Tag Archives: Biomass

Biomass To Electricity: A Fancy Way To Talk About Firewood

Richard Ha writes:

At last week’s PUC meeting in Hilo regarding the Hu Honua Bioenergy project slated for Pepe‘ekeo, few members of the public objected to the project.

The hearing was required because HELCO is proposing to relocate a switching station. The proposed site is on a 13-acre parcel that June and I own; they want to buy half of the property. We notified the community associations that this was taking place several months ago, and, as a consequence, I do not plan on submitting personal testimony to the PUC.

At the PUC meeting, the Kamehameha Schools (KS) representative talked about forest products as an industry. What is more practical and proven than using firewood to boil water? This is what we need; it’s practical.

This Big Island Video News video covers the meeting, and here are some things to especially note:

At the 3:00 minute mark, the KS representative expresses how this project could be the catalyst around which a forest industry could grow. Native trees, especially, take a longer time, and so a combination of native and non-native trees could make the forest industry viable.

As a scalable feedstock, trees work on the Hamakua Coast. They’ve been growing for 20 years. KS is crucial to making this big picture work.

Of course we won’t overdo it. Everyone knows what happened to Easter Island. We are talking about balance and proportion.

Early Hawaiians understood this; it’s why they sometimes had a kapu on fishing – in order to prevent overtaxing the resource.

At 6:50, David Tarnas presents Robert Rapier’s testimony. Robert was in Austin at the time, where he was lead speaker on the second day of the Association for the Study of Peak Oil conference. Giorgio Calderone and Jason Jeremiah, both from KS, and Noe Kalipi and I also attended that conference.

Robert lives in Waimea and we would love to claim him, but he is more of a national/international representative. He participates in the HECO Integrated Resource Planning process.

His testimony was that the Big Island needs a firm power alternative to oil, and that biomass and geothermal fit that description. His testimony is that the most efficient way to turn biomass (firewood) to electricity is to burn it.

At the 8:30 mark, Elaine Munro talks about the conflict between HECO’s fiduciary duty to the shareholders and the rate payer. She talks about the cost of capital and how the present model results in unnecessary higher costs to the rate payer. We all know that the model is broken.

Lynn Nakim, at 11:00 minutes, talks about environmental effects. Lynn is a neighbor of ours at Hamakua Springs. She uses solar panels for power.

At the 16:00 minute mark, a worker expresses his opinion. The money stays in Hawai‘i and provides jobs for Big Islanders, instead of being sent to foreign countries to pay foreign workers.

Making firm power electricity is mostly about making steam to turn a turbine. Burning wood to make steam is proven technology and will be cheaper and more stable than oil price in the long run.

From Big Island Video News:

HILO, Hawaii: The public expressed widespread support
for the Hu Honua Bioenergy project at Wednesday night’s Public Utilities Commission hearing in Hilo.

Hu Honua Bioenergy LLC is converting the former Hilo Coast
Power Company plant at Pepeekeo into a modern biomass energy facility. The 24-megawatt operation is expected to meet about 10 percent of the island’s electrical needs and about enough for 14,000 homes, once in operation.

Hu Honua has negotiated a power purchase agreement with
Hawaii Electric Light Company, which is subject to approval by the PUC. 
However, the hearing was triggered by the need to install transmission lines for the project, as explained by this HELCO engineer.

Nevertheless, the hearing created an opportunity for the public to share its views on the entire project.

Speaking in favor of the proposal, the growing forestry industry on the Hamakua Coast, where thousands of acres on the Hamakua Coast are occupied by Eucalyptus trees, ready for harvest….

Read the rest

What Is Our Energy Goal?

The world has changed fundamentally in the last 10 years. The price of oil, which had been low-cost energy for as long as any of us can remember, doubled and then doubled again.

The cost of oil is out of our control; it’s determined by the demand from China, India and other developing countries. The U.S. is using a million barrels per day less than it used to, but the developing countries are now using 7 million barrels per day more.

What should be our overall goal? Net Energy analysis can help us make sense of things. That is the Energy Return on Investment (EROI). It’s the net energy left over from the energy spent to obtain it. Subtract, from that energy, the energy it takes to get food and that gives you your lifestyle. That is why energy and agriculture are inextricably tied together. EROI analysis can help us understand the basic elements at work.

The ancient Hawaiians, without metal ores, were able to manage a positive energy balance such that their civilization flourished. They did this by maximizing energy – sun, wind and waves. And they were extra observant of the environment. They had to be, because they did not have the tools available that others had.

They were good at what counts. They were survivors.

Now it’s our turn.

