Mill wastes used to generate renewable energy: Sarawak

According to Sarawak Timber Industry Development Corp (STIDC), major plywood mills in Sarawak are increasingly using wood residues to generate energy for their operations.

That's cool!



There are now 14 biomass plants in Sarawak, which supplied energy for use in the mills. In fact, major timber groups such as Shin Yang, Samling, Rimbunan Hijau, Ta Ann Holdings and KTS all owned biomass plants. Last year the volume of wood residues consumed by these biomass plants was about 1.1 million tonnes. - Sourced The StarBiz.

One of Sarawak's major timber mills - Rimbunan Hujau. Photo: arctracer

Ample supply for biomass fuel

Besides using their own wood residues, some of the mills also sourced wood wastes from smaller mills and other wood processing factories to feed their biomass plants. STIDC figures show that there are 45 plywood mills, 171 sawmills, 21 veneer mills and 34 dowel/moulding mills in Sarawak.

Using wood residues to generate electricity was one effective way to manage wastes so that it will not cause harm to the environment. In the early years in Sabah and Sarawak, wood residues were not utilised economically with much disposed of through open burning, burning in incinerators or dumped into the river causing pollution and other environmental problems.


Generating capacity

KTS group deputy MD, Mr. Lau said an average plywood mill with a monthly output of between 7,000 m3 and 8,000 m3 can generate wood residues to produce between 3MW and 5MW of electricity.

A biomass plant with 3MW capacity will cost between RM10mil and RM15mil to build while the capital investment in a 5MW power plant is between RM20mil and RM30mil. The amount of electricity a biomass plant can generate will depend on the type of technology used.

Lau pointed out that biomass plants were not cheap in terms of maintenance whereby plywood mills with their own biomass plants would still have to pay Syarikat SESCO Bhd, which is owned by Sarawak Energy Bhd for standby electricity based on minimum and maximum demand.


Payback period

Although the one-off capital investment in a biomass plants is huge, the long-term economic returns from energy savings would be substantial if plywood mills had to purchase power from the state grid.

A plywood mill manager said his mill could save between RM400,000 and RM500,000 a month in electricity bill by having its own biomass plant. As such, simple payback period for a 3MW plant is between 2 to 3 years.

That is pretty fast if you ask me.

Solar Charity: Groups using solar to end Energy poverty

General Electric (GE), on many occasions, has been my reference and source of information on energy matters. It is due to GE's commitment to build innovative solutions to today’s environmental challenges that brings me to share with you this article on cheap and affordable solar power.

Today, it is estimated that there are approximately 1.3 billion people who live without regular access to energy. People are forced to use fuels that pollute and cause respiratory illnesses, like kerosene and biomass, and spend long hours time collecting fuel.

Ending energy poverty is about more than helping people see at night — it’s about economic opportunity, safer and healthier communities, better educational opportunities and connection to the rest of the world. Below is a look at a handful of the many organizations working to end energy poverty using solar power.


1 LITER OF LIGHT

Isang Litrong Liwanag, or 1 Liter of Light, uses the Solar Bottle Light design – a cheap, sustainable, light bulb alternative – to light buildings during the day around the world.


Solar bottles ready for use in the Philippines. Photo: Isang Litrong Liwanag


The Solar Bottle Light requires a one-liter plastic bottle, bleach, and a bottle-shaped hole in the roof. The plastic bottle is filled with a mixture of water, and bleach. It’s then capped, sealed, and placed in the hole halfway below and halfway above the roof. The water inside the bottle refracts and disperses sunlight, giving the bottle the power of a 50-60 watt light bulb.

The design was pioneered by Alfredo Moser, a mechanic in Sao Paulo, who needed to light his workshop when his neighborhood suffered a long cut in electricity in 2002. Since then, students from MIT have worked with 1 Liter of Light to help develop the design further.


SOLAR ELECTRIC LIGHT FUND (SELF)

SELF, a DC-based non-profit, grew out of an organization that sought to illuminate rural India in the 1990s. Since then, the company has installed solar electric systems in places including Benin, Lesotho, Burundi, Kenya and, most notably, Haiti, where the organization created systems that power 11 health care facilities and a hospital run by the NGO Partners In Health.



Solar Electric Light Fund project in Benin, West Africa. Photo: Changemakers


Through this installation, the organization has improved the quality of medical services for over 170,000 Haitians by powering lights, microscopes, vaccine refrigerators and other lifesaving equipment with renewable energy.


SOLAR SISTER

Solar Sister is a social enterprise committed to eradicating energy poverty by encouraging economic development. Solar Sister gives women entrepreneurs the opportunity to grow a sustainable business selling solar products. The organization reinvests any profits back into their network of entrepreneurs, creating a sustainable business with a positive impact on the environment and the community.


WE CARE SOLAR

WE CARE Solar is a non-profit organization that manufactures the Solar Suitcase, a portable solar system, for health clinics.


Medical Solar Suitcase. Photo: We Care Solar


The Solar Suitcase is easy to use and is designed to be used at night when emergency health care is needed. The suitcase comes with highly efficient medical lighting, as well as power for mobile communication, computers, and medical devices. To date, the design has been used in almost 200 clinics in 17 countries, including Haiti, Mexico, Nicaragua, and South Sudan.


PROJECT SURYA

To replace the highly polluting cooking stoves traditionally used in rural areas, Project Surya invented a stove that requires less than half as much biomass fuel, and emits less greenhouse gases. The improved stove has a solar lamp and a solar-panel powered fan to improve combustion. The project will help divert black carbon, methane, and ozone from the environment. In addition, because exposure to traditional biomass fuel can cause upper respiratory complications, low birth weight, eye diseases, and even blindness, replacing the stoves with clean technology is expected to improve public health.

Ferguson and Mancini

Manchester City won the English Premier League in 2011/12 season.