Tag Archive for: renewable energy

Photo Credit: Inhabit

 

Energy consumption is ever increasing. Supply systems can’t keep up with the demand and are maxed out, causing blackouts, unreliable service and headache. There is limited distribution for rural areas and alternative sources are difficult to integrate into the existing network. How are we to provide energy to a growing and more connected world?

A smart grid is a digital electrical grid. It gathers, distributes, and acts on information through meters that communicate via a wireless mesh network in order to improve efficiency and sustainability of electrical services. Often smart grids can reduce peak demand, shift usage to off-peak hours, lower total energy consumption, and actively manage other usage to respond to solar, wind, and other renewable resources. It allows consumers to optimize the generation, transmission, distribution, and use of energy in a more efficient way. Smart grids are slowly being implemented across the U.S. and Europe.

As a broad concept, a smart grid is envisioned to have the following key characteristics:

  1. Self-healing: The electricity grid rapidly detects, analyzes, responds, and restores power supply;
  2. Digital technology: Two-way communications and ubiquitous metering and measurement enable finer control of energy flows;
  3. Integration: The grid accommodates a variety of resources, including renewable energy (solar, wind, biomass and hydro), demand side management and efficient end-use,
  4. Empowering: Incorporates EE consumer equipment and behavior in grid design and operation,
  5. Power quality: The grid provides quality power consistent with 21st century consumer and industry needs,
  6. Cyber security: The grid mitigates and is resilient to physical/cyber-attacks, and
  7. Fully enables and is supported by competitive electricity markets

The development community has been slow at discussing and beginning to analyze the impact smart grids could have, perhaps because the outcomes can be varied. The UN Industrial Development Organization (UNIDO) has suggested smart grids for Sub-Saharan Africa as a solution to the lack of access and increasing population. A smart grid could leapfrog elements of a traditional power system and offer where it was impossible before. It can also offer lower rates during off-peak hours, charging for energy consumption via mobile phone. USAID has signed a partnership for smart grid technology development with Russia and India.

The most exciting example of implementation for 2012 is that of Equador. Under the state-owned electric utility, Electrica de Guayaquil, Equador has installed a meter-to-cash smart meter system that uses Itron and Trilliant’s communication platform. The communication network manages energy loses accurately, measuring use and other applications like theft analytics.

 

Huichol women sewing and using portable light unit

Photo Credit: Portable Light

Maria Carillo sits at a table weaving a beautiful Huichol textile and talking to her mother who threads a needle to work on her intricately beaded piece of artwork. The sun is beginning to lower in the Mexico’s western sky and the looming darkness threatens their ability to work. These pieces must completed and sold tomorrow in the market nearby so the family can pay for Maria’s school.

 

Maria set down her needles, picks up her nearby woven handbag, and hangs it high above the table where her and her mother sit. After being switched on, the handbag produces a warm glow of light in the darkened hut, and work resumes.

 

She is using the Portable Light Unit, a simple, versatile textile with tiny solar nano-technology cells that can be woven into energy harvesting bags, or other textiles, using local materials and traditional weaving and sewing techniques.

 

Huichol textile

One of the Huichol textiles

Maria is Huichol or Wixáritari, a semi-nomadic indigenous group located in western central Mexico living in the Sierra Madre Occidental mountain range, internationally recognized for their production of intricate and colorful textiles.

 

Similar to the two billion other people who live without access to electricity, the Huichol people live in rugged terrain, where the centralized electrical distribution is costly to implement and maintain. Building the infrastructure often causes irreparable cultural and social damage for indigenous peoples as well as environmental damage to their lands. The combined lack of resources, and damage to their homes, leaves them inadequately prepared and economically displaced.

 

The Portable Light Project, a non-profit initiative led by Kennedy & Violich Architecture and Global Solar Energy, aims to combine clean energy and lighting with local indigenous textile production. This helps local communities adopt the new technology, adds value to it by including their own work, and heightens economic production; all without removing the Huichol from their traditional way of life.

 

Miquel Carillo, Huichol Community Leader in Santa Catarina describes the frustration of their hardships without a light source:

We don’t have light. We can only work during the day. Nobody can do anything. We just wait for the sun to come up again

 

The Portable Light project provides kits containing a flexible, two-watt solar film, rechargeable battery, USB port, and an LED light and training on how to weave them into garments.

