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Found 8 results

  1. Winter will be arriving and with that, so too will the time come to turn up the heat to prevent freezing to death. There are different ways to stay warm for the season. There are electric heaters and heat pumps that use electricity to do the warming, there's natural gas, propane and butane (often classified as Hydrocarbon Gas Liquids or Liquefied Petroleum Gas), heating oil and solid fuels like wood and charcoal. It'd also be interesting to know why one might make their choice such as purchase and installation price, lifetime cost, cleanliness and reliability. Do take note that I'm asking for your preferred primary mode of heating. I did hear about households that use solar collectors to supplement their heating but that's just it: it's a supplement. I've also heard of geothermal heat pumps. Those still need electricity to run. Since I live in a tropical climate, I can't answer this poll myself. As for why I brought this up, energy is a topic I'm interested in and my curiosity is getting the better of me. Ultimately, I thought it best to lump in biofuels as they too can be solid, liquid or gaseous. Refined biogas (biomethane), for example, is indistinguishable from natural gas. In some places around the world, refined biogas simply gets mixed in with natural gas. EDIT: Fixed the poll. Sort of. It'll do. I just hope it works.
  2. Consider this a brief introduction to the topic. Whether you are just a homeowner, a business or a utility and you're looking to produce energy -- whether to save money or to make money -- suffice it to say we're living in an age of alternatives. There really are a plethora of ways to do that nowadays. Sources include natural gas, (crude) oil, coal, nuclear, hydro-electric, biomass, solar, wind and geothermal for the most part. So how do you even begin to choose? While there are many factors to consider, a very important one is the lifetime costs of generation per unit of energy produced. The lifetime costs consists of three basic components: starting costs, running & maintenance costs and disposal costs. You really have to include EVERYTHING. Now you add all these up and what you get is the total lifetime cost. The next thing to do is make a calculation of how much electrical energy is going to be produced over the lifetime of the project. Have those two figured out? Good. What you now do is take the total lifetime cost and divide it by the amount of lifetime energy production. What comes out the other end is the lifetime cost per lifetime production. The unit is often denoted in $/kWh or ¢/kWh (dollars or cents per kilowatt-hour). This is the so-called Levelized Cost of Energy. This is how you can compare different energy sources and production methods in a more apples-to-apples kind of way.
  3. OK, so hypothetically speaking, you are considering putting solar panels up on your roof and you're wondering if it's going to be worth it. In addition, solar panels are stated to last about 25 years (at least that's the local warranty). So then within those 25 years, those solar panels are going to be pumping electricity into your house as well as the electric grid and you'll be paid for all the energy that those panels generate. Now, within that 25 years, how many times over does the investment have to pay for itself for you to think that the investment is worth it? IMO that number is 3 times over: 1st time to pay for itself. 2nd time to pay for its eventual replacement 3rd to profit. So that means that the solar panels installation would need to pay for itself once every eight years roughly for me to deem it to be a good enough investment. How many times over would it need to pay for itself, you think? It'd appreciated if you can give your reasoning as well.
  4. OK, this is going to be pretty huge... Eos Energy Storage Awarded $2.1 Million from California Energy Commission for Ground-Breaking Battery Demonstration What is this battery demonstration all about? It's about battery energy storage becoming more integrated with the electric grid. This snippet goes into greater detail on that: The next thing I'd like to draw attention to is what's underlined above; Eos' Aurora DC battery technology. Just the claim that their batteries will compete with copper wire seems outlandish so I need to explain what they're talking about there. The thing about electric grids is that they are built to supply peak demands. If the peak demands were to become more than the grid can transport, then additional copper lines and cables must be installed to carry that extra power. It'd be a lot to explain but let's just say that if energy storage is made accessible and used well, the power lines of the present won't need to carry bursts as large as they do today which means that bulking up the grid can be postponed and future power lines can be slimmed down if the technology is applied. Savings could be huge. What's more, a price point of $160 per kWh is obscene in how low it is! Today, Lithium-Ion batteries; the kind you tend to find in laptops, cell phones and electric vehicles, tend to cost about $500 per kWh of capacity. That's quite a contrast, isn't it? Energy storage at that cost could transform the way energy is supplied to our wall outlets. Of course, we won't really notice anything as consumers but utility companies do stand to profit greatly from this due to savings in infrastructure investment as well as really starting to take advantage of the near zero marginal costs (the cost to produce an extra unit of something) of renewable energy sources. Given that this is after all a pilot demonstration project, it's going to be a few years before these changes start to take shape.
