Tag Archive | saving energy it starts at home

Nest aims to provide 1 million smart thermostats to low-income families

Smart thermostats like Nest do appear to pay for themselves in energy savings, but the upfront cost of several hundred dollars can be pretty hard to swallow for many households. That got a little easier recently with the launch of Nest Thermostat E …and more » #savingenergy


Highway Lights Save Energy by Dimming When No Cars Are Around

There’s no sense in using energy and creating light pollution to illuminate an empty space. So, when there are no cars around, the lights dim to around 20 percent of their full power. When a car comes driving through, they kick into full blast. Nyland … #savingenergy #lights #citylights

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Researchers pioneer water-based, eco-friendly and energy-saving air-conditioner

A team of researchers from the National University of Singapore (NUS) has pioneered a new water-based air-conditioning system that cools air to as low as 18 degrees Celsius without the use of energy-intensive compressors and environmentally harmful …and more » #savingenergy #eco #energy #green

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Top tips for saving money by using less energy in the kitchen

Saving energy and saving money go hand in hand. By becoming more energy efficient you can not only save money but can also do your bit for the environment by reducing your carbon footprint. These handy tips can help you to cut the energy you use in the kitchen.

· Fridges and freezers as well as other domestic appliances such as washing machines all have an energy efficiency rating. The higher the rating the less energy is used to produce the desired result, for example a load of washing. When choosing a new appliance look for goods that have a rating of A, A+ or A++.

· Make sure your fridge or freezer is set at the right temperature which should be between 0 and 5 degrees for optimum performance and don’t under or over fill them. Making an appliance work harder than it needs to will increase the energy it needs to use.

· By reducing the temperature that you wash your clothes at by just ten degrees you can make substantial savings on your energy usage. If you have a small load to wash consider a half load option when setting off your machine. As the majority of the energy used when running a washing machine comes from heating the water it stands to reason that the less there is to wash then the less energy will be being used.

· If you absolutely must have a tumble drier, bearing in mind that this is an appliance that uses a lot of energy compared to other kitchen equipment, then make sure that you only dry for as long as you need to. Wring clothing out or give it an extra spin before putting it in the tumble drier and set the timer according to need.

· Microwaves and steamers use far less energy than an oven or cooker top and can produce healthier results. Food that is steamed rather than boiled tends to retain more of their nutrients. Using a microwave is also a lot faster, more convenient and is easier to clean. It could be time to rethink how you use the appliances in your kitchen.

· The kitchen is usually a place that gets a lot of traffic through it. This is no excuse for not turning off lights when you leave, closing doors to keep heat inArticle Search, switching off the radio and unplugging any appliances that are sitting ready to be used. The coffee machine is a great example of an appliance that is often plugged in and left on standby.

· A simple but effective way to save money in the kitchen is to only fill the kettle with as much water as you need to make your hot drink. There is no need to boil a kettle-full when most of it will go unused.

A few simple changes around your kitchen alone will cut the energy you use and in the long term this will result in lower energy bills.

Energy-saving technologies cutting firms’ fuel bills

Electricity costs have doubled for businesses over the last decade, says energy saving body the Carbon Trust, pushing sustainability issues to the top of the agenda.

But these days “going green” is as much about business survival as reducing impact on the environment.

Yet surveys show many businesses still struggle to understand the technologies available and are wary about the upfront costs involved.

Technology of Business offers a guide to the most effective ways businesses can cut their energy bills and begin operating more sustainably.

LED lighting

Switching to LED – Light Emitting Diode – lighting is the quickest and simplest action any business can take to reduce energy usage, argues Myles McCarthy, director of implementation at the Carbon Trust.

A traditional 60 watt incandescent bulb would produce about 750 to 1,000 lumens – a measure of lighting power – but 95% of the energy used to create that light would typically be wasted in heat.

Modern LED lights are much more thermally efficient and can now produce between 50 and 100 lumens per watt (lm/W) in normal working conditions.

LED stripImage copyrightTHINKSTOCK
Image captionSwitching to LED lighting is the simplest way for businesses to cut their energy bills

One US manufacturer, Cree, reckons it has produced a white light LED bulb that can produce 300 lm/W.

Mr McCarthy says payback on investment in LED is typically between one and three years. For example, one retail outlet client invested £74,000 in new lighting, resulting in a 74% lighting energy reduction and savings of around £33,000 per year, he says.

“This is why we’ve seen considerable investment in LED in recent years.”

Smart monitoring

Smart meters, thermostats, and sensors – part of what’s being called “the internet of things” – are giving us data about our energy consumption patterns that we never had before.

“It’s the ability of these meters to communicate that’s smart, not their ability to record energy usage,” argues Joel Hagan, chief executive of smart metering company, Onzo.

“They give us far more visibility than we ever had before, down to the energy usage of individual appliances.”

Microsoft Redmond campus aerial viewImage copyrightMICROSOFT
Image captionApplying “internet of things” data analytics to Microsoft’s campus in Redmond, Washington could reduce energy usage by 10% a year, the company says, saving it “millions of dollars”

This increased visibility is helping businesses identify energy wastage more easily and make potentially huge savings.

Quentin Clark, head of Microsoft’s data platform group, told the BBC: “By implementing internet of things control systems and big data analytics at our headquarters campus [in Redmond, Washington] we were able to spot aberrations in our energy usage, such as a garage that had air conditioning.”

Microsoft says its 88 Acres project, involving 125 buildings, 30,000 pieces of equipment generating 500 million data transactions every day, could produce energy savings of up to 10% a year for the company, saving it “millions of dollars”.

Walgreens storeImage copyrightWALGREENS
Image captionWalgreens’ first “net zero energy” store just outside Chicago
LED lighting inside Walgreens storeImage copyrightWALGREENS
Image captionThe store uses low-energy LED lighting controlled by an energy management system

In another example, Mike Franco, chief executive of California-based smart building systems firm, RiptideIO, says his company implemented a $20m [£12m; 14m euros] energy management system for US drugstore chain, Walgreens.

The project, which involved thousands of stores, saved the retailer $14m last year alone, he says.

Walgreens completed its first “net zero energy” store just outside Chicago late last year, incorporating solar photovoltaic (PV), LED lighting and wind turbines to produce more energy than it takes from the grid.

Up the junction

Any conglomeration of buildings can benefit from lighting and energy control systems, says Chris Bedford, managing director of intelligent lighting controls company, Open Technology.

A recent project at Clapham Junction railway station in London reduced lighting energy usage by 40%, he says.

Train at Clapham JunctionImage copyrightNETWORK RAIL
Image captionControl systems have cut lighting energy usage by 40% at London’s Clapham Junction railway station

The initial investment of about £30,000 formed part of a wider energy reduction strategy to achieve total annual savings of over £7m for Network Rail and South West Trains.

Smaller energy control system projects can cost about £6,000 and above, depending on the size of the business, he added.

With savings like these on offer, it’s no wonder Martin Chilcott, founder of sustainable business community 2degrees, says: “Our Trends Tracker survey shows that businesses consider smart metering and energy management software to be second only to LED lighting in importance.”

Solar gain

Once a business has made efficiencies to its current equipment and energy usage patterns, generating its own electricity through renewable technology could be a sensible next step, experts advise.

The Energy Saving Trust’s Greg Shreeve describes solar PV as a “sure-fire” investment for businesses with the necessary capital.

Giant solar panel wallImage copyrightTHINKSTOCK
Image captionThe National Museum of Taiwan History in Tainan features a giant wall of solar panels

The cost of installing PV panels has fallen dramatically over the last 10 years while their efficiency has improved, making them an obvious useful addition to business buildings big or small.

Not only can they help reduce your electricity bills but you’ll get paid for the electricity you generate and export to the grid thanks to the UK’s Feed-In Tariffs(FITs) scheme.

Introduced in April 2010, the scheme pays businesses for the electricity they generate through solar, wind turbines, hydro, anaerobic digesters or combined heat-and-power systems. The rate of generation subsidy – currently more than 14p per kilowatt hour for small schemes – is under review and could be reduced.

And how much support you receive also depends on your property’s Energy Performance Certificate rating, so it makes sense to have improved your firm’s energy efficiency before applying.

But with small-scale solar PV systems currently costing between £5,000 and £10,000, you could still see a return on investment within six to 10 years, installers say.

Electric fruit

Local delivery companies should consider switching their fleets to electric vehicles, advises Tim Anderson, senior transport manager at the Energy Saving Trust.

When Fruit4London, a small company delivering fresh fruit to city workers, invested in a fleet of four electric vans, “It was one of the best decisions we ever made,” says co-founder Laszlo Mulato.

Fruit 4 London electric vansImage copyrightSPANYOL
Image captionFruit4London says switching to electric vans was “one of the best decisions we ever made”.

A £5,000 government subsidy for electric vehicles reduced the cost of each Renault van to about £13,000 (plus VAT), says Mr Mulato. And each van saves the business £9,000 a year in congestion charge fees, maintenance and fuel costs, he adds.

“We haven’t been able to increase our prices for five years, so savings like these help keep us competitive.”

The company leases the vehicle battery from Renault for about £70 a month and it costs less than £1 a day to charge. With each van doing up to 60 miles a day, range is not an issue, he adds.

The switch to electric vehicles has had the added advantage of pleasing big clients who want their suppliers to be green as well, says Mr Mulato.