Friday, 22 January 2016

Micro Power, Mega Empowerment

If you've been reading my blog, I recommend you watch this recently created video on micro-hydro projects in Malaysia. Worth checking out, it deserves its own post!



"This short video on micro hydro power has been screened at the 2015 Paris Climate Conference. Micro Power, Mega Empowerment demonstrates how the Orang Asal people of Malaysia have been advancing local climate resilience, piloting pico and micro-hydro projects across the country to bring electricity to remote areas while successfully protecting watershed areas."

Sunday, 1 November 2015

Sarawak!

We flew into Miri, the second largest city in Sarawak. It was only myself and Luno travelling by flight, the rest of the Tonibung team were travelling by truck. Luno, who is the youngest of Tonibung's trainees speaks very little English and has only been on an aircraft once before.

The two other Tonibung engineers met us at the airport, Patrick, the project manager and James, the welding muscle machine. The plan was to spend 10 days in Sarawak and complete two different projects. However due to delays we stayed for 14 days.

The first project we focused on was a micro-hydro for a small kampung known as Long Kerangan. The second project was a solar panel installation for a kampung called Tanjung Tepalit. Both villages are in very remote locations with little or no access to electricity. Villagers with access are relying heavily on diesel generators for electricity which are very expensive, and as I found, not great for getting a good nights sleep!

Deforestation, Palm Oil Plantations and Mega-Dams


Once the four of us were together, we set off on the six hour off road drive to Long Kerangan. The village was accessible by road due to the timber industry which has created an extensive amount of roads deep into Sarawak. The drive was unforgettable, six hours bouncing and rattling about inside the truck, with reckless timber trucks dangerously overtaking, there were no rules of the road.

What particularly hit me during this drive was the extensive amount of deforestation and palm oil plantations. For the first four hours I saw nothing but palm oil trees, following the palm oil tress there was an extensive amount of deforestation. It was unbelievable the scale of the destruction the timber companies have brought to Sarawak. Malaysia is the second largest producer of palm oil (after Indonesia) and now I can see why.


      
Deforestation

Palm Oil Plantation

Baram Dam Blockade Sites

Just like in Sabah, Mega-Dams are a big issue in Sarawak. There are currently proposals to construct a mega-dam on the Baram River in Sarawak. Construction of the dam would destroy thousands of hectares of land and displace about 20,000 indigenous people. During the drive to Long Kerangan, we stopped off at two blockades, located at the entrances to the Baram dam proposed construction site. The blockades are essentially small communities that have been established in order to protest against and disrupt construction of the mega-dam. The people living in these blockades are truly determined to halt the construction of the dam, their homes and lives  depend on it.

The second village I visited while in Sarawak, Tanjung Tepalit lies next to the Baram River. With the construction of the Baram mega-dam, the village of Tanjung Tepalit will be wiped off the map, the village will be under water. What is even more concerning is that the Baram dam is 1 of 12 mega-dams planned for construction in Sarawak. 

Long Kerangan


The indigenous people in the area around Long Kerangan are known as the Penan people. They speak their own indigenous language and are known for living in Long Houses.

The majority of my time in Sarawak was spent living with the villagers in Long Kerangan. The villagers seemed like one big family. The kids were running about wild, always screaming and shouting. There were mangy dogs roaming around, always scavenging for food. Every man in the village owned a scooter motorcycle which they relied on heavily - occasionally seeing a scooter speeding down the road with a wild boar strapped to the back. . When I arrived everyone particularly the kids were intrigued and surprised to see a white, western guy with the Tonibung team.

The Village of Long Kerangan

                                               Kitchen                                                               Sleeping Area

Toilet and shower area

The micro-hydro being installed is a three-phase system providing 10kW of power to about 120 people. The Tonibung guys had been back and forth to the village for the past 10 months providing the equipment, materials and support for the village to install the micro-hydro. This was to be the final visit to Long Kerangan for Tonibung, our goal was to finish the installation and perform the commissioning of the system. There was a bit of pressure on us for everything to be up an running as the project funders were hoping to hold a "Turning On Ceremony" 13 days later. I was feeling the pressure myself as I was specifically asked to perform the commissioning of the ELC (Electronic Load Controller).

