bills by about a third. so quite significant savings by managing his demand. so let's go and have a look at his flat. rob, are you still there? hi, yeah. hi, rob. good to meet you. nice to meet you. liam, the cameraman, come on in. come on in, liam. let's have a look. so we start in the main room here. so, this is rob's kitchen and front room. start in the kitchen — very easy savings you can make. when you're boiling a cup of tea, measure out the water in a cup, only much as much as you need. heat stuff up in a microwave, not in the oven. that will save you loads of energy. boil the water in the kettle when you're making pasta, then put it on the pan. that will save you a bit. i've been looking, it's such an intrusion, i've been going round his house looking at everything! now, i notice you've got a couple of led light bulbs and then you've got one of these halogen light bulbs. yeah. the halogen light bulb, i mean, if you put your hand up to it when it's on, you will feel the heat coming off it. you can save yourself six quid a year by changing that to an led light bulb, and cover the cost of the light bulb. so it's a really easy saving.