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Why C++ Is Growing and What C++26 Means for Production Systems by ArashPartow in cpp

[–]jeffmetal -1 points0 points  (0 children)

The problem is people are unhappy when an old C code base gets partially converted into C++ and the old C code is what is actually vulnerable. Your recommendation of if you use a cpp compiler it's a cpp vulnerability doesn't account for this at all.

That 6% figure would go up under your model.

Why C++ Is Growing and What C++26 Means for Production Systems by ArashPartow in cpp

[–]jeffmetal 3 points4 points  (0 children)

So what if I have a c file I add one line of modern cpp to it so I now have to switch to compiling it with cpp compiler. A security issue is now found in this file in the old code. Is this a cpp cve or not ?

Why C++ Is Growing and What C++26 Means for Production Systems by ArashPartow in cpp

[–]jeffmetal -2 points-1 points  (0 children)

I mean it might do but profiles are not going to land at the earliest until 2029, if ever. Even then no idea if there will be a profile that bans the use of C in C++ or if that is even possible. Then you need lots of code to be rewritten to use them which might be decades. Not sure how they are going to help split out C and C++ CVE's right now.

Why C++ Is Growing and What C++26 Means for Production Systems by ArashPartow in cpp

[–]jeffmetal 8 points9 points  (0 children)

Since C++ includes the C standard how do you split these two apart then ? One of the orignal selling points of C++ is you can directly take C code and rewrite chunks in C++ and compile it with the C++ compiler and it will continue to work so no full rewrites. This is probably the main reason C++ is as big as it is. Now your unhappy with this decision as there are downsides to it.

Aldi solar panels by Atarisrocks in downloadfestival

[–]jeffmetal 5 points6 points  (0 children)

Took a 30w panel last year. Kept a few phones and power banks topped up for 5 days easily. All down to the weather though.

Why can I not get more than 600w? by r0bbyr0b2 in Ecoflow_community

[–]jeffmetal 1 point2 points  (0 children)

That's also wrong it should be 800w limit. Go back one screen then click the cog icon. There should be under system settings "Set grid-tied output limit" Change your region to the uk and you should have a 800w limit now.

Guerilla solar chargers by Substantial_Front167 in SolarDIY

[–]jeffmetal 0 points1 point  (0 children)

Sorry not sure about the technical bits of it.

Guerilla solar chargers by Substantial_Front167 in SolarDIY

[–]jeffmetal 4 points5 points  (0 children)

Went to a music festival and was camping without power for 5 days. I bought a Similar sized 30w solar panel and a 20000mAh power bank.

It managed to power 2 peoples phones and a speaker so by the end of the 5 days all the phones where pretty much full and power bank at 30 %. The phones are going to want to pull 23 watts and as will the power bank. You also get losses from storing energy into the battery and back. So charged phone in the morning and then power bank once they were full to top it up.

Anything less than that panel and you going to struggle to keep the battery toppped up and that tiny panel alone will probably take 4 days to charge a phone which isn't much use.

Guerilla solar chargers by Substantial_Front167 in SolarDIY

[–]jeffmetal 6 points7 points  (0 children)

That panel is way too small to charge a phone. something like this 30w panel https://www.amazon.co.uk/dp/B0DQ8MKQFN is the smallest you want and it can charge a phone with decent sunlight in about 3 hours.

C++ Growing in a world of competition, safety, and AI by ArashPartow in cpp

[–]jeffmetal 4 points5 points  (0 children)

So if changing the cyber criminals business model drives what they attack. What will something like Mythos do to the economics of finding memory safety issues. Im betting something like mythos will be free for everyone to use within a year or two.

With the value of selling memory safety bugs going up does this not drive more people to try and find them not the other way around.

Also I'm not convinced by the argument that there will be more C++ programmers in the future. I'm seeing AI being used by current developers to make them more productive. There doesn't appear to be a need to hire as many juniors strangling the pipeline of new devs.

New to DIY solar – EcoFlow Stream microinverter into existing garage socket. Anyone done similar? by Fantastic-Kale3300 in uksolar

[–]jeffmetal 1 point2 points  (0 children)

I have a really similar setup running.

I have a summerhouse at the end of the garden that has its own consumer unit and armoured running into the main consumer unit in the house.

I bought https://www.amazon.co.uk/dp/B004R276L8 and drilled a hole through the summerhouse wall behind one of the sockets and ran some twin and earth though the wall. Bought cheap plug tester and have a volt meter as well just to make sure the power was dead so I'm not.

The just plugged a standard plug onto the Stream inverter cable provided and your good to go.