Long Kerangan Micro-Hydro Turbine and Generator

                                     Fixing broken Penstock                                                Micro-Hydro Intake

                                        Building Penstock Support Frames                                       Power House


We spent most of the first 4 days finishing off the electrical wiring and working with the villagers to build support frames for the Penstock. On the day of turning on the micro-hydro for the first time, we carried out some final checks on the turbine. We flushed the penstock to remove stones and other debris; you can see the chaos this caused in the picture below; flooding the powerhouse and nearly soaking the generator. By the time it came to power up the micro-hydro for the first time, it was getting late and very dark. The villagers had heard the news that we were going to try the system out for the first time and they wanted to be watch. With very little visibility in the power house, villagers started to pile in, kids no older than five jumping about the power house, carrying on next to the turbine. The villagers watched us in anticipation as we set up the micro-hydro. We opened the mains valves allowing water to flow gradually into the turbine to increase the rotational speed. As the speed of the turbine increased, the lights in the power house house began to flick on and everyone cheered. I kept my eyes fixed on the volt meter and frequency meter. We increased the speed of the turbine until the frequency was approximately 50Hz, from there I could alter the AVR (Automatic Voltage Regulator) on the generator to tune the voltage to the desired 220V. When the voltage and frequency was stable, the ELC instrumentation indicated that the conditions were correct and stable. I flicked the switches to direct power to the village load. Everything looked good. And just as I was about to give the thumbs up, something tripped. The speed of the turbine increased rapidly and the voltage output shot up. Over the noise of the turbine I shouted to the other guys to close the main valve and I turned off the power to the village and the power house plunged into darkness.

The rest of the evening was spent troubleshooting the ELC. Things were looking bleak. When attempting to restart the micro-hydro, the output from the ELC was very confusing.  In the darkness with a hand torch I carried out various electrical checks. It could hear what seemed like entire village behind me watching in anticipation. I was feeling the pressure. The mosquito's and sand flies weren't helping, who having a great time on my legs and arms.

I suspected something had became faulty on the ELC and tripped the system causing the ballast load to turn off. This would explain the turbine over-speed that occurred. Plus, which I haven't mentioned, the main circuit board on the ELC has been chewed by rats. During the commissioning checks, I didn't think the rat's had caused any significant damage, but maybe they had?  Unfortunately, we had no time to perform further troubleshooting as we had to travel to meet up with another Tonibung team at our next project location - Tanjung Tepalit, scroll down for more on the Tanjung Tepalit project.

 
                Flushing the Penstock                                           Myself and Luno                          Electronic Load Controller - ON

Based on the little troubleshooting performed and the chewed state of the ELC, we decided the likely cause of the fault was with the ELC. During our time in Tanjung Tepalit we made the decision to send out a new ELC from Sabah. After 3 nights in Tanjung Tepalit, we made the 9 hour journey to the capital of Sarawak, Miri, where we would collect the delivered new ELC. The following day we travelled all the way back to Long Kerangan, again bouncing and rattling in the truck for 6 hours. When we arrived at Long Kerangan, we quickly got straight to work replacing the installed ELC with the new one. During start up of the micro-hydro with the new ELC, we felt positive the problems would be resolved. Frustratingly, the same problems were occurring. It was hellish, incredibly frustrating and stressful, especially after all that travel and getting the new ELC sent over. 

The only positive was that I could rule out the ELC as the problem. I now suspected the generator was at fault. After inspection of the generator and its three-phase output I came to the  conclusion that a fault had a occurred on the internal windings of the generator. This was supported by the fact the generator seemed to be overheating. This failure was likely caused by vibration during transportation and then ultimately failing during the first start-up.

The biggest pain was that we now needed to send across a new generator from Sabah! On the same day we arrived in Long Kerangan to install the new ELC, we decided to return back to Miri. Our total travel in the day was just over 12 hours driving on off-road conditions. Our driver Patrick was solid. We stayed a couple of nights in Miri until the generator arrived.We then travelled back out to Long Kerangan for the third time. The new generator had to work. If not, the micro-hydro would not be ready for the "Turning On Ceremony" the following day. The pressure was on,

When we arrived, we started dismantling the installed generator and replacing it with the new. Once installed, we went through the same process to start up the micro-hydro. This time only a few of the villagers had turned up to watch. The voltage and frequency output from the generator ramped up and I adjusted the AVR to bring the voltage and frequency up to the desired 240V at 50Hz. With the voltage and frequency stable, I switched on the main village loads form the ELC control panel. Finally, everything was looking good. Stable electricity was being provided to Long Kerangan.