There is a limit as to how much solar and wind energy we can put into the grid as it’s presently configured. And we have not been able to demonstrate biofuel on an industrial scale. Biomass is limited by the supply of trees and fossil fuel inputs. Ocean energy and energy storage could be game changers in the future. But we are not there yet.

Our task is to figure out how we will achieve a positive energy balance for Hawaii in a future of rising oil price. Globalization has made the world very complicated. And it’s easy to confuse capital and technology for energy. A long time ago, a friend of mine from the mountains of Tennessee told me about a saying they had back home. He said, “You can’t squeeze blood out of a turnip.”

But we can get affordable geothermal energy – a proven technology – out of the ground.

A Visit to Kauai Island Utility Cooperative

I was invited to visit the Kauai Island Utility Cooperative (KIUC) by its Board Chairman Phil Tacbian. He and Dennis Esaki, who is Vice President of the founding Board, gave me an orientation.

Kauai Island Utility Cooperative (KIUC) is a not-for-profit generation, transmission and distribution cooperative owned and controlled by the members it serves. Headquartered in Lihue, Kauai, Hawaii, the cooperative currently serves more than 32,000 electric accounts throughout Kauai. Committed to reinventing how Kauai is powered, KIUC is aggressively pursuing diversification of its energy portfolio to include a growing percentage of hydropower, photovoltaic, bio-fuel, and biomass.

It was my first visit and I had a very favorable impression of their corporate culture. This is a model that aligns the interest of the people with the interest of the utility. It’s evident that the employees are proud of their organization. They are coming up on their 10th anniversary celebration.

I toured the Kapaia Power Station. It includes a General Electric LM2500PH steam-injected combustion turbine. The unit can burn either naphtha or No. 2 fuel oil. Steam is injected at approximately 10,000#/hr for NOx control and 56,000#/hr for power augmentation. It appeared to me to be unique in its use of steam injection to enhance power generation. A small part of the CO2 was transported next door to an open raceway algae farm.

Back in 2002, KIUC agreed to pay Citizens Communications of Connecticut $215 million for Kauai Electric’s assets. The National Rural Utilities Cooperative Finance Corporation (CFC) had approved loans to KIUC for up to the total purchase price, plus they had a $25 million secured line of credit and a $60 million disaster recovery line of credit, which was from FEMA following Hurricane Iniki, which had happened 10 years earlier.

The combination of having a very willing seller, plus a line of credit from FEMA, was very helpful.

It did not appear there was much funding for infrastructure upgrades.

It’s clear to me that it took countless hours of volunteer time, plus careful analysis and implementation, to bring KIUC to this place it is at 10 years later. It was certainly not easy then, nor now, and the work continues. I was very impressed.

Peak Oil in the Rear View Mirror; Geothermal in the Headlights

Last week Wally Ishibashi and I gave a presentation to the Hawaii County Council. There’s a video of our talk up now on local channel 52, where it will repeat from time to time.

Wally spoke about the Geothermal Working Group Report we gave to the legislature. I talked about “Peak Oil in the Rear View Mirror,” from the perspective of having been the only person from Hawai‘i to attend four Peak Oil conferences.

On Monday, I gave an essay presentation to the Social Science Association of Hawai‘i, whose members are prominent members of our community. This organization has been in operation since the 1800s.

From Kamehameha School Archives, 1886 January 21 -1892. Bishop becomes a member of the Social Science Association of Honolulu. All Bishop Estate Trustees and the first principal of Kamehameha Schools, William B. Oleson, are members. Members meet monthly to discuss topics concerning the well-being of society.

And yesterday I gave a “Peak Oil in the Rear View Mirror” presentation to the Office of Hawaiian Affairs’ Beneficiary Advocacy and Empowerment (BAE) Committee.

I was interested to note that the Hawaii County Council, the Social Science Association of Hawaii and OHA’s BAE committee were all overwhelmingly in favor of stabilizing electricity rates. It was clear to everyone that we in Hawai‘i are extremely vulnerable, and also so lucky to have a game-changing alternative.

Screen shot 2012-02-09 at 11.24.53 PM

Hawaii is the world’s most remote population in excess of 500,000 people. Almost everybody and everything that comes to Hawaii comes via ship or airplane using oil as fuel. As isolated as we are, we are vulnerable to the changing nature of oil supply and demand. There is trouble in paradise.

I explained how it was that a banana farmer came to be standing in front of them giving a presentation about energy.

My story started way back when I was 10 years old. I remember Pop talking about impossible situations, and suddenly he would pound the dinner table with his fist, the dishes would bounce, and he would point in the air. “Not no can, CAN!” And at other times: “Get thousand reasons why no can, I only looking for the one reason why can.” He would say, “For every problem, find three solutions …. And then find one more just in case.”

