Potus ???

[GarethM]

From what I hear they're reopening old nuclear power plants, as they're also realising the time scale for new is daft as you just down rate a power station and won't need to swap out the fuel as much.

 

Personally, all the pwr just makes it far too complicated and electric nation is not practical, say a gas boiler is 25Kw+ for every home is a lot of electricity.

 

Low pressure town based nuclear district heating is the real solution, sealed and safe using the gas pipework infrastructure for central heating.

[Johnsond]

5 hours ago, Steven P said:

Not forgetting that Trump had a cosy behind closed doors one on one chat with Putin, often considered that Putin knows more about Trump than Trump knows about Putin, but also Trump can be read like a book a lot of the time. Says what he is thinking with no filters, priceless if you want to do a deal with him.

 

 

 

 

I know this won't be a mega popular idea, but said it before, the UK needs energy security - green energy is fastest to bring online, nuclear as a base load takes 25+ year (needs starting now), and taking away our reliance of foreign supplied oil and gas - considering that the foreign oil is controlled by the more interesting countries and leaders (Putin and Trump included there), and the known supplies are running down (could be a close thing, oil runs out or a meteor strike in 2032)

 

Pure ideological garbage from start to finish. 

[Big J]

8 hours ago, GarethM said:

From what I hear they're reopening old nuclear power plants, as they're also realising the time scale for new is daft as you just down rate a power station and won't need to swap out the fuel as much.

 

Personally, all the pwr just makes it far too complicated and electric nation is not practical, say a gas boiler is 25Kw+ for every home is a lot of electricity.

 

Low pressure town based nuclear district heating is the real solution, sealed and safe using the gas pipework infrastructure for central heating.

 

No, heatpumps are the future of heating. 25kW is almost never needed and even it it were, the 4:1 efficiency ratio of heat pumps reduces that to just over 6kWh.

 

In the middle of winter, we use about 40kWh a day to fully heat and power our house here in Sweden. It's a big house to heat as well. It's well insulated, but equally, it's nearly 70 years old with it's original double glazed windows.

 

My friend here works as a safety engineer at the local nuclear power plant. He's said that the spikes in energy production are the biggest issue with renewables, as dumping the excess electricity is problematic. So storage has to be the solution for that problem, where it's electrical (battery) or physical (water based - pumping water uphill to a reservoir in times of energy excess to allow it to power turbines on the way back downhill in times of need).

[monkeybusiness]

2 hours ago, Big J said:

 

No, heatpumps are the future of heating. 25kW is almost never needed and even it it were, the 4:1 efficiency ratio of heat pumps reduces that to just over 6kWh.

 

In the middle of winter, we use about 40kWh a day to fully heat and power our house here in Sweden. It's a big house to heat as well. It's well insulated, but equally, it's nearly 70 years old with it's original double glazed windows.

 

My friend here works as a safety engineer at the local nuclear power plant. He's said that the spikes in energy production are the biggest issue with renewables, as dumping the excess electricity is problematic. So storage has to be the solution for that problem, where it's electrical (battery) or physical (water based - pumping water uphill to a reservoir in times of energy excess to allow it to power turbines on the way back downhill in times of need).

How do you create hot water (immersion heaters I guess?), and how many baths/showers a day take place in your household? 
Is your house heating underfloor or conventional radiators?

[Big J]

16 minutes ago, monkeybusiness said:

How do you create hot water (immersion heaters I guess?), and how many baths/showers a day take place in your household? 
Is your house heating underfloor or conventional radiators?

 

Immersion heater within the heat pump boiler. Always loads of hot water (ie, we've never run out and it's always hot - not on a timer). 

 

The heating is all radiators, many of them original. 

We have also got an air source heat pump in the living room (40 square metres) which doubles as AC in summer. I like to keep the house a little on the cooler side on the central heating thermostat (18-19c) but then boost the living areas with the air source pump and also the stove in the kitchen (also around 40 square metres). We use about 6-8 cubic metres a year, max.

[Steven P]

25kW.... That is the power when the boiler is on max, of course there will be discrimination in the system (20 million houses arn't all turning on the bath at the same time). Heat pump heating again lowers the demand from a boiler too - the 25KW copes with heating and hot water. So it isn't quite as bad as that. 10KW is typical for a shower.

 

However there are peak demands on the system, but to make the most and cost effective use of the 'free' energy sources - free wind, free sun (after construction costs) we do need to shift that way. The network controllers can then generate with the cheapest / best fuel source according to the time of day and what is out there. As it stands if we want hot water (as a country) the gas boiler goes on, no choice in the fuel, cannot switch "it is windy, use the electric boiler instead".

 

 

Heat pumps... and hot water... since it is sunny in the day, peak solar production... we can cut back on overnight storage heating a bit and heat on demand... but needs an overhaul of domestic pricing systems to do that. It is no small task the world faces, the populations mindset also needs to think electric.

[GarethM]

What you're all believing to be a panacea solution requires more stable based load ie more nuclear.

 

Wind will never be able to support that as there will never be anywhere to store it, so they'll do what they currently do and pay to keep it off, so don't waste your money and the environment littering it with boondoggle turbines and a bigger grid to cope not with capacity but those times when it does.

 

You're system also requires 3 phase everywhere, as even with inverter drives the spikes will be massive and running mostly 24/7.

 

My domestic load is say below 150-200w would be 4000w for most of the day if you're forcing me off gas.

[Johnsond]

1 hour ago, Steven P said:

to make the most and cost effective use of the 'free' energy sources - free wind, free sun

😂😂Free, you and Milliband on the same medication. 

What happens when it’s dull, overcast and there is no wind, the exact weather conditions we have experienced loads of since Xmas ??

National grids own power generation app showed low single figure power generation for renewables on numerous occasions. 
The only way this will work is if the whole renewable gravy train is a nationalised enterprise, currently it’s a very profitable free for all. I’ve said it numerous times, Energy, Water and numerous other things should never exist to make profits for multinational corporations. 

Edited February 23 by Johnsond

[Big J]

The UK is of course an island, and therefore tidal is a 100% reliable power source.

 

But as I said earlier, storage has to be looked at. Ideally, each house should be equipped with battery storage to allow for charging during periods of high production or low demand. 

 

Most solar installations here now include a battery. 10-15% of the houses in our village have solar, I'd estimate.

[Big J]

10 minutes ago, Johnsond said:

😂😂Free, you and Milliband on the same medication. 

What happens when it’s dull, overcast and there is no wind, the exact weather conditions we have experienced loads of since Xmas ??

National grids own power generation app showed low single figure power generation for renewables on numerous occasions. 
The only way this will work is if the whole renewable gravy train is a nationalised enterprise, currently it’s a very profitable free for all. I’ve said it numerous times, Energy, Water and numerous other things should never exist to make profits for multinational corporations. 

 

This is probably also another case of "Good technology, applied badly by the UK".

 

The National Grid is in chronic need of upgrade. The energy infrastructure as a whole really. It, like so many other things, comes down to planning reform.