Finally Operational with the new generator!

The following day was the big day, the "Turning On Ceremony". To all the villagers it was a very big deal. The project funders and a Malaysian politician was travelling all the way from Kuala Lumpur to be present for the event. The villagers had literally rolled out red matting, brought out fancy chairs and spent a lot of time cleaning just before arrival.

                                         Meeting Politicians                               Tonibung Project Manager - Patrick




Well chuffed after receiving a thank you rattan bag at the ceremony

When the politician and the funders arrived, there was lots of introductions, photographs being taken and speeches. I think the politician was pretty surprised to see me at the village, fortunately his English was good enough to have a brief conversation. But to be honest, for most of the ceremony I didn't really know what was going on. All the speeches were in Malay! The highlight was being awarded a small rattan bag that was hand made in the village.

Celebration Meal - Wild Boar

The Long Kerangan micro-hydro project was even covered by the local media. Check it out....
Long Kerangan in the Media


Tanjung Tepalit

Tanjung Tepalit and the solar panel installation!

To be completed soon!


Tanjung Tepalit - Solar Panel installation



Building the Battery Support Frame

Batteries, Inverters and Distribution Box


Friday, 9 October 2015

Let there be Light!

In early October I was asked to carry out repairs on a faulty AVR (Automatic Voltage Regulator). The AVR is being used in the village Kg. Pongobonon which I visited in September. The micro-hydro currently installed there has been out of action for several months due to this AVR fault. 

The AVR being used is a strange device that's been developed in China. Its essentially functions like a light dimmer, its dividing the power between a main load and ballast load. It doesn't function like an typical AVR which regulates voltage by through generator excitation and it's really not ideal for the micro-hydro but it is a cheap temporary solution. When I opened the device, it seemed like it was originally designed for something else...the china manufacturer has performed some dodgy modifications with some poor soldering to turn it into what it is now. Thankfully only a few components seemed faulty, which were easy enough to replace. I also managed to improve the design, tuning can now be performed by hand using a rotary switch rather than having to use a screwdriver.

In Action, repairing the Kg Pongobonon Micro-Hydro AVR

AVR after repair

The trip into the field to install the repaired AVR was going to be different from before. This time there was to be a "micro-hydro turning-on ceremony" and politicians from the Malaysian government's opposition party will be joining us! This put pressure on me to get the AVR working! If the repairs don't work, the micro hydro will not turn on!

On the day of the trip, about 15 of us packed in three trucks and headed into Ula Papar (name given to the rainforest and community area). The convoy headed into forest on the same road I nearly lost my ear, again I was in the back of the truck holding on for dear life as we bound about through rivers and over uneven road.


The pre-departure loading of trucks

On Route to Kg, Pongobonon


Stopped off at the Kg. Tiku hanging bridge and a Ulu Papar paddy field

The roads to Kg. Pongobonon are horrific, so we had brought 
some cement with us to help villagers improve the road surface.

When we arrived at Kg. Pongobonon I started to feel a bit anxious. Asking myself "Shit, what if this AVR still doesn't work? Everyone will have travelled all this way and the micro-hydro won't be operational!". As soon as we arrived, we went straight to the powerhouse to try out the repaired AVR. We installed the AVR and opened the main valve to allow the water to flow into the turbine. The process of getting a constant flow of water into the turbine took some time. Air bubbles in the pipes caused turbulence in the flow which meant we could turn on the power from the generator the village. This was a period of some serious nail biting, hoping that this AVR would work! Eventually we started to get a consistent flow of water into the turbine, the voltage ramped up to the expected 220V and we could switch on the village loads. I quickly jumped in with the multi-meter to take some measurements, the AVR should be diverting power to the ballast load. Thankfully, the voltage and frequency seemed stable, some small tuning adjustments brought the voltage and frequency to the desired 220V and 50Hz. As expected the AVR was sending a fraction of the power to the ballast. This was a big relief, the AVR seemed to be working ok! The village of Pongobonon was now being supplied with stable electricity!

Kg. Pongobonon Micro-Hydro (3.3kW)

Installation of the repaired AVR

The Power House light turns on!

