Tag Archives: biomass

Thoughts about renewable energy

I watched The Apprentice last night.

At one time I used to watch in the hope that I might learn something about business. I’ve not learned anything I can use, though I do now know that every year proves there is a seemingly endless supply of idiots.

If I can find a way of converting idiots into electricity I may have found the next big thing in renewable energy.

Talking of which, we drove past another solar farm today.  It seems like every time we drive north from Nottingham we find another new field of black panels. Land use has changed considerably over the last ten years in North Nottinghamshire – first we had willow, then we had miscanthus. Currently we seem to have a small forest of wind turbines springing up and the latest fashion seems to be to cover acres in photovoltaic cells.

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Solar farm in north Nottinghamshire

When I see that I feel more comfortable about using electricity, but then start to worry that we won’t need it, because if we cover the land to generate electricity there will be no food to cook.

I’m a bit worried about food, after listening to a radio programme tonight. In order to halt global warming we need to scale back on meat production (mainly on account of the methane produced by cows) and would, they calculate, only have 19 grams of meat a day. That’s 133g a week, about the weight of two moderate burgers.

In the Second World War the bacon and ham ration ranged between 113 and 227 grams. However, there was also a meat ration, controlled by price – between 1 shilling and 1 shilling and two pence (5 – 6 pence in modern terms). I’m struggling to find a comparison of prices – one I found suggests that could be about £1.50. It’s not a lot, but compared to 19 grams a day it’s a positive feast.

To add to the complexity of looking into the future it also seems that grass fed beef (as generally reared in the UK) is worse for the environment than intensively raised beef fed on maize and soya (as raised in USA). It’s not about the method or the food, it’s about the fact that grass fed beef takes longer to grow to full weight, and thus spends more time emitting methane.

Now, methane is the main component of natural gas, so is it just me, or are other people thinking that some sort of gas-collecting nappy on a cow might be an alternative to fracking? Ah, just me…

That’s not the end to it of course, there’s also milk to consider. If they were telling the truth (and I fear they are) we will only have enough milk for four cups of tea a day.

Four cups of tea a day?

I could see myself as a vegetarian, but I don’t see myself cutting down to four cups a day.

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Under threat – my cup of tea

 

 

 

 

 

 

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Wood chip woes

Three degrees centigrade when we arrived this morning. It’s now past 11 am as I write this and it’s still only four degrees so it looks like winter might have started. Despite all the newspaper reports this shouldn’t be a surprise, as we often have our worst weather in February or March.

The heat exchangers on the front of the building have been working hard and are covered in ice.

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Meanwhile it’s 20 degrees inside, as long as people keep the door closed. Unfortunately, shutting doors seems to be a bit of a lost art.

Meanwhile the biomass boiler has been giving problems because we have used a new source of wood. First of all it needed recalibrating to deal with willow, and now the ash removal mechanism keeps clogging. When you have four homes relying on the system this isn’t good. Though we all know biomass is one of the ways forward, it’s easy to see why people stick to the more traditional methods of heating.

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