TE
科技回声
首页24小时热榜最新最佳问答展示工作
GitHubTwitter
首页

科技回声

基于 Next.js 构建的科技新闻平台,提供全球科技新闻和讨论内容。

GitHubTwitter

首页

首页最新最佳问答展示工作

资源链接

HackerNews API原版 HackerNewsNext.js

© 2025 科技回声. 版权所有。

How to Get Your Apartment Off the Grid

201 点作者 hellrich将近 9 年前

18 条评论

franciscop将近 9 年前
A bit of context: In Spain, one of the European countries with better sunlight for solar production, some laws were passed recently that make it basically impossible for individuals to resell excess energy to the grid, so selling&#x2F;buying from the grid on demand instead of using batteries is not really an option.<p>That&#x27;s why when we see countries like Germany (not so much sun) going strong for solar Spanish people complain and try to change a corrupt government that passes laws that strongly favors utility companies. Not to say that some of this government relatives <i>work</i> in these utilities.
评论 #11728807 未加载
评论 #11728964 未加载
abraae将近 9 年前
Its incredibly satisfying going off-grid. We have an off-grid cabin and its awesome turning up and finding the batteries fully charged and ready to dispense free electricity.<p>During the summer, rain water, solar power, cooking over a wood fire and walking or cycling to the beach means you can actually live at entirely carbon zero. One of the kids was fascinated by the idea that his iphone had been powered up using on energy from the sun.<p>Kudos to OP for doing all this in a city apartment!
评论 #11727478 未加载
评论 #11728262 未加载
评论 #11727377 未加载
评论 #11727129 未加载
评论 #11728603 未加载
评论 #11729955 未加载
mschuster91将近 9 年前
Nice project, but I disagree on one point:<p>&gt; For lighting, it&#x27;s impossible to fall back on grid power because I had to cut the power cords of all lamps to make them compatible with the 12V DC grid<p>Why not get a cheap-ass car battery charger? He&#x27;s using lead-acid batteries anyway, and a charger for these is approx. 50 €.<p>Or bypass the battery entirely and use a 12V 200W power supply instead of the battery voltage (to avoid overloading your PSU with powering the equipment AND simultaneously charging the battery).
gexla将近 9 年前
&gt;Some important challenges remain, most notably the washing machine, the bathroom and the laser printer. The problem with washing machine and bathroom is that they&#x27;re on the north side of the building, far from the solar panels. We could go to a laundromat but there are none in town. A pedal powered washing machine requires space that we don&#x27;t have.<p>You could try washing your laundry by hand. It isn&#x27;t as much work as it might seem if you have never tried it. There must be something magical in the detergent because I can get clothes cleaner than I ever had with a washer back home with little work.<p>For example, to wash a shirt I just put the water &#x2F; detergent mix in a basin and agitate the shirt with my hands for a couple minutes. Leave the shirt in the basin for 15 minutes for the detergent to do it&#x27;s work. Agitate for another few minutes and then hang. First hang in the bathroom or outside for 20 for the shirt to quit dripping and then I put in front of a fan. The shirt is dry within a couple of hours.<p>Pants can be a bit more work depending on the material. Denim is heavy and eats up the dirt. I do the same as with the shirt but I use a tide bar to spot soap areas which get more dirt (bottoms of the pant legs) and brush those areas.<p>This does take longer than using a washing machine. But the clothes last longer and get cleaner. You aren&#x27;t using electricity, buying an appliance and birthing a hung of metal and plastic that you may one day have to dispose of.<p>One weird effect that doing laundry by hand has for me is that it sort of puts me closer to my stuff. It&#x27;s too easy to get something dirty, throw it in the washer and forget about it. Hand washing makes me more aware of how what I own also owns me and the energy it takes to maintain and carry this stuff around with me.
评论 #11729309 未加载
评论 #11729366 未加载
评论 #11728933 未加载
评论 #11730003 未加载
tardo99将近 9 年前
Could people with houses use legacy PSTN wiring to distribute 12V throughout the house?
评论 #11727331 未加载
评论 #11727581 未加载
评论 #11728446 未加载
