When Electricity first started DC power (direct current) was used. Things were switched to AC (alternating current) power to make things safer. But now more and more devices run on DC power even if they are plugged into an AC outlet.
I believe that buildings need to start going away from universal 110 -120 volt ac power (or whatever the standard is for the country) and switch to low voltage DC power for at least a major part of the building (not for the entire building).
Why? Many electronics as mentioned before use DC power, and to do that every device plugged in to the wall uses a Power Supply unit to convert it into DC power. These units can fail, and can go missing. The PSU can be in a computer or in one of those boxes you see on power chords or phone chargers, or built in to the electronic.
It would allow for more efficient streamlined use of solar power or other renewable and off the grid energy sources.
LED lights run well on DC power. Mobile phones tablets and many other devices could plug right into the wall without a special psu box, and the USB port (or whatever technology) wouldn’t need a conversion to DC either. The great thing about most mobile phones and tablets, and many other devices is they are already standardized to the USB (Universal Serial Bus) interface and many of the newer technologies allow for backwards compatibility to USB.
To do this some devices would need to be changed: desktop computers could have PSU removed. Laptops would have to have a new standardized plug (and possibly new standardized voltages). Besides PSUs draining energy, they are prone to failure, and can hold a dangerous electric charge that can be a shock hazard and in rare cases fire hazard.
Wall plugs would have to change, it could be USB, or something compatible. (I like the lightning plug that is on the phone side of the Apple iPhone since it’s less likely to break or get dirty)
One of the main reasons solar power or any other power sources aren’t efficient as it can be is because of all the unnecessary (in today’s world) conversions (and transporting). Renewable sources work best when everything they power is energy efficient.
I think these concepts would work well on new buildings, buildings doing a major renovation, and buildings that are in remote locations where electricity is hard to get or unreliable.
And it doesn’t need to be done for a whole building or all electronics, it can be done for just some of the electronics to start.
Another concept during the day similar to a sky light, you could use fiber optics to use natural lighting from sun without any conversions (maybe some mirrors to capture and UV filter) no photovoltaic cells or electricity needed and it can be done on multiple floors and without ruining insulation (R Values) and without ruining fire barriers. Night time solar powered battery LED lighting could be used with the fiber optics.
Nathan Steffenson Published July 20 2014
Disclaimer: This is currently just a concept. I’m not an electrician and have no prototype. Although not all working together as a system, many of these components exist and are readily available. I haven’t done thorough research for prior art.
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Fiber optic is a thin, flexible glass cable used to transfer light.
What are fiber optics used for?
Including but not limited to the transfer of data (for things like viewing this web post) at the speed of light.
Data can also include voice (telephone) and video (cable television).
Light is sent at one end and at the other end the light is read.
Fiber-optic media is one of the core components of most networks, used often between building segments, between different floors, between buildings, and long distances between cities, states and countries.
Fiber optics are used for the backbone of most wireless networks including cellular telephones. The backbone of the Internet is fiber-optic cabling.
Fiber optics were first used and still used for a scope to look down a persons throat.
Fiber optics can also be used as lighting. Light is traveled without electrical wiring. Any light source can be used including the sun, LED or laser.
Advantages of Fiber optics:
- Speed.
- Distance
- No radio, electrical, or magnetic interference
- No wire tapping into the actual cabling
- No transfer of electrical surges: reduces chance of damage from a lightning strike
- Multiple uses which allows less (telephone, cable) lines to go into a building.
Dangers of Fiber-optic Cabling:
- During the installation of fiber-optic cabling, utility lines may be broke. Years ago, in St. Cloud MN this caused a gas line break which caused an explosion taking out a city block. Fiber optics that need to be dug should only be done by utility professionals. Call before you dig in MN 811 web http://www.gopherstateonecall.org/
- Touching the glass of a fiber optic cable can cause very bad slivers or cuts.
- Fiber optics can can cause blind spots from the light that travels from them.
- Dangers from the equipment used with the cabling.
- Certain cable coating can be dangerous when melted.
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First in Windows we will export an Open Office writer document to pdf.

In open office writer, with a document that is complete,
we go to the file menu
then Export as PDF

a dialog box is displayed, this gives you some options to adjust the quality and file size.

Click on Export.

A save dialog box is displayed. I’ll Make sure it’s in the right folder,
change the name, for this I’ll use pdfsampletext, and click on Save.


Also be sure it’s saved in open office document format, making it easier to modify in the future.

Now let’s find that PDF file
I’ll go to the Windows start menu
then documents

and then I’ll go to the folder I put in


and then I will click on the file pdfsampletext
it opens in Adobe reader

Next we are saving a file in Microsoft Office’s Word as PDF
With a completed word document click on File menu

then click save as

In the save dialog box next to save as type
select PDF

click Save

The file then opens in Adobe Reader

Next save a Microsoft Excel spreadsheet as pdf.

First make sure the spreadsheet is saved as usual.

Then similar to Microsoft Word we will go to File Menu

then Save as

select PDF next to save as type

click save

it opens in Adobe Reader.

Google Chrome web Browser has built in functionality to save as PDF
- So in Google Chrome for windows we go to the web page we want saved as a PDF
- Click the Menu buton on the right
- Click Print

Chrome – Menu Button on right choose Print - Instead of using a printer we will choose save as pdf

instead of printing choose save as PDF - Confirm Save as PDF

Save as PDF - A dialog box pops up, change the folder location and file name if necessary

Confirm file name and location - then Save

- In Windows File explorer I’m opening the folder we have it saved in

then opening the file - and there it is in Adobe reader

For programs that don’t have built in functionality to save or export a PDF, there is another option and it is print as PDF
For Windows you need to have a program that is a PDF printer. In macintosh this functionality is built in.
So I am going to demonstrate with this with 2 different programs
Neat Works, and CutePDF writer.
For this you have to be in the program you want the PDF document from
In this case I’ll choose Firefox
Click the menu button on the right
Click Print – note that this web page is set up to print as a blank page
Then make sure to choose the PDF printer, in this case we choose

Send to Neat then OK

Then choose the neat library folder, then OK

It may take some time to process it,
Then it shows up in NeatWorks

For CutePDF writer
Choose the print in your program,

Then Choose Cute PDF writer
Then OK

Then choose filename and location.

Then Save

my main use for Neatworks is keeping track of receipts
but its also used to keep track of documents and can combine documents
So first to combine documents I drag them over to NeatWorks

I select all that I want combined by clicking on each item while holding the
Control or Shift Key down

Then under action choose combine


To use the PDF in a different program other than Neat you
choose Export

To PDF
Selected Item
Then in the dialog box, choose the location and name, then Save
Here it is in Adobe reader

A word of caution about the Cute PDF writer:
It is a little difficult to install you have to install 2 parts.
Also if you don’t want the Ask Toolbar or Weather channel app you have to be sure not to install them.
And they do also offer a more featured paid version called Cute PDF Pro
Software used in this video:
Microsoft Windows & MSOffice http://www.microsoft.com
Apache Open Office http://www.openoffice.org
Neatworks http://www.neat.com
Adobe Reader http://www.adobe.com
Cute PDF Writer http://www.cutepdf.com
Chrome browser http://www.google.com/chrome
Firefox http://www.mozilla.org/en-US/firefox
other software to consider:
Adobe Acrobat http://www.adobe.com
Nitro pdf http://www.nitropdf.com
or other operating systems such
Macintosh http://www.apple.com
software and brand names (other than Nates Computer Services and Brainerd Update) are of their respective owners and are not affiliated with this video
