Connect with us


Mastering the tides for clean energy



A tidal lagoon project at Swansea Bay, set for consultation in the next few weeks, could provide over 100,000 homes in the area with clean, renewable and locally-sourced energy.

Eight out of 10 people in the UK support renewables, according to a recent Department of Energy and Climate Change (DECC) poll. But the government seemingly remains fixed on a ‘dash for gas’ strategy – as laid out in the energy bill last year – prompting calls from organisations for a decarbonisation target to be included in the legislation.

Blue & Green Tomorrow caught up with the tidal lagoon project’s chief executive Mark Shorrock, who explained a bit more about the development could well play a vital part in a sustainable energy transformation.

What is the problem, and why does the tidal lagoon at Swansea Bay solve it?

There are so many problems. We have too much gas, coal and nuclear and not enough renewables. We have so many NIMBYs who object to onshore wind and cow the silent majority who do like wind. A tidal lagoon, touch wood, will not get objected to by NIMBYS because we create a water sports venue, long-term local jobs, a long-term amenity and we are simply a new breakwater harbour in the sea.

Our vision is to create a programme of tidal lagoons, each one bigger than the last, such that 5,000 megawatt (MW) of tidal lagoon power comes on stream in the UK in the next 12 years. The tides rise and fall every day, twice a day and we simply capture that head difference and generate electricity. For 120 years.

How is the project unique?

I hope it isn’t unique in time. For now it will be the only large-scale bidirectional tidal lagoon in Europe, in effect a low head hydroelectric dam that works in both directions with bespoke turbines created by Alstom and Voith.

It may also be unique in that it is looking to source as much inputs locally as possible and create a bona fide tidal lagoon industry in Wales.

We are under the radar as of now, yet have a consortium of Atkins, Voith, Alstom, Van Oord and Costain.

How was the local community reacted to the project?

Really positively. We have concluded over 160 stakeholder meetings with residents groups, sports groups, councillors, business groups, rotary clubs and so on.

The elements that appeal are: it’s first for Swansea; it will be a local amenity where triathlon, swimming and sailing events can be held; jobs in South Wales will be created from assembling turbines, geo textiles, manufacturing, construction jobs, tourism, operations and maintenance once built; and there is no noise, no smells and no visual impact.

Have you received much opposition from locals?

No. One group of anglers.

What are the ingredients for a successful renewable energy development?

Long-term predictable power which is what we get from the rise and fall of the tides and the knowhow of what tide there will be every day of every year.

Local support, ownership and electricity tariffs tied to the development that you wake up and see in the morning are also important.

Some politicians and media commentators describe renewable energy as an inefficient subsidy junky. How do you respond to that?

€21bn of subsidy for nuclear and coal v €5bn for renewables across Europe are the last figures I have seen. Renewables don’t get anything like the support they deserve.

It is recognised that diverse sources of supply equal cheaper long-term electricity for all.

On windy days, wholesale electricity prices now drop, hence all the opposition to wind from the vested interests. On sunny days, summer peak electricity prices will now drop this summer. Renewables are starting to make electricity cheaper.

Why did you become involved in the renewable energy industry?

Because I want a planet that is still habitable for my children

Do you think the government is doing enough to promote renewable energy?

No. But those that work in our area don’t do a bad job.

Simply we don’t have an energy ministry, we have a nuclear ministry. Did you know that wave, tidal stream and tidal range only have two permanent civil servants and that three quarters of the Department of Energy and Climate Change’s budget goes on nuclear?

What are your projections for the future of renewable energy in the UK?

We will build between three and five lagoons delivering 5,000-10,000MW of power. Offshore wind will get built because government is insistent on it, and we will see dribs and drabs of new onshore wind. At some stage energy efficiency subsidies will be made high enough so that people can decide to invest into energy efficiency.

So lagoons plus energy efficiency is the holy grail, supported by a mix of wind, solar, hydro and nascent tidal stream devices.

