I’m seriously impressed that the distance between the source conductor, command conductors, and presumably return conductors is considered.
As a power systems and controls engineer we make
Some effort to separate wires carrying different voltages eg 24v and 480v, but positive and negative run in the same cables or conductors in the same raceway all the time with nary a second thought.
How would I turn the power back on when it goes out? It would be a 6 hour drive for me to the power plant. I’ll take my odds with the VPN and satellite internet connection! If someone wants to cause an outage they can drive their car in to a power pole, have an earthquake drop rocks off a bank and crush the pen stocks, have a river change its course and take out 10 poles, send little animals on to the insulators to cause short circuits, have branches fall on the power lines, have droughts make the power plant run out of water... all those things already happened. if some nerd hacks in to my PLC they can’t do anything worse than I’ve already done! Someone physically breaking in to the building could cause a lot more damage, they could just burn it down!!
Could be a bot that copies high point top level comments on threads about the same URL from reddit to HN and vice versa in order to create accounts with high karma for future sock puppeting?
Imagine you are a property developer. You borrow money to buy land and want to build as many housing units on that land as you are allowed to and sell them for as much as you can. Buying granite counter tops in bulk and selling the housing units as luxury is going to make you a lot more than trying to cater to the bottom of the market, so nobody does, unless forced.
It must be easier to get environmental permits for geothermal since it has such a small footprint compared to wind and solar and won’t kill any birds, make noise, make pulsing light, etc.
‘Smart grid’ still uses above ground transmission that is identical. The cost of burial is 10x. In either case the smarts are on the ends of the transmission circuits not the actual mechanical construction of the circuit.
Transmeta was going to be the next big thing, code morphing! Linus was on board. News on slashdot every day! And then ... some product released but no needle moved. I wonder if they built something that got outpaced by intel, needed network effects to take off that never materialized, were ahead of their time, or just no market for their product?
These guys seem like they’ve identified a market and who their first customers are going to be.
You can only code so much as you can - your output is limited to your skill, ability to learn, work ethic or determination, and time. There are all kinds of things that can waste your time - programming something that wasn’t required, programming something in a way that becomes a problem later on, oversights and other mistakes, but hopefully with experience you waste less of your own time by learning from all these previous less than optimal decisions. Now if there is more work to do than you personally want to do - it would just consume your life - maybe it is time to get some help, and then you are managing your helper in some way by guiding what they work on to help you out in the way that helps you get more work done than you could have by yourself. And then you get another helper, and another, and soon enough the team of programmers you are managing can produce more than you could have ever done by yourself. You don’t write much code anymore but You help your team solve problems with the building blocks you have, and keep them on the right path when customers and other forces will try to benefit themselves at your teams expense.
I have a water resistant watch and I understand I can’t go diving with it, but I feel like maybe this glass is more than resistant enough to qualify as “proof”?
When anybody calls anything cyber-whatever it used to be a red flag that they were probably clueless. Unfortunately cyber security has become a de facto term in industrial control networks.
how bad is Cuba these days? I haven’t been since the 90s, but then the grocery stores has pretty limited stock, but i think access to healthcare and education was pretty good.
An increase in embedded generation is the same as a decrease in load to the system. So turning a heater off is akin to “pushing power in to the system”, unless the embedded generation is larger than the load on a feeder, in which case the direction of power flow would be reversed, which may or may not cause problems depending on the protection settings at the substation.
The peak system load and generation on the Western North American grid is 167,000 MW. There is so much inertia there a 10kW power wall isn’t going to do anything.
Forgot range. Which depends on weight. Which is saved by the battery enclosure being a structural member of the vehicle. I think to make a decent electric truck it will take more than strapping some batteries under the box and swapping ice for electric.
Embedded generation will firstly displace local load before exporting any power back to the system. If the generation disconnects all you are left with is the load. If the frequency is falling and the ROCOF protection is going to cause the generation to trip, better to trip the load too otherwise the system just gets an increase in load.
When home renewable reaches a level of penetration where simultaneous loss would be in excess of spinning reserve any further embedded generation will be regulated in such a way as to not contribute to the problem. For instance by prohibiting exporting energy back to the system, and separating your house from the system if the frequency is falling quickly and your embedded generation is going to trip,in order to avoid the simultaneous load step due to the loss of all the embedded generation they could just disconnect it all. And in that case the embedded generation can continue to feed your house if it can operate an isolated network.
My 2016 f150 gets 12.7 l/100km highway, closer to 27 mpg.
edit: woops 12.7 l/100km is actually 18.5 mpg. All these years I thought 10l/100km was 30 mpg! must have done the conversion wrong once and been basing my whole life off it ever since. It's great to find out something you thought was true is not sometimes.
Put a new ski-doo in the back and that’s a sick rig! After living through so many rusted out car bodies I was in to the aluminum f150s but stainless steel is even better. No paint to worry about scratching up on narrow deactivates logging roads.
You’ve clearly never paid the electric bill for a house that used electric baseboards for heat in the winter. 5k cad/yr in BC for a 3000 sq ft house with 6 occupants. Bill for June and July is only $100, it’s all winter heating load.
Comparitively natural gas bills are about $200 for two months in the winter. Many people heat with wood and the air quality goes to shit.