StarSight – Solar powered street lamps with wireless access points

solar lamppost
This project seems like it could be a good fit for developing but urban settings where there is fairly high population density, a budget for deploying infrastructure, and enough community support to limit problems with vandalism or theft of the equipment.

Starsight (Starsightproject.com) is a project designed to supercharge street lighting and power in developing counties. Essentially it is a network of pylons, each with a solar panel, linked not by cables but by antennae which use wireless internet protocol.

The Starsight idea came out of the involvement of London-based sustainable development specialist the Kolam Partnership in an urban street lighting initiative in Cameroon.

Reliable street lighting can help a country to develop – a study by the Kenyan government recently found that street lighting reduced crime by 65 per cent. The benefits are even more widespread – aid workers and foreign businesses are more likely to stay on in a country if they feel secure.

One of the project partners is a Next-G, a Singapore-based wireless manufacturer which is building the pylons. If the project scales up, perhaps they can find a way to set up in-country fabrication of the poles, rather than importing them.

As an aside, solar panels are commonly seen at road intersections in Bangalore. If you look carefully at the top right of this photo, you’ll see one on the street sign pylon behind the tree branches.
IMG_1539
Links:

Skybuilt Power – Hybrid Wind-Solar in a Shipping Container


Check out the Skybuilt MPS (Mobile Power System). These transportable (not exactly “portable”) power systems fit inside a standard shipping container, which means it can be moved using standard rail, ship, and trucking systems. It can also be dropped by parachute. Power output depends on the configuration, but ranges from 1KW up to 50+ KW. It looks like their basic configuration uses wind and solar power, the higher power systems would probably require fuel-powered (diesel or gas) generators.

From the Skybuilt web site:

The MPS is a complete power station in a standard shipping container. It can be transported by truck, train, ship or plane.

At the site, you can deploy solar panels or wind turbines in just a few hours, for self-generated power. Or, use diesel, propane, natural gas or gasoline-powered generators.

The interior of the MPS can be used for anything—air-conditioned office space, telecommunications, medical center, emergency operations/command center or storage.

It reminds me of the shipping containers used for buildng rural telecenters in the LINCOS program. Also some prototype mobile command centers at the Future Battle Lab back in the late 80’s, which were containers stuffed full of computers and electronic equipment in shock mounts that could be dropped out of a C-130 and unfolded into a working field command post.

Looks expensive, but would be great for setting up a remote facility somewhere in a hurry.

via alarm:clock

Voltage Stabilizers and Hidden Costs of Rural ICT

Came across a couple of posts which prompted me to dig up some of my backlog of material from the Kuppam program.
Voltage Stabilizers at Kuppam i-Community Office
Voltage stabilizers are uncommon and almost unknown in the US, but in India, voltage stabilizers are household equipment. Although the electrical service is nominally 240 VAC, in many rural areas the grid is underpowered, with priority given to agricultural users. This leads to scheduled power outages and wildly varying line voltages. While it is possible to run computers and other IT equipment directly from the AC line, this commonly leads to rapid equipment failure due to repeated undervoltage and overvoltage conditions.

Solar Panel Array at Kuppam i-Community Office

The Kuppam i-Community program office is equipped with rooftop solar panels, diesel generator backup, and a voltage stablizer system. This site houses a computer training center, network servers, wired and wireless network routers, and various desktop computers for staff use. There are classes and activities there throughout the day, and the servers support network traffic from the entire region, so there is a premium on keeping the facility running as much as possible.

Diesel Generator at Kuppam i-Community Office

Although the cost of the IT equipment continues to decline rapidly, the cost of power systems has remained fairly constant. Fortunately, the general trend is for lower power consumption devices in the developed markes, which leads to trickle-down availability for the developing markets.

While most rural IT installations will not be as elaborate as this one, the indirect cost of providing power is an important consideration in building and sustaining information utilities for rural developing areas.

A sarcastic look at stabilizers sales boosting India’s GDP

But think some more: why do we need stabilizers in the first place? Because the voltage of the electricity that’s supplied to us fluctuates wildly. That happens because of inefficiencies in the generation and transmission of electricity. In India, we are so used to these fluctuations that we don’t even think they are abnormal: we simply buy stabilizers and use them like any other consumer product. Hell, they are just another consumer product.

We likely also don’t think, as we buy stabilizers, that we are pumping up the GDP of the country, which we are. But if we did think of that, we might find a small perversity here. Since we tolerate inefficiency in one part of our economy — the generation of electricity — we need devices whose production and purchase shore up another part of our economy.

One person’s recollection of life with stabilizers When Stabilizers Don’t Suffice

Around 1988, what we had was farm that needed lots of power, a tube-well that needed lots of power, and a house that needed a little power. We also had an authorized three-phase line, which used to supply some electricity everyday. It was another matter that for the few hours a day that we had it, we needed an ammeter to figure out whether we had power or not. When the rest of the city was moaning about power cuts, we felt blessed to have any power. We also had local generators, that could run for nine or ten hours, producing electricity at four times the cost, and consuming precious diesel, before requiring a mechanic, but those were needed to run the farm. Get us our daily bread, butter and cup of water.

See also: Ethan Zuckerman’s post from PopTech on Negroponte and the $100 Laptop

Solar backpack wireless hotspot

wireless hotspot in a solar power backpack
Here’s a wireless hotspot based on the Voltaic solar backpack: article link (Popular Science), blog link (Mike Outmesguine)

What if you could marry the short-range power of Wi-Fi with the huge coverage areas of high-speed cellular services such as EV-DO to create a portable hotspot?

Parts List
• Junxion Box wireless gateway $700; junxionbox.com
• Verizon Wireless EV-DO PCMCIA card $100; verizonwireless.com
• Voltaic Systems solar-charging backpack $230; voltaicsystems.com

Solar power backpack, briefcase

Voltaic solar backpack
The Voltaic Backpack is a little pricey (US$229), but would be just the thing for putting together a field survey kit for building rural wireless networks, disaster assessment (e.g. post-tsunami or earthquake), or other off-grid surveying applications. It provides a small set of solar panels mounted onto a backpack, which can generate power while you’re wearing it. The panels have a peak output of 4 watts, and charge a 2200mAh battery, which isn’t enough to run a notebook computer, but is enough to keep a GPS and cell phone, PDA, or camera running from the panel, and is probably enough to run a carefully chosen wireless access point as well.

There are several different backpack sizes available from Voltaic, as well as a messenger bag, but the solar panels and battery charging systems are identical for all models.

SolarMAX 28 watt solar briefcase 
For portable-but-not-quite-mobile applications, the SolarMAX 28 watt solar briefcase from Sunshine Solar actually does put out enough power to run a notebook computer (my IBM T42p draws around 15 watts on batteries, with the display at medium brightness and with wireless and disk access going). It’s even more expensive though (UK 199, roughly US$350), not including batteries.