Tidal Lagoon Swansea Bay Ltd has issued £10m in shares for investors wishing to profit from the project, which will go towards designing and constructing the tidal lagoon, as well as helping to fund preparation of an environmental impact assessment. To request an investment brochure, email

Further reading:

Innovative tidal lagoon could power 100,000 homes

Investors given partial certainty as government publishes energy bill

Organisations add strong backing to decarbonisation target calls

Report highlights clean energy as better alternative to Severn barrage

The Guide to Limitless Clean Energy


How Going Green Can Save A Company Money



going green can save company money
Shutterstock Licensed Photot - By GOLFX

What is going green?

Going green means to live life in a way that is environmentally friendly for an entire population. It is the conservation of energy, water, and air. Going green means using products and resources that will not contaminate or pollute the air. It means being educated and well informed about the surroundings, and how to best protect them. It means recycling products that may not be biodegradable. Companies, as well as people, that adhere to going green can help to ensure a safer life for humanity.

The first step in going green

There are actually no step by step instructions for going green. The only requirement needed is making the decision to become environmentally conscious. It takes a caring attitude, and a willingness to make the change. It has been found that companies have improved their profit margins by going green. They have saved money on many of the frivolous things they they thought were a necessity. Besides saving money, companies are operating more efficiently than before going green. Companies have become aware of their ecological responsibility by pursuing the knowledge needed to make decisions that would change lifestyles and help sustain the earth’s natural resources for present and future generations.

Making needed changes within the company

After making the decision to go green, there are several things that can be changed in the workplace. A good place to start would be conserving energy used by electrical appliances. First, turning off the computer will save over the long run. Just letting it sleep still uses energy overnight. Turn off all other appliances like coffee maker, or anything that plugs in. Pull the socket from the outlet to stop unnecessary energy loss. Appliances continue to use electricity although they are switched off, and not unplugged. Get in the habit of turning off the lights whenever you leave a room. Change to fluorescent light bulbs, and lighting throughout the building. Have any leaks sealed on the premises to avoid the escape of heat or air.

Reducing the common paper waste

paper waste

Shutterstock Licensed Photo – By Yury Zap

Modern technologies and state of the art equipment, and tools have almost eliminated the use of paper in the office. Instead of sending out newsletters, brochures, written memos and reminders, you can now do all of these and more by technology while saving on the use of paper. Send out digital documents and emails to communicate with staff and other employees. By using this virtual bookkeeping technique, you will save a bundle on paper. When it is necessary to use paper for printing purposes or other services, choose the already recycled paper. It is smartly labeled and easy to find in any office supply store. It is called the Post Consumer Waste paper, or PCW paper. This will show that your company is dedicated to the preservation of natural resources. By using PCW paper, everyone helps to save the trees which provides and emits many important nutrients into the atmosphere.

Make money by spreading the word

Companies realize that consumers like to buy, or invest in whatever the latest trend may be. They also cater to companies that are doing great things for the quality of life of all people. People want to know that the companies that they cater to are doing their part for the environment and ecology. By going green, you can tell consumers of your experiences with helping them and communities be eco-friendly. This is a sound public relations technique to bring revenue to your brand. Boost the impact that your company makes on the environment. Go green, save and make money while essentially preserving what is normally taken for granted. The benefits of having a green company are enormous for consumers as well as the companies that engage in the process.

Continue Reading


5 Easy Things You Can Do to Make Your Home More Sustainable




sustainable homes
Shutterstock Licensed Photot - By Diyana Dimitrova

Increasing your home’s energy efficiency is one of the smartest moves you can make as a homeowner. It will lower your bills, increase the resale value of your property, and help minimize our planet’s fast-approaching climate crisis. While major home retrofits can seem daunting, there are plenty of quick and cost-effective ways to start reducing your carbon footprint today. Here are five easy projects to make your home more sustainable.

1. Weather stripping

If you’re looking to make your home more energy efficient, an energy audit is a highly recommended first step. This will reveal where your home is lacking in regards to sustainability suggests the best plan of attack.

