Internet over Power – The Facts


“Power Line Communications” essentially means any technologies that enables information transfer at narrow or broad band speeds over power lines by utilizing advanced modulation technologies. Based on the country, the institution and the business, power line communications are grouped under a few different categories:

  1. P-L-C (Power Line Communications)
  2. P-L-T (Power Line Telecommunications)
  3. P-P-C (Power Plus Communications)


The History of PLC

Power line communication has been around for quite some time, but has only been used for narrow band tele-remote relay applications, public lighting and home automation.

  • PLC first began at around 1996.
  • 1950:  At a frequency of 10Hz, 10kW of energy one-way, remote management of street lights began.
  • 1980s: Research into the use of the electrical grid to assist data transmission, bands between five – 500Khz in a one-way direction
  • 1997:  Tests for bidirectional data signal transmission began over the electrical provide network and the beginning of research by Ascom (Switzerland) and Norweb (U.K.)
  • 2000: first tests carried out in France by EDF R&D and Ascom.

Operating principles

PLC Broadband technology is capable of transmitting data via the electrical supply network, and therefore can extend an existing local location network or share an existing Internet connection via electric plugs with the installation of specific units.

The principle of PLC consists in superimposing a high frequency signal (1.6 to 30 Mhz) at low power levels more than the 50 Hz electrical signal. This second signal is transmitted via the power infrastructure and can be received and decoded remotely. Therefore the PLC signal is received by any PLC receiver located on the identical electrical network.

An integrated coupler at the entry points eliminates low frequency elements prior to the signal is treated.


Legality and Permitted Uses

All technology running on a defined frequency band need to be component of a legal framework. PLC networks are at the same time each electrical supply networks and telecommunications networks, the resulting circumstances are that the authorities have encountered a few difficulties defining their legal framework. Furthermore, no precise regulation exists for PLC equipment and networks. There are presently operates in location with the PLC Forum and the ETSI, but final results have not been published to date.

As a result the installation of PLC networks is currently unregulated as regards the installations situated behind a private meter (known as “Indoor” or “InHome”), they are nonetheless subject to the condition that they do not trigger negative side-effects, in which case the equipment should be removed. Relating to external installations (called “Outdoor”) exactly where the signal is transmitted at the HVA/LV transformer level to develop neighborhood electrical loops, testing permits are needed from the Telecommunications Regulatory Authority so long as the technology is still in development and standards have not been published.



The only standard that exists is the American Homeplug V1.0.1. This standard is only applicable for “indoor” installations and is not interoperable with existing “outdoor” applications. Other standards will emerge over the coming few years.

NB: All equipment obtainable to the public to date conforms to the “Homeplug” standard.

Broadband over power line (BPL) is a technology that enables data to be transmitted over power lines. BPL is sometimes called Internet over power line (IPL), power line telecommunication (PLT) or power line communication (PLC). This technology uses a medium wave, short wave and low-band VHF frequencies and will operate at speeds similar to those of digital subscriber line (DSL). BPL has existed for many years, but so far, hasn’t been implemented on a broad scale because of technical difficulties involving interference.

Initially it was hoped that BPL would allow electric organizations to provide high-speed access to the Internet across what providers call “the last mile.” In this scenario, the service provider would deliver phone, television and Internet services more than fiber or copper-based lengthy haul networks all the way to the neighborhood or curb and then power lines would bring the signals into the subscriber’s home. The BPL subscriber would install a modem that plugs into an ordinary wall outlet and pay a subscription fee similar to those paid for other sorts of Internet service. No telephone, cable service or satellite connection would be necessary.

Proponents of the technologies speculate that even if BPL is not accepted as a viable way to deliver high-speed Internet access, it may discover a location in helping buyers to manage their power consumption. High-speed data transmission between electrical plugs in a developing would enable devices such as thermostats, appliances and intelligent meters to communicate with each and every other.


Where this could go – or where has this already gone.

The DHS in the US has had a very keen eye on the advancements of this type of technology and have implemented it into their ever increasing police state by applying it into everything from streetlights that can record audio and video, to the newly released “Smart Meters” that can record and send files that have the encoding of any transmitting devices inside the home.

Let’s say your watching MAcGyver on TV.. that channel emits a frequency that can be read by a device that will tell the reader what your watching, the channel, and the duration. These little patches and packets of data can then be used to evaluate patterns. The same goes for something as ubiquitous as a coffee maker,.

In the end the data collected over a period of just a few days could generate a profile on a network, giving specifics right down to the time they use the bathroom, and whether its a new action or a re-occurring action, as well as the recurring probability of another repeat action.

Internet over Power


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