For me this was a great feeling, it was a fairly simple fix to the AVR, but it had big consequences for this village. There was a lot of high-fives and hand shakes while at the power house. But it was satisfying to head down to the village and see that the lights were on and music was playing.

Let there be light!

Now that we knew that the micro-hydro is operating ok, the ceremony with the politician could begin with him, his crew of photographers, the village chief and of course Tonibung. The politician gave his speech, and flicked the switch to light up the village. The experience was later covered in Malaysian Media, where I was captured in a few pictures... Kg Pongobonon: Malaysia media coverage

"Turning On Ceremony"

Celebrations following the ceremony


Sunday, 27 September 2015

Into the Forest

I have officially been chewed and spat out by the Sabah rainforest. Over the past seven days I have trekked to three different rural villages and I can honestly say, these villages are very remote with no road accessibility and difficult walking terrain.

Our mini-bus which collected us from CREATE drove for about 2 hours into the heart of Sabah, The bus struggled to cope as we climbed constantly up valley walls. The drop off location just seemed like a random point at the side of the road. From the road side, the plan was to walk deep into the forest towards the first village - Kampung Longkogungan.

The "Sabah Parks" boundary -  entering protected rainforest areas.


The recommended footwear for the forest is the Adidas Kampung (nothing to do with Adidas), which is basically a rubber shoe which is ideal for wading through water and mud. Unfortunately there is no foot support, so my feet and toes were twisted, stubbed and bruised. 

After three hours of walking, scrambling and wading across waist deep rivers we made it to Kampung Longkogungan. The village of Kg. Longkogungan currently has no electricity but Tonibung are working with the villagers to install a micro-hydro scheme. The house we were staying in was very basic with the wooden floor as a bed. I think the children in the family enjoyed my stay, a lot of fun was had shooting me with a toy gun. When it got dark, a car battery was used to provide electricity to a single light bulb in the house - which gradually got dimmer as the night went on. I was also introduced to rice wine on my first night. Rice wine, which is fermented rice is not very pleasant, especially when there's more rice than liquid. Its kind of like eating/drinking alcoholic porridge or rice pudding.



We only spent one night and a day at Kg. Longkogungan. The following day we helped the villagers clear a path through the forest for their micro-hydro piping (penstock). In the evening we set off to the next village down the river, Kampung Kalangaan. It was only an hour trek to Kg. Kalangaan, but I managed to get about four leeches and I didn't notice until I arrived at the village. Once scraping them off, my feet were a bleeding mess! 

Kg. Kalangaan is another village without electricity, the micro-hydro project is on going with the dam and forebay complete. We stayed two nights in Kalangaan and it was on my first night I was introduced to tapai. Tapai is another wine like drink which is made from the root or bulb of a plant found in Borneo. It can be quite strong and the villagers love to drink it. I found the taste to be not too bad, some mixtures of it can taste like vinegar though! Everyone consumed a fair amount of tapai while in Kalangaan, the guitar was passed around and Dusan songs were played well into both nights.

Breakfast, lunch and dinner always consisted of rice and the most recent catch. The first night we ate every edible part of a pig, including a soup with the skull bobbing about in the pot. On the second night, I had what I assumed as the time was more pig, this time grilled. With the dim light from another battery power light it's quite difficult to see what exactly your eating. I did eventually realise it wasn't pig, it was the head of a small grilled bat. But to be honest, it was actually quite nice.




During the day at Kalangaan, we worked on reinforcing the dam for the micro-hydro. On the way back we ended up going spear fishing for eels. Apparently the eels hide under rocks during the day. The villagers dive into the river and dig under the rocks and shoot at them with a home-made spear gun. I gave it a few attempts but unfortunately the eels are not easy to find!

On day four in the forest, we left Kg. Kalangaan and headed to Kampung Pongobonon. On the way there we stopped to catch some lunch. The spear guns and fishing net were back out. I was determined to catch a fish using the net, I haven't quite got the technique yet, so I didn't have any luck. I'm making it an objective to catch a fish using the net and spear gun by the end of the six months!

A big blow was that I was so focused on getting a fish I didn't realise I was getting some really bad sunburn on my shoulders. Trekking with a rucksack and sunburnt shoulders is torture.



The third village we visited was Kampung Pongobonon. Pongobonon does have an installed micro-hydro, but unfortunately the AVR on the generator is broken and needs replaced.