 

handbag with solar panels

Bags can be worn during the day to recharge

By integrating the solar panels with the woven textiles, electronic devices can be easily charged while people go on with their everyday work; and fully charged LED lights allow four hours of visibility, enabling communities to work and study after dark.

 

The integral USB port is used to charge cell phones, which connects Huichol artisans with art dealers and stores in urban areas without removing them from their homes.

 

The Huichol people and indigenous weaving projects are not the only way Portable Light Units are being utilized to better the livelihoods of communities in developing regions.

 

Nicaraguan girls using the bags for Paso Pacifico

Nicaraguan girls using the bags for Paso Pacifico Photo Credit: Sheila Kennedy

A environmental education program in Paso del Istmo Biological Corridor in Nicaragua uses the bags to help protect endangered sea turtle nests. Villagers work as rangers to prevent turtle poaching at night. They use the Light Units to charge cell phones so they can communicate the location of nests, and women use them to build eco-tourism businesses at night.

 

 

 

In rural Haiti, the bags are being used to support the NGO Maison De Naissance, a network of traveling health workers who provide prenatal and basic medical care. Health workers and midwives use the Portable Light Units as a renewable light and power source for house visits and night procedures. The USB port is used to charge cell phones and medical devices, connecting them with physicians at the clinics who have better intel to help make accurate diagnoses.

 

Health worker in Haiti using Portable Light Photo Credit: Lee Cohen

Health worker in Haiti using Portable Light Photo Credit: Lee Cohen

The Portable Light Project is a promising example of how to combine economic productivity with environmental conservation in remote areas, but some critics remain skeptical.

 

Few argue that there is not an economic model to produce mass amounts of the Portable Light Units to supply the huge demand for electricity in rural areas. Others contend that the garments will not be able to withstand rugged conditions common in developing regions.

 

Frederic Krebs of the Rios National Laboratory for Sustainable Energy in Denmark who designed a low cost, plastic solar lamp for Africa, expressed his hesitancy. He maintains through his research that a high degree of ruggedness is required before portable solar lights can help people developing regions. It was in Krebs opinion that such textiles are, “simply not wearable enough yet.”

 

These are components of the Portable Light Project that need to be addressed before it can be used all throughout developing regions. However, the Portable Light Project holds promise for bringing a renewable source of light into communities who otherwise have been sitting in the dark.

PHoto of studying using the portable light

Photo Credit: Sheila Kennedy

 

Eric Youngren, founder of Solar Nexus International, serves as a catalyst for reliable, rural power solutions in the developing world.  The Solar Nexus power center is an innovative solution for electricity that brings the quality tested North American off-grid solar installations to areas of the world where similar systems are rarely found.

The SolarNexus is an all-encompassing system, where all the high quality electronics necessary to convert the energy generated by the solar PV panels (or any other source of renewable energy) into power that is stored in batteries for later use.

SolarNexus power centers are sold as part of a complete package, shown here. The package includes PV panels, deep cycle batteries, mounting hardware, code-compliant wiring, and instructions

SolarNexus power center is designed for permanent indoor installation and includes instructions, training and support to ensure successful installations and build capacity in local communities. To understand how the Solar Nexus system operates, view this great introductory explanation on the Solar Nexus International website

Installation was performed by Ensol, of Dar es Salaam, TZ Photo Credit: Eric Youngren

A project was launched in April 2010, Solar Nexus International shipped 30 complete SolarNexus systems — including PV panels and deep cycle batteries — to Tanzania for a project run by the U.K. based charity SolarAid. The systems would be used to provide light and power to schools that were beyond the radius of the electricity grid.  The mission was to replace the old, smokey, and potentially dangerous kerosene lanterns with effective, compact fluorescent light. This improved visability would allow more local children to attend the schools.

Eric traveled to Tanzania to assist in the training of local installation crews and help facilitate aptitude.  One main goal of the founder and his company is to improve the knowledge, skills and capacity of the solar installers in the developing world to ensure the system’s sustainability and overall impact.

Visit the Solar Nexus International website and their blog for more information on current projects

This article written by Babar Bhatti discusses how public policy is being used to drive long term benefits for society, the Universal Service Fund of Pakistan has made the use of renewable energy compulsory for all Base Stations funded by USF

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