clean energy - Tag Archive

The UK is going greener

1 Reply Christopher Roberts

Electricity usage has been falling in the UK since 2002. Meanwhile, the grid has been getting cleaner by the year.

Wind, solar and hydro made up 27.5% of the UKs energy mix in 2020.

Go back 10 years to 2010 and that figure was only 6%.

You can take a deeper dive into the data by exploring the UK Electric Insights – provided by Drax.

The Dumbest Experiment in Human History

We’re using less energy and burning fewer fossil fuels, which is definitely a good thing! Every kilowatt-hour (kWh) of clean, renewable energy generated is a step in the right direction and a step away from what Elon Musk coined “the dumbest experiment in human history“.

Even today, we still burn a lot of fossil fuels and other carbon emitters. Given climate change is now more pressing than ever, the drive for efficiency has never been more important.

So the scene is set: every kWh of consumption we can avoid is positive for the planet.

Energy Labels

From March 2021, you’ll start to see changes to appliance energy efficiency rating labels in the UK – and also across Europe. The old label will be phased out, being replaced with a new simpler one, aiming to promote higher standards of efficiency.

Each appliance type has its own label with additional info. For example, the TV label includes screen size, and the energy consumption of HDR mode. The label for fridges has a decibel rating (so you can compare noise levels) as well as the storage capacity.

The most noticeable difference is in the efficiency ratings. These have been simplified to an A to G scale. Before the range was A+++ to G-, which added complexity – especially as not all the labels were displayed on the chart!

Old UK Energy Label
The old UK energy label
New UK Energy Label
The new UK energy label

The new A to G label also has significantly stricter criteria – as it should if we’re to achieve our climate targets!

With every year, technology develops and efficiency improves – appliances need less power to do the same thing. As such we need to hold appliances to a higher standard. It’s worth remembering, this isn’t only good for the planet, it’s also good for your pocket. Buying a more efficient device which uses less energy will also save you money on energy bills!

If you bought a fridge in 2019 with an A+++ rating, that’d now be rated a B or C in the 2021 label.

If everyone stopped buying G rated products, manufacturers would stop making them. If more people buy A rated product, manufactures will put more research and development into making their products even more efficient – maybe forcing another label change! 😂

Reduce, Reuse, Repair, Repurpose, Recycle, Replace

You can help by knowing and using your “Rs”!

  • Reduce usage where you can – turn off the TV instead of leaving it in standby mode
  • Reuse your existing fridge, TV or washing machine – if you don’t need a new one, don’t buy one!
  • Repair what you’ve got before looking for something new
  • Recycle or Repurpose the appliance you have so it can have a second life – upcycle where you can
  • Replace it with an energy efficient one – and only if you can’t do the other “Rs”

So next time you need a new appliance, check the “Rs” to see if you really do need a new one, and if you do, look out for the new energy efficiency label and use it to help you pick the most efficient one 🙂

Top 10 Emerging Technologies

3 Replies Jonny Hankins

A couple of weeks ago the World Economic Forum published a document on its blog called “The top 10 emerging technologies for 2013”. I thought it might be interesting to have a look at what they say. The article can be read here. The comments are my own interpretation however.

World Economic Forum

1. Online Electric Vehicles.

About 100 years ago a scientist called Tesla demonstrated that electricity could be provided wirelessly. Today there is an idea that electric cars could drive while being recharged from electromagnetic fields created from cables under the road. The cars would need much smaller batteries of course.

The problem with this technology seems to be that it is difficult to measure how much power is taken, so difficult to bill for, nothing more than that. Take a look at this article about other ways of cutting pollution from transport systems.

2. 3D printing and remote manufacturing.

Much has been written and the technology undoubtedly carries advantages, but did you read my post about 3D printers potentially being used to make gun parts?

3. Self Healing Materials.

A great idea but this and other uses of nanotechnology and its production practices need to be regulated, as does the disposal of such materials. We don’t know enough about the effects upon human health as the recent report cited in another post on this blog demonstrates.

4. Energy Efficient Water Purification.

Must be a good thing. Some of Christopher’s thoughts on the issue here.

5. Carbon Dioxide conversion and use.

Geo-engineering offers the possibility of drawing carbon dioxide from the air and storing it underground, but this technology is extremely controversial. This article entitled Engineering a Solution to Global Warming gives an idea of some of the ethical debate surrounding such processes.

6. Enhanced nutrition to drive health.

Genetic modification of plants to make them more nutritional. Much has been written about the GM issue, it is certainly not as simple as it may sound. Great commercial interests are involved, as are problems of cross fertilization and non-reproducibility. See this article on the Bassetti Foundation website about the Vatican and its interests in the problem.

7. Remote sensing.

The buzz-phrase Smart City is all over nowadays. Have a look at this article for some ideas of how using sensors might improve urban life.

8. Precise drug delivery through nanoscale engineering.

Medicine is the area in which nanotechnology research shows its greatest potential. The problems of regulation still exist as brought up in the article above, but the possible advantages for society make this type of research extremely valuable.

9. Organic electronics and photovoltaics.

This article mentions solar panels made using fruit and vegetable juice instead of silicon, and the printing of circuits using organic materials is already a reality. Silicon is more efficient at the moment, but expensive, polluting and will eventually run out, but if scale is not a problem these solutions work well.

10. Fourth generation nuclear reactors and waste recycling.

Making nuclear energy cleaner and better is the goal. The questions of safety and sustainability as well as real cost are not raised however, again not an argument that can be expanded upon too much as it is extremely polarized, but there are cleaner and safer ways to produce electricity as the article about electricity generation cited above shows.

Well it looks like we got most of it covered at Technology Bloggers anyway, cutting edge as we are.