评论 #11727311 未加载
评论 #11727323 未加载
taneem将近 9 年前
Why is it a good idea to get off the grid? Genuinely curious. I would think that a networked connection of energy input&#x2F;output nodes that is globally optimized would be a good thing. Not sure why it&#x27;s better for anyone to have every node (home) operate independently.
评论 #11727347 未加载
评论 #11727422 未加载
评论 #11729235 未加载
评论 #11728621 未加载
评论 #11727389 未加载
评论 #11727679 未加载
评论 #11728622 未加载
ZanyProgrammer将近 9 年前
Nice, but a lot of apartment managers would freak out over those kinds of installations being visible, at least for any halfway decent apartments.
评论 #11728009 未加载
评论 #11728918 未加载
kozak将近 9 年前
Sad that we don&#x27;t have a 12V power socket standard that is better than the lighter socket.
评论 #11729567 未加载
评论 #11729550 未加载
frgewut将近 9 年前
Grid actually is good (easier to balance etc). &quot;Utility grid&quot; is what causes most inconveniences.
honua将近 9 年前
What is this, Hacker News or something? :) (Just nice to see this kind of thing on here)
rfeather将近 9 年前
It&#x27;s great that the author wrote up their approach, but one thing I don&#x27;t see is how this was managed with the landlord. There is some clue in that the landlord installed the solar water heater. My interest comes from my belief that my landlord (or more likely the condo association that our apartment is in) would never allow this sort of installation. Aside from &quot;aesthetic concerns&quot;, solar panels can potentially cause insurance rates to go up (firefighters don&#x27;t like to douse electricity generators with water).
评论 #11729591 未加载
dharma1将近 9 年前
I recently built a flat roof 35m2 home office&#x2F;gym at the back of my garden. I&#x27;m currently using an electrical convection heater and a 9kw instant water heater for shower&#x2F;basin.<p>What would be the most cost effective way to use solar instead for heating&#x2F;shower? I was thinking about putting a 100-200 litre insulated tank either inside or outside, and heat that with solar to about 70c, to use for both heating in the winter, and showers. I don&#x27;t need cooling in the summer.<p>Has anyone done this?
makecheck将近 9 年前
It is great to be knowledgeable about energy consumption and conservation methods and to try to spread that knowledge. Realistically however, any <i>action</i> is negligible unless it is done by industries that will have a <i>huge</i> effect on the environment (airlines, for instance).<p>If you want to achieve X, it is ultimately best to spend your time convincing a certain number of local <i>businesses</i> to do X, or petitioning governments, etc.
评论 #11729638 未加载
gravypod将近 9 年前
You might also want to check the batteries you are using for your system. Due to the nature of the small space and high use, I remember from my armature radio license exam that some batteries vent gas when under operation. If I remember correctly, one such battery is NiMH.<p>You should really read into your batteries and your charge controller specifications before doing anything like this.<p>Other than that, this looks great!
franzpeterfolz将近 9 年前
Laser printers need much power for heating. Would it be possible to switch to a ink printer? They should work fine on 10 to 20 Watts. They even have external Poweradapters like a Laptop.<p>It depends on the usagepattern. Not printing enough would dry up the ink. Printing to much could be to expensive or to slow.<p>But heating dust up with a laser to melt it down on paper seems to be very inefficient in terms of energyefficiency.
评论 #11734002 未加载
pjc50将近 9 年前
Nice use of an in house microgrid. To me the striking thing was how the LED bulbs designed to be plugged into 220VAC &#x27;just work&#x27; when plugged into 12VDC; I know this is because of their switchmode power supplies, it&#x27;s still surprising.<p>You could consider doing this with &quot;19.5V&quot; (popular with laptops), although many will work just fine from 12V, or power-over-ethernet&#x27;s 48V.
ilaksh将近 9 年前
Why not place two 250 watt solar panels vertically in the windows. They are big enough.
imaginenore将近 9 年前
All that work to get 150Wh per day? That&#x27;s what, 20 cents worth of grid electricity?