Once he said, “Earthquake coming. You can hear it and see the trees whipping back and forth and see the ground rippling.” He gave a hint: “If you are in the air you won’t fall down. What you going do?”

I said, “Jump in the air.” He said yes, and do a half turn. I asked why.

He said, “Because after a couple of jumps you see everything.”

Lots of lessons in what he told a 10-year-old kid. Nothing is impossible. Plan in advance.

I made my way through high school and applied to the University of Hawai‘i. But I came from small town Hilo, and there were too many places to go, people to see and beers to drink. I flunked out of school.

It was during the Vietnam era, and if you flunked out of school you were drafted. Making the best of the situation, I applied for Officers Candidate School and volunteered to go to Vietnam.

I found myself in the jungle with a hundred other soldiers. It was apparent that if we got in trouble, no one was close enough to help us. The unwritten rule we lived by was that “We all come back, or no one comes back.” I liked that idea and have kept it ever since.

I returned to Hawai‘i and reentered the UH. I wanted to go into business, so I majored in accounting in order to keep score.

Pop asked if I would come and run the family chicken farm. I did, and soon realized that there would be an opportunity growing bananas. Chiquita was growing the banana market and we felt that we could gain significant market share if we moved fast. But, having no money, we needed to be resourceful. So we traded chicken manure for banana keiki.

A little bit at a time we expanded, and after a bunch of transformations, we became the largest banana farm in the state. Then about 20 years ago we purchased 600 acres at Pepe‘ekeo and we got into hydroponic tomato farming.

Approximately seven years ago, we noticed that our farm input costs were rising steadily, and I found out that it was related to rising oil prices. So in 2007, I went to the Association for the Study of Peak Oil (ASPO) conference to learn about oil. What I learned at that first ASPO conference was that the world had been using more oil than it was finding, and that it had been going on for a while.

Screen shot 2012-02-09 at 11.25.05 PM

In addition to using more than we were finding, it was also apparent that the natural decline rate of the world’s cumulative oil fields needed to be accounted for. The International Energy Association (IEA) estimates that this decline rate is around 5 percent annually. This amounts to a natural decline of 4 million gallons per year. We will need to find the equivalent of a Saudi Arabia every two and a half years. Clearly we are not doing that, and will never do that.

At the second ASPO conference I attended, in Denver in 2009, I learned that the concept of Energy Return on Investment (EROI) was becoming more and more relevant. It takes energy to get energy, and the net energy that results is what is available for society to use. In the 1930s, getting 100 barrels of oil out of the ground took the energy in one of those barrels. In 1970, it was 30 to 1 and now it is close to 10-1.

Tar sands is approximately 4 to 1, while some biofuels are a little more than 1 to 1. And, frequently, fossil fuel is used to make biofuels. That causes the break-even point to “recede into the horizon.”

But the EROI for geothermal appears to be around 10 to 1. And its cost won’t rise for 500,000 to a million years.

Screen shot 2012-02-09 at 11.25.25 PM

After the oil shocks of the early 1970s, the cost of oil per barrel was around the mid-$20 per barrel. That lasted for nearly 30 years.

In this graph above, one can see that oil would have cost around $35 per barrel in 2011, had inflation been the only influencer of oil price.

The cost of oil spiked in 2008, contributing to or causing the worst recession in history. In fact the last 10 recessions were related to spiking oil prices.

From late 2008 until mid-2009, the price of oil dropped as demand collapsed for a short time. But demand picked back up and the price of oil has climbed back to $100 per barrel – in a recession.

It is important to note that we in the U.S. use 26 barrels of oil per person per year, while in China each person uses only two barrels per person per year. Whereas we go into a recession when oil costs more than $100 per barrel, China keeps on growing. This is a zero sum game as we move per capita oil usage toward each other.

What might the consequences be as China and the U.S. meet toward the middle at 13 barrels of oil per person?

People are having a tough time right now due to rising energy-related costs. Two thirds of the economy is made up of consumer spending. If the consumer does not have money, he/she cannot spend.

Screen shot 2012-02-09 at 11.25.37 PM

How will we keep the lights on and avoid flickering lights? Eighty percent of electricity needs to be firm, steady power. The other 20 percent can be unsteady and intermittent, like wind and solar. So the largest amount of electricity produced needs to have firm power characteristics.

There are four main alternatives being discussed today.

  1. Oil is worrisome because oil prices will likely keep on rising.
  2. Biofuels is expensive and largely an unproven technology. The EPA changed its estimation of cellulosic biofuel in 2011 from 250 million gallons to just 6.5 million gallons because cellulosic biofuels were not ready for commercial production.
  3