eleitl
@eleitl@lemmy.zip
- Comment on ‘Suddenly energy independence feels practical’: Europeans are building mini solar farms at home 5 hours ago:
Do you have a pointer to such DIY home solar? I was planning to build my next system from Victron components, but this could be an interesting alternative.
- Comment on ‘Suddenly energy independence feels practical’: Europeans are building mini solar farms at home 10 hours ago:
Renewable power generation is not dispatchable, so large fraction of it in generation make grid stabilization interventions more frequent.
Unless your state has a sane generation strategy you should plan for more rather than less power outage events in future. Fortunately commercial home solutions for that exist and are getting cheaper.
- Comment on ‘Suddenly energy independence feels practical’: Europeans are building mini solar farms at home 10 hours ago:
Yes, you can use that as an emergency solution, if you have a battery-buffered solar system with a ups functionality. Most existing balcony solar systems don’t have that.
- Comment on ‘Suddenly energy independence feels practical’: Europeans are building mini solar farms at home 10 hours ago:
The grid-tied inverters need to have a grid voltage and frequency to be in a certain defined range orelse they switch off (this behaviour can be changed via firmware for some inverters). In theory you could use a pure sinus UPS for that, but in practice it is not designed to receive power on the outlet side and will overload/burn out.
There are specific battery/diesel backed solar grid-tied inverter solutions which can smoothly separate and reconnect from the grid during outages while providing power to the consumers. These are far more expensive than simple grid-tied solar inverters.
- Comment on ‘Suddenly energy independence feels practical’: Europeans are building mini solar farms at home 10 hours ago:
Sure, if you happen to have dynamic electricity tariffs, you’re going to change your consumption pattern.
- Comment on ‘Suddenly energy independence feels practical’: Europeans are building mini solar farms at home 1 day ago:
Yeah, you can run a few systems on a circuit that way, but most of the ups-like storage inverters are not integrated into your solar PV system, so don’t try to minimize feed-in into the grid and maximize locally generated power consumption.
- Comment on ‘Suddenly energy independence feels practical’: Europeans are building mini solar farms at home 1 day ago:
My point is that with this basic setup (I run 2 kWp) is that you still lose power when the grid goes down, so your relationship to the grid is not totally changed. The only thing you notice are smaller bills.
The disadvantage is compared to a a insular/black start capable setup which is more expensive/complicated (and needs a licensed electrician to be legal) but lets you run on battery when the grid goes down.
- Comment on ‘Suddenly energy independence feels practical’: Europeans are building mini solar farms at home 1 day ago:
The disadvantage is that you still lose power when the grid goes down, even if you have storage. Unless you run parallel circuits, and your system is island/black start capable.
- Comment on A million new SpaceX satellites will destroy the night sky — for everyone on Earth 1 day ago:
Starlink is 2/3rds of all satellites. They add 5-6 pdr day, lose one øer day.
- Comment on Age checks creep into Linux as systemd gets a DOB field 2 days ago:
It has been sold as just an init system to people who argued it’s a Katamari Damacy. We now know who was right.
- Comment on Age checks creep into Linux as systemd gets a DOB field 2 days ago:
Remember when they said “relax, it’s just an init system, no biggie”? Pepperidge farm remembers.
- Comment on [deleted] 3 days ago:
It may be a shady company, but Russia is blocking Telegram because it is not complying with the regulations.
- Comment on Online age checks came first — a VPN crackdown could be next 3 days ago:
That sure didn’t stop Russia from blanket banning VPNs.
