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Waste coffee could produce ‘truly sustainable’ biofuel for transport



New research suggests that waste coffee could be used to power vehicles and ease concerns around the sustainability of biofuels, whilst also addressing the issue of climate change.

With carbon dioxide emissions increasing and concerns from the United Nations stating time is running out to avoid the most devastating impacts of climate change, cleaner sources of energy play an important role in the transformation of the transport sector.

The government aims to derive 10% of transport fuel from renewable sources by 2020, with biofuels central to this goal.

First generation biofuels are renewable fuels developed from sources such as starch, sugar and corn, and produce low-carbon emissions. However, there have been criticisms of the production of biofuel as it uses large amounts of land, which takes away from valuable food crops.

Second generation biofuels are a positive alternative that can create a sustainable supply chain, as they use waste products that would otherwise be thrown away.

New research from the University of Bath, published by the ACS Journal Energy and Fuels, found waste coffee grounds have more potential for creating biofuel than first thought.

Using coffee for powering cars is not a new concept, with a car running on coffee grounds breaking the world speed record in 2011, hitting a top speed of 65mph.

However, the research found that due to the standard composition of the popular beverage, all waste coffee from a variety of regions could produce biodiesel. With 8m tonnes of coffee produced around the world each year this creates real potential.

Dr Chris Chuck, from the University’s Centre for Sustainable Chemical Technologies explained, “This oil also has similar properties to current feedstocks used to make biofuels. But, while those are cultivated specifically to produce fuel, spent coffee grounds are waste. Using these, there’s a real potential to produce a truly sustainable second-generation biofuel.

“The uniformity across the board for the coffee biodiesel fuel is good news for biofuel producers and users.”

Although this type of fuel isn’t expected to make a large dent in the huge demand, the research suggests coffee waste could be used to power coffee delivery vans, creating a closed loop.

Bio-bean is a green energy company whose sole purpose is to recycle waste coffee grounds. A spokesperson commented, “It is a hugely efficient process both economically and environmentally.

“The UK produces over 500,000 tonnes of coffee waste every year – this currently ends up in landfill sites, anaerobic digestion plants or is incinerated. It is a big cost to the industry and more importantly to the environment. We could prevent over a million tonnes of CO2 emissions by 2020.”

Bio-bean produces biomass pellets and biodiesel, which are then sold to local companies. They process over 30,000 tonnes of coffee waste every year, which stops the waste going to landfill and prevents harmful emissions. The end result is a 100% renewable fuel, which is an alternative to polluting fossil fuels.

Photo: Aleksandra P. via freeimages

Further reading:

‘Time is running out’ to reduce carbon emissions, warns UN

Biofuels to put ‘unparalleled and unsustainable’ pressure on resources, claims campaign group

Debate over study that says corn biofuels worse than gasoline in the short-term

Biofuels not responsible for global hunger, industry tells G8 members

Biofuels debate rumbles on as EU prepares for landmark vote


7 New Technologies That Could Radically Change Our Energy Consumption



Energy Consumption
Shutterstock Licensed Photo - By Syda Productions |

Most of our focus on technological development to lessen our environmental impact has been focused on cleaner, more efficient methods of generating electricity. The cost of solar energy production, for example, is slated to fall more than 75 percent between 2010 and 2020.

This is a massive step forward, and it’s good that engineers and researchers are working for even more advancements in this area. But what about technologies that reduce the amount of energy we demand in the first place?

Though it doesn’t get as much attention in the press, we’re making tremendous progress in this area, too.

New Technologies to Watch

These are some of the top emerging technologies that have the power to reduce our energy demands:

  1. Self-driving cars. Self-driving cars are still in development, but they’re already being hailed as potential ways to eliminate a number of problems on the road, including the epidemic of distracted driving ironically driven by other new technologies. However, even autonomous vehicle proponents often miss the tremendous energy savings that self-driving cars could have on the world. With a fleet of autonomous vehicles at our beck and call, consumers will spend less time driving themselves and more time carpooling, dramatically reducing overall fuel consumption once it’s fully adopted.
  2. Magnetocaloric tech. The magnetocaloric effect isn’t exactly new—it was actually discovered in 1881—but it’s only recently being studied and applied to commercial appliances. Essentially, this technology relies on changing magnetic fields to produce a cooling effect, which could be used in refrigerators and air conditioners to significantly reduce the amount of electricity required.
  3. New types of insulation. Insulation is the best asset we have to keep our homes thermoregulated; they keep cold or warm air in (depending on the season) and keep warm or cold air out (again, depending on the season). New insulation technology has the power to improve this efficiency many times over, decreasing our need for heating and cooling entirely. For example, some new automated sealing technologies can seal gaps between 0.5 inches wide and the width of a human hair.
  4. Better lights. Fluorescent bulbs were a dramatic improvement over incandescent bulbs, and LEDs were a dramatic improvement over fluorescent bulbs—but the improvements may not end there. Scientists are currently researching even better types of light bulbs, and more efficient applications of LEDs while they’re at it.
  5. Better heat pumps. Heat pumps are built to transfer heat from one location to another, and can be used to efficiently manage temperatures—keeping homes warm while requiring less energy expenditure. For example, some heat pumps are built for residential heating and cooling, while others are being used to make more efficient appliances, like dryers.
  6. The internet of things. The internet of things and “smart” devices is another development that can significantly reduce our energy demands. For example, “smart” windows may be able to respond dynamically to changing light conditions to heat or cool the house more efficiently, and “smart” refrigerators may be able to respond dynamically to new conditions. There are several reasons for this improvement. First, smart devices automate things, so it’s easier to control your energy consumption. Second, they track your consumption patterns, so it’s easier to conceptualize your impact. Third, they’re often designed with efficiency in mind from the beginning, reducing energy demands, even without the high-tech interfaces.
  7. Machine learning. Machine learning and artificial intelligence (AI) technologies have the power to improve almost every other item on this list. By studying consumer patterns and recommending new strategies, or automatically controlling certain features, machine learning algorithms have the power to fundamentally change how we use energy in our homes and businesses.

Making the Investment

All technologies need time, money, and consumer acceptance to be developed. Fortunately, a growing number of consumers are becoming enthusiastic about finding new ways to reduce their energy consumption and overall environmental impact. As long as we keep making the investment, our tools to create cleaner energy and demand less energy in the first place should have a massive positive effect on our environment—and even our daily lives.

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Responsible Energy Investments Could Solve Retirement Funding Crisis




Energy Investments
Shutterstock / By Sergey Nivens |

Retiring baby-boomers are facing a retirement cliff, at the same time as mother nature unleashes her fury with devastating storms tied to the impact of global warming. There could be a unique solution to the challenges associated with climate change – investments in clean energy from retirement funds.

Financial savings play a very important role in everyone’s life and one must start planning for it as soon as possible. It’s shocking how quickly seniors can burn through their nest egg – leaving many wondering, “How long your retirement savings will last?

Let’s take a closer look at how seniors can take baby steps on the path to retiring with dignity, while helping to clean up our environment.

Tip #1: Focus & Determination

Like in other work, it is very important to focus and be determined. If retirement is around the corner, then make sure to start putting some money away for retirement. No one can ever achieve anything without dedication and focus – whether it’s saving the planet, or saving for retirement.

Tip #2: Minimize Spending

One of the most important things that you need to do is to minimize your expenditures. Reducing consumption is good for the planet too!

Tip #3: Visualize Your Goal

You can achieve more if you have a clearly defined goal in life. This about how your money can be used to better the planet – imagine cleaner air, water and a healthier environment to leave to your grandchildren.

Investing in Clean Energy

One of the hottest and most popular industries for investment today is the energy market – the trading of energy commodities. Clean energy commodities are traded alongside dirty energy supplies. You might be surprised to learn that clean energy is becoming much more competitive.

With green biz becoming more popular, it is quickly becoming a powerful tool for diversified retirement investing.

The Future of Green Biz

As far as the future is concerned, energy businesses are going to continue getting bigger and better. There are many leading energy companies in the market that already have very high stock prices, yet people are continuing to investing in them.

Green initiatives are impacting every industry. Go Green campaigns are a PR staple of every modern brand. For the energy-sector in the US, solar energy investments are considered to be the most accessible form of clean energy investment. Though investing in any energy business comes with some risks, the demand for energy isn’t going anywhere.

In conclusion, if you want to start saving for your retirement, then clean energy stocks and commodity trading are some of the best options for wallets and the planet. Investing in clean energy products, like solar power, is a more long-term investment. It’s quite stable and comes with a significant profit margin. And it’s amazing for the planet!

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