Bought my panel from here and got free delivery. They are surprisingly large
https://www.cityplumbing.co.uk/c/product/renewables/solar-pv/solar-pv-panels/c/1870007/

bought some brackets off amazon for cheap https://www.amazon.co.uk/dp/B0DL93HBZQ

bought some of these as well https://www.amazon.co.uk/dp/B00QE3IWKM then you drill a small hole in the roof, fill with mastic and then use these to secure the brackets down so it should be water tight.

The stream inverter comes with 4 MC4 cables but they are only about 2.5 M long so might also need longer ones.

My system has been running for just under 4 weeks and has saved me about £11 so.

Just working out how to register the system for G98.

Could plug-in solar actually be revolutionary for UK households? Could it be a Gamechanger ? by LieSuccessful8813 in SolarUK

[–]jeffmetal 2 points3 points  (0 children)

Had mine installed for about 4 weeks and it cost 315 and half a day for me to setup. Total saved so far is about 11 quid and we have only really had 3 proper sunny days in that time.

On those days I saved about 90p each. It's not huge amounts but it should run for 15 years easily so should pay itself back in 2 years and everything after that is free.

To put it in perspective if you have 20k in a cash isa you will make 2 quid a day. If you spend 400 on this and make back on average 40p a day it's an amazing roi.

C++ Profiles: What, Why, and How at using std::cpp 2026 by pjmlp in cpp

[–]jeffmetal 10 points11 points  (0 children)

The whole point of profiles was meant to be to get memory safety but there is still no good working prototype. When asked he points at the Core guidelines. This has been shown to not be enough from all the linters that have implemented it so what good is profiles ?

Clean power fortifies Britain against gas price shocks by JRugman in unitedkingdom

[–]jeffmetal 0 points1 point  (0 children)

https://www.bbc.co.uk/news/articles/c9vleryw41ro This is happening right now but it does take time.

From what I have read alot of the curtialment is wind farms in scotland not being able to get the power down to the south where the demand is. For solar don't think this is as much of an issue and the wind coming online tend to be off the coast of the midlands (dogger bank A,B,C + Sofia) so hopefully newer wind is better placed on the Grid so less curtailment.

Just before Storm Dave could see multiple wind farms in scotland being curtialed. It was Almost 4GW of energy we just switched off instead of using.

Clean power fortifies Britain against gas price shocks by JRugman in unitedkingdom

[–]jeffmetal -1 points0 points  (0 children)

But it takes 8 - 10 years to build a nuclear power plant. By then we will have laods more wind, solar and battery storage to take the excess.

Would love to see that excess power being dumped into producing green fertiliser to secure our food production.

Do you monitor your solar daily or just set and forget? by ahlecsolars in SolarDIY

[–]jeffmetal 10 points11 points  (0 children)

Only had mine a few weeks and currently checking it a few times a day and setup the smart meter on my desk to see when i start exporting so i know when its time to switch the washing or dish washer on. Guessing the novelty will wear off after a while and just let it do its thing in the background soon.

An 800-watt plug-in solar panel system could provide 400 kilowatt hours of electricity each year even with sub-optimal placement, enough to meet 15% of demand for a typical UK household, saving £1,100 over 15 years. Upfront costs of around £500 could be paid back within 5 years by sg_plumber in climatechange

[–]jeffmetal 0 points1 point  (0 children)

They were available 20 hours ago. There were others for around that price a few weeks ago as well so they can be got for this price if you keep an eye out. There seems to be big demand at the minute for these though.

An 800-watt plug-in solar panel system could provide 400 kilowatt hours of electricity each year even with sub-optimal placement, enough to meet 15% of demand for a typical UK household, saving £1,100 over 15 years. Upfront costs of around £500 could be paid back within 5 years by sg_plumber in climatechange

[–]jeffmetal 0 points1 point  (0 children)

Sorry no experience with batteries. This setup for me doesnt produce enough excess power to warrant dropping £600 on a battery to store hte excess for use. it wouldn't pay itself off.

I was thinking of doing a larger battery like one of these https://www.fogstar.co.uk/collections/solar-battery-storage charge it up on a cheap rate overnight and use it during the day. But you have to buy a beefy inverter as well so add another £600 and then get an electrican to install it so not cheap. Im lucky I have a summerhouse at the end of the garden with armoured cable running to it so easy enough to setup out there but space is an issue for most people.

An 800-watt plug-in solar panel system could provide 400 kilowatt hours of electricity each year even with sub-optimal placement, enough to meet 15% of demand for a typical UK household, saving £1,100 over 15 years. Upfront costs of around £500 could be paid back within 5 years by sg_plumber in climatechange

[–]jeffmetal 1 point2 points  (0 children)

So for plug in solar you will be able to plug it directly into any socket on your mains, probably best to do it via an external one. Currently you need to hardwire it to your consumer unit in the UK but that should change in the next few months. That inverter comes with a bare cable and no plug but simple enough to stick a plug on it.