The house we stayed in for three nights can be seen below. You can't really see from the picture, but there is a monkey in a cage outside the door. I asked why the monkey was in the cage and from the explanation it wasn't clear if it is a pet or they are fattening it up to cook and eat. It thankfully wasn't for dinner while I was there anyway!


A family of 10 live in the house which mostly consists of young kids. A big irony I found with this village, is that a lot of the kids have smart phones and will very casually sitting playing Clash of Clans or Candy Crush. Without the micro-hydro, the family are using batteries for electricity which is being used to charge up several smart phones and a stereo system. During the day, western drum and bass songs coming form the stereo were a common sound coming from the house. At night, oil lamps and torches are the only source of light in the house.

During the 2 days we had at Pongobonon, we spent a lot of the time erecting electricity pylons for other houses. We visited the micro-hydro and inspected the ELC, funnily enough it turns out there is no ELC for the micro-hydro in Pongobonon, load control is purely archived using the AVR. Voltage regulation only, no frequency regulation, which creates limitations on the system.

For lunch, returning back to the house after erecting pylons, I was shocked to see there was a bloody carcass of a wild boar on floor. That wild boar was to be breakfast, lunch and diner for the next few days.





On the final day I was ready to return back to CREATE, my sunburn was bad, I was hungover from all the tapei and my legs were a mess with scratches, leeches and mosquito bites.


From Kg. Pongobonon, the plan was to walk the 2 and half hour trek to Kampung Buayan and then from there get a lift back to CREATE. Once at Kg, Buayan, I expected the trip to be at an end, I thought we could then relax and wait for the truck to pick us up.

This was not the case. The journey from Buayan back to CREATE has enough content to have its own blog post!

The truck to pick us up from Buayan never turned up. News reached us that the truck had gotten stuck about a mile from the village. We walked out with the Buayan villagers to free the vehicle which had partly went off the the side of the road. The axial was caught on the road surface and the truck was close to toppling down a very steep embankment.


A solution for pulling the truck back on to the road was tie rope from the stuck truck to another pulling truck. Unfortunately there was only two short pieces of rope. But someone had the idea of using both pieces of rope and tying them together with a 4-way car wheel wrench. When this was attempted the truck on the road pulled, the rope snapped and acted like a slingshot hurling the 4-way spanner with serious force into the bumper of the stuck truck. Everyone dove to the ground when it happened, I just about shit myself. If the wrench had hit someone it would probable have killed them. In picture (a) below you can see the two pieces of rope and the 4-way wrench. After going back to Buayan, collecting longer and more robust rope, we tried the same again (without the wrench!) and managed to free the truck.
(a)                                   (b)

With all of us piled in the back of the truck, we set off back to CREATE. The conditions of the roads are horrendous, with incredibly steep slopes to tackle, boulders and loose rock drive over. Riding in the back of the tuck is a case of holding tight or you'll be flung out! Picture (b) is the only clear shot I've got from the back of the truck.

On the way back we got stuck several times at very steep slopes and muddy patches on the road. In the occasion below, we were stuck for about 2 hours, resorting to trying to pull the truck up the hill ourselves with rope.



I think one of the most memorable and talked about events during the trip happened in the last hour. We were still piled in the back of the truck, standing up and holding on for dear life. I was concentrating on holding on and moving my legs with the suspension of the truck. I heard a shout from the guys behind me to look out and I quickly looked up and saw a barbed rattan vine hanging low at head height. In the split second I moved my face away but not my head. The barbed rattan caught my eat and pulled as we drove past it. I felt the pain, but it didn't feel like it was too serious. We continued on driving for a few minutes until I felt the blood down the side of my face and then the blood was down my arm, on the top the truck roof and falling everywhere. The other guys noticed and started shouting for the truck to stop. I was given a t-shirt to put over my ear and one of the guys gave me a chewed up leaf which is considered traditional medicine to help stop the bleeding.

For the last hour I sat in the front of the truck holding my bleeding ear. From the car mirrors I was able to see the damage done and it looked pretty bad. I'll save you all a picture of what it looked like. Thankfully I still have my ear and the barb didn't rip a hole in my ear. But it did rip on the surface of the ear. I ended up in the local hospital A&E where the wound was cleaned and dressed.



I suppose it gives me a nice scar and a good story to tell!