  5. I realized sometime yesterday that it's quite possible that no only would a human be unable to use magic in Equestria, they would also be unable to experience any effect from magical spells. Let me explain. In our world, there is a binding principle, something which connects every living being together. To have it is essentially life itself. That force is electricity. Our entire body depends on carefully layered out electrical signals telling our bodies what do. When we're hit by an electrical shock, all sorts of negative reactions occur because the signals in our body can't handle the influx of foreign energy. This goes the same for all other living things. In Equestria, the binding principle is magic. Every living thing thrives on the magical energy that runs through their bodies, and in unicorns cases, they are able to manipulate that energy for a variety of uses. When a pony is hit with an energy blast, they're hurt because their bodies cannot handle the influx of magical energy. This is can cause massive damage(Celestia was rendered unconscious in A Canterlot Wedding). It's based primarily on resistance, however; too little, and the attack will have no effect(Trixie in Magic Duel). To ponies, things that would compromise magical systems in any form are dangerous(I assume magical leylines,places full of excessive amounts of magic,exist; such places would be incredibly dangerous for ponies to go to.). Where am I going with this? The two different energy systems would be totally incompatible with each other. You would be a magical sink:the energy would go directly from your body to the nearest compatible source without ever affecting you. Trying to hurt a human through magical blasts would be like trying to hurt a rock by pumping it full of electricity. That's the theory. Of course, any by-products of magical effects would still work, like heat. A magical explosion would still very well hurt you. Also, your body would eventually absorb magic through the environment, meaning eventually magic would begin to affect you after a while. I may have missed something here, though, so feel free to correct me. Discuss to your hearts content.
  6. Yeah, we all know how inconvenient power outages can be, sometimes infuriating. Not only does it depend on how often it happens but also for how long the power stays out when it happens at all. Then there's this question; what's your opinion on your electricity provider's reliability? As for me, those tend to happen about once a or two year going out for maybe one or two hours at a time. Where I'm staying now, the past two years have gone without a hitch. I would say that our power company is reliable enough. Still, when they do happen, it can just about ruin your day.
  7. So, how's about we talk about what cooking technologies are out there? I've been hearing about induction cooking and induction stoves. For any who don't happen to know what induction is, it's about creating an electric voltage through magnetic fields. This principle is used in generators to generate the electricity you're using right now to read this message. More in induction cooking as it doesn't seem to be very well known, the most basic thing about it is that the only things that gets hot are the pots themselves. With gas stoves, burning the gas releases heat and that heat in turn heats up the pot. Induction stoves feed on electricity but unlike common electric stoves, there is no heating element. In fact, the heating element is are the pots themselves. This definitely has its benefits. For one, because there is very little waste heat, the kitchen doesn't get as hot as it would with gas or even common electric stoves. What's more, unless you're plugged in to a municipal gas piping, no more round trips to replace empty gas tanks. You can also say goodbye to any gas-related hazards as well. These stoves are also incredibly easy to clean and are generally safer as well. Here are two interesting pics to illustrate this working I'll say it again: the heating element is the pot itself. Some caveats; I'll start with the most important point; not all pots are suitable to be used with induction stoves. Aluminum and copper doesn't work well. Ideal pots are made from materials with good magnetic properties. That is, if you stick a refrigerator magnet on a pot and it sticks weakly if at all, that pot is not going to cook very well. If the magnet does stick well then that pot's going to be very effective with this technology. The of course there's the obvious drawback that if the power were to go out for any reason whatsoever, you can't do any cooking. As for me, I've been doing a lot of thinking... I'm still unsure at this point.
  8. I was wondering why do the equestrians use candles? Do they have electricity? What about that dam in "The mysterious mare do well" was it hydroelectric? This is all way over analyzing the show I know. But still I cant help thinking about it.