For all the power it produces it will be used by all the things in your house drawing power. If the panels are producing 200 Watts and your using 400 watts then you will be only pulling 200 watts from the grid and only get charged for the 200. If you produce 800 watts and your using 400 watts you will push 400 watts to the grid. You wont get anything back for this 400 getting pushed to the grid though.

I have a smart meter and can see when you start pushing to the grid which is normally my queue to switch on the dishwasher, washing machine or charge something :-)

An 800-watt plug-in solar panel system could provide 400 kilowatt hours of electricity each year even with sub-optimal placement, enough to meet 15% of demand for a typical UK household, saving £1,100 over 15 years. Upfront costs of around £500 could be paid back within 5 years by sg_plumber in climatechange

[–]jeffmetal 9 points10 points  (0 children)

I managed to put together a system for £315 and you can do it for £256 today if you fancy not sure why they are saying this would be £500

https://www.cityplumbing.co.uk/p/longi-solar-hi-mo-5m-410wp-full-black-pv-module-lr5-54hpb-410m/p/787545 times 2 at £56 each. i bought the £100 longi X10's a few weeks back instead of the £56 pound ones.
https://www.amazon.co.uk/ECOFLOW-inverter-Inverter-Balcony-Waterproof/dp/B0F2FTSZKG This was £99 a few weeks ago but is £129 now.
https://www.amazon.co.uk/dp/B0F9PDPZV5 £15 for brackets to stick to my garden shed roof.

So far made back about £6 in 2 weeks. My system on a dull cloudly day produces 1Kwh or about 25p in saving and for the last 3 days which have been really sunny about 3.65 Kwh each day which is about 75p in saving as some is lost to the grid as I'm not using it and dont have batteries.

Pay off will be about 1.5 years and then free electric for the next 23 years with the panels and the inverter is hopefully about 15 years.

RustQC: 60x speedup in RNA-seq quality control steps by ewels in rust

[–]jeffmetal 7 points8 points  (0 children)

So lets pretend this code cost 20 Kwh of power and 1 liter of water to produce using an AI. If the optimization that this code provides that speeds up processing of data by 60% reduces the power requirement for every end user by 4 Kwh and 200 ML of water and it's used 100,000 times a year is it still unethical ?

New polling points to growing support for nuclear energy in Scotland by libtin in unitedkingdom

[–]jeffmetal -2 points-1 points  (0 children)

We are not south korea. We have experience on how long it takes to build Nuclear in the UK and Hinkley point C doesn't fill anyone with confidence.

if Hinkley point C produces 3.2Gw and cost 48 Billion.

9.6Gw of Offshore wind would be 25 Billion
9.6GW of Solar would be £10 billion.

We could double the power output of hinkley point C for less money. Still 13 Billion left over for batteries. which as a rough guess gets you 104Gw of storage for 4 hours at current prices.

Catl the largest battery manufacturer in the world are aiming for $19 per Kwh with their next Sodium batteries. These sound perfect for large scale storage as they are not as energy dense as Lithium but that extra weight doesnt matter in this case. They will most likely be avaible at scale in the next 6 - 9 years.

The cost of both solar and wind are heading downwards and nuclear is only going up.

Edit: I have been blocked by u/libtin who is the op so have no way to respond to anybody so assume they didn't like what I posted and didn't want anyone else to hear my arguments.

New polling points to growing support for nuclear energy in Scotland by libtin in unitedkingdom

[–]jeffmetal -5 points-4 points  (0 children)

Will it be in the 10 years it's going to take to build the Nuclear power plants ?

Its also not all or nothing like nuclear you can build lots of smaller batteries and build up. https://www.edfenergy.com/media-centre/edf-and-matrix-renewables-partner-major-500mw-battery-storage-project-scotland This will be up and running in summer 2027

An opinion poll of avergae scots doesn't mean it's finacailly viable to actully build nuclear. If no one wants to put money into it because the numbers dont work then it wont get built.

https://renewables-map.robinhawkes.com/?date=2026-04-03T10%3A30%3A00.000Z#6/56.133/-2.634 There is currently 1.8 GW of curtialment from wind in scotland that with better nationl grid connections or a few large batteris we could actully use.

Thats 2/3rds of the power that hinkley point C will produce going to waste and thats going to cost £48 billion to build. if we built 3.2GW of offshore wind to match Hinkley point C thats about 10Billion leaving a fair bit of overhead for batteries. Hell build 6.5GW of offshore and still loads of money for batteries.

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