like maintaining the grid. So, in response, those utilities will eventually have to raise rates on everyone else. Trouble is, those higher electricity rates could spur even more people to install their own solar rooftop panels to save money. Cue the death spiral.
Off the gird living just got a little easier thanks to inventor Daniel Connell who has put instructions on how to build a wind turbine for $30 online. It’s not the most efficient and powerful generator out there but anybody with basic knowledge of drills can build it.
Creating something that can deliver a few hundred watts–enough to pump water, say–might not be that difficult. Daniel Connell, who’s drawn up a blueprint to show you how, swears that anyone who “can cut paper and hold a drill” can manage it.
“I’m hoping the animation is such that nothing needs to be left to the imagination of the person following the tutorial,” he says via email.
See Connell’s 52-step tutorial here and his animation below. It basically involves creating a template from paper, cutting aluminum into shapes, then bending and riveting the vanes to a bike wheel. The rest, as they say, is details.
In May, Germany was able to supply 50% of their national energy consumption using renewable power sources. That was remarkable in itself given the size of Germany in both industrial and population size.
Now, it’s been announced that for the first half 2012 Germany produced 67.9 billion kilowatt hours of renewable energy which makes up a quarter of all energy production this far into the year.
Biomass, or material acquired from living organisms, accounted for 5.7 percent and solar technology for 5.3 percent.
Solar energy saw the biggest increase, up 47 percent from the previous year. Germany is the world’s top market for power converted from solar radiation and its installed capacity accounts for more than a third of the global total.
Germany aims to derive 35 percent of its total energy needs from renewable sources by 2035.