Some form of weather stripping is nearly always advised because it is so easy and inexpensive yet can yield such transformative results. The audit will provide information about air leaks which you can couple with your own knowledge of your home’s ventilation needs to develop a strategic plan.

Make sure you choose the appropriate type of weather stripping for each location in your home. Areas that receive a lot of wear and tear, like popular doorways, are best served by slightly more expensive vinyl or metal options. Immobile cracks or infrequently opened windows can be treated with inexpensive foams or caulking. Depending on the age and quality of your home, the resulting energy savings can be as much as 20 percent.

2. Programmable thermostats

Programmable thermostats

Shutterstock Licensed Photo – By Olivier Le Moal

Programmable thermostats have tremendous potential to save money and minimize unnecessary energy usage. About 45 percent of a home’s energy is earmarked for heating and cooling needs with a large fraction of that wasted on unoccupied spaces. Programmable thermostats can automatically lower the heat overnight or shut off the air conditioning when you go to work.

Every degree Fahrenheit you lower the thermostat equates to 1 percent less energy use, which amounts to considerable savings over the course of a year. When used correctly, programmable thermostats reduce heating and cooling bills by 10 to 30 percent. Of course, the same result can be achieved by manually adjusting your thermostats to coincide with your activities, just make sure you remember to do it!

3. Low-flow water hardware

With the current focus on carbon emissions and climate change, we typically equate environmental stability to lower energy use, but fresh water shortage is an equal threat. Installing low-flow hardware for toilets and showers, particularly in drought prone areas, is an inexpensive and easy way to cut water consumption by 50 percent and save as much as $145 per year.

Older toilets use up to 6 gallons of water per flush, the equivalent of an astounding 20.1 gallons per person each day. This makes them the biggest consumer of indoor water. New low-flow toilets are standardized at 1.6 gallons per flush and can save more than 20,000 gallons a year in a 4-member household.

Similarly, low-flow shower heads can decrease water consumption by 40 percent or more while also lowering water heating bills and reducing CO2 emissions. Unlike early versions, new low-flow models are equipped with excellent pressure technology so your shower will be no less satisfying.

4. Energy efficient light bulbs

An average household dedicates about 5 percent of its energy use to lighting, but this value is dropping thanks to new lighting technology. Incandescent bulbs are quickly becoming a thing of the past. These inefficient light sources give off 90 percent of their energy as heat which is not only impractical from a lighting standpoint, but also raises energy bills even further during hot weather.

New LED and compact fluorescent options are far more efficient and longer lasting. Though the upfront costs are higher, the long term environmental and financial benefits are well worth it. Energy efficient light bulbs use as much as 80 percent less energy than traditional incandescent and last 3 to 25 times longer producing savings of about $6 per year per bulb.

5. Installing solar panels

Adding solar panels may not be the easiest, or least expensive, sustainability upgrade for your home, but it will certainly have the greatest impact on both your energy bills and your environmental footprint. Installing solar panels can run about $15,000 – $20,000 upfront, though a number of government incentives are bringing these numbers down. Alternatively, panels can also be leased for a much lower initial investment.

Once operational, a solar system saves about $600 per year over the course of its 25 to 30-year lifespan, and this figure will grow as energy prices rise. Solar installations require little to no maintenance and increase the value of your home.

From an environmental standpoint, the average five-kilowatt residential system can reduce household CO2 emissions by 15,000 pounds every year. Using your solar system to power an electric vehicle is the ultimate sustainable solution serving to reduce total CO2 emissions by as much as 70%!

These days, being environmentally responsible is the hallmark of a good global citizen and it need not require major sacrifices in regards to your lifestyle or your wallet. In fact, increasing your home’s sustainability is apt to make your residence more livable and save you money in the long run. The five projects listed here are just a few of the easy ways to reduce both your environmental footprint and your energy bills. So, give one or more of them a try; with a small budget and a little know-how, there is no reason you can’t start today.

Continue Reading