- Comment on New computer chip material inspired by the human brain could slash AI energy use 6 days ago:
Abstract
The escalating energy consumption of existing artificial intelligence hardware has become a serious global issue that demands immediate action. Neuromorphic computing offers promises to drastically reduce this footprint. Here, we introduce multicomponent p-type Hf(Sr,Ti)O2 thin films for energy-efficient, resistive switching–based neuromorphic devices. We demonstrate interfacial memristors with ultralow switching currents (≤~10−8 A), exceptional cycle-to-cycle and device-to-device uniformities, and retention >105 s. They reveal hundreds of ultralow conductance levels with a modulation range of >50 (without reaching any saturation) and reproducibly satisfy unsupervised learning rules. This performance originates from incorporating a self-assembled p-n heterointerface between p-type Hf(Sr,Ti)O2 and n-type TiOxNy, resulting in a fully depleted space-charge layer asymmetrically extended into Hf(Sr,Ti)O2, a large built-in potential, and extremely low saturation current density under reverse bias. Ultralow conductance modulation is controlled by tuning p-n heterointerface’s energy-barrier height through electro-ionic charge migration. This materials-engineering strategy addresses energy consumption and variability in existing memristors, opening a pathway toward energy-efficient neuromorphic computing systems.
- Comment on This is Android's new 'advanced flow' for sideloading apps without verification, includes one-day waiting period 6 days ago:
I use the browser with a hardware TAN generator, though my bank’s app works fine on GOS.
- Comment on This is Android's new 'advanced flow' for sideloading apps without verification, includes one-day waiting period 1 week ago:
It just works. Some banking apps won’t.
- Comment on PwC will say goodbye to staff who aren't convinced about AI 1 week ago:
Name me am (IT) consulting company which isn’t pushing AI.
- Comment on Tech hobbyist makes shoulder-mounted guided missile prototype with $96 in parts and a 3D printer — DIY MANPADS includes Wi-Fi guidance, ballistics calculations, optional camera for tracking 1 week ago:
Ukraine and Russia are western countries. Narco cartels have started using fpv drones, too.
- Comment on Tech hobbyist makes shoulder-mounted guided missile prototype with $96 in parts and a 3D printer — DIY MANPADS includes Wi-Fi guidance, ballistics calculations, optional camera for tracking 1 week ago:
There are plenty of very safe HEs.
- Comment on Tech hobbyist makes shoulder-mounted guided missile prototype with $96 in parts and a 3D printer — DIY MANPADS includes Wi-Fi guidance, ballistics calculations, optional camera for tracking 1 week ago:
Plastic explosive triggered by electrodetonator is quite safe.
- Comment on Your Phone is an Entire Computer 1 week ago:
I have no beef with Apple but with its users, who want from Apple something which it is not selling.
- Comment on a VPN that is easily self-hostable and resistant to blocking? 1 week ago:
Russia has harsher blocks than China, meanwhile.
- Comment on Microsoft wants devs to build Electron AI apps on Windows 11, says no need of native code, despite RAM concerns 1 week ago:
Unix was the resson I started using Linux.
- Comment on Goodbye Google - I self-host everything now on 4 tiny PCs in a 3D printed rack (CaptainRedsLab) 1 week ago:
Can’t even watch it with my always on VPN.
- Comment on Your Phone is an Entire Computer 1 week ago:
The point the blog author was making: “I’m bothered, as I have been since the original iPad introduction 16 years ago, by the unnecessary restrictions placed by corporate powers to run third-party software and operating systems on devices we own.” Open source operating systems do not restrict the freedom of the user.
- Comment on Your Phone is an Entire Computer 1 week ago:
People willingly buy blatantly proprietary systems, then publicly muse why they don’t have freedom to do with them what they want.
- Comment on Easy-to-use solar panels are coming, but utilities are trying to delay them 1 week ago:
Yes, so people should stick to the legal options. It isn’t hard.
- Comment on Iran includes American tech giants on list of new targets 2 weeks ago:
You have no idea about the NATO-Russia war nor how modern attrition wars work. Can’t blame you, MSM are a hall of distorted mirrors.
- Comment on Yann LeCun just raised $1bn to prove the AI industry has got it wrong 2 weeks ago:
They don’t even have state in the weights blob. It’s all tokens in an input vector.
- Comment on Easy-to-use solar panels are coming, but utilities are trying to delay them 2 weeks ago:
But if your house burns down because of your unlicensed configuration, the insurance won’t pay, and if people got hurt there will be a criminal investigation.