grey box
Measures to reduce fuel bills ROI*
water tank insulation energy saving Lagging 1
loft insulation energy saving Loft Insulation 2
cavity wall insulation energy saving Cavity Wall Insulation 2.3
underfloor insulation energy saving Underfloor Insulation 4.4
solid wall insulation energy saving Solid Wall Insulation 15.8
solar energy energy saving Solar Hot Water 35
double glazing energy saving Double Glazing 58.1

*ROI is the time it takes in years to return the investment in fuel savings for an average gas heated 3 bed semi-detached house. The table assumes no government incentive schemes are used.

Renewable Energy Measures ROI**
ground source heat pump Heat Pumps
- Replacing Electric
4 to 8
ground source heat pump Heat Pumps
- Replacing LPG
120 to 239
wind power Wind Power 13 to 52
solar PV Solar Photovoltaics 23 to 60

**ROI is the time it takes in years to return the investment in electricity savings. The table assumes no government incentive schemes are used.

Money
Saving
Tips
 Energy 
Savings 
Each Year
 Money
Savings
Each Year
 CO2
Savings
Each Year
 Comments
dishwasher energy saving tips Dishwashers
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30kWh -
90kWh
£4.62 -
£13.86

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11.01kg -
33.03kg
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Run the machine full and less often

boil less water in kettle energy saving tips Boiling Water
Read More
82kWh -
164kWh
£12.628 -
£25.256

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30.09kg -
60.19kg
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Boil only what you need. Savings depend on how much tea you drink!

fridge freezer energy saving tips Fridge Freezers
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50kWh -
400kWh
£7.7 -
£61.6

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18.35kg -
146.8kg
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Fridge maintenance. Savings depend on size, age and rating

dmoney saving tips tumble drying Tumble Dryers
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90kWh -
350kWh
£13.86 -
£53.9

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33.03kg -
128.45kg
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Operate Less often, clean filters, part dry clothes?

differnce in cost of shallow or deep bath Baths
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700kWh -
1400kWh
£30.1 -
£215.6

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147kg -
513.8kg
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Have shallower baths and consider how you heat water

change energy supplier to save money Change Supplier
Read More
0kWh -
0kWh
£0 -
£500

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0 -
0
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save money and have a beerSwitch! This is the single simplest way of saving money. This is equivalent to 100 pints of beer!

shower or power shower which is cheaper Shower of Power Shower
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120kWh -
1100kWh
£18.48 -
£242

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25.2kg -
403.7kg
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Aviod immersion heated power showers

save money and energy with good loft insulation Install Loft Insulation
Read More
3000kWh -
3750kWh
£129 -
£161.25

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630kg -
787.5kg
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Modern loft insulation in a 3 bed semi - these numbers are for Gas, savings are greater for other fuels

save money and energy with good loft insulation Improve Loft Insulation
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1000kWh -
1500kWh
£43 -
£64.5

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210kg -
315kg
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Modern loft insulation in a 3 bed semi - these numbers are for Gas, savings are greater for other fuels

This table is under construction there are more tips here.

Funny Stories

Energy to Make a Cup of Tea

Not sure if this is funny or not but it is daft. I noticed one of my wife’s young employees (in her shop) refills the kettle completely to the top once he had taken enough from the kettle for a coffee. Why are you doing that I asked. “So that it is full for the next person”. But why if they are only making 1 cup tea, why boil 2 litres of water? I asked, it is a waste of money and energy .....

 

Car Windmill

car windmill

This is one of our favourites.  It was seriously suggested that if you put a windmill on the top of a car, and then drive the car, the turbine will rotate, generate electricity, which would then drive the car.


We would welcome contributions to the site explaining what is wrong with this as a concept.

Contact Us...
 

Freeze the North Pole

The theory behind this idea is that by proactively sending special ships up to the North Pole that they refrigerate the ocean and replenish the ice cap. The logic of the idea is that the newly formed ice will reflect more of the sun’s rays back into space and hence reduce global warming. There are so many problems with this idea, where do you begin!

Again we invite contribution to consider the merits of this notion and we will post the answers.

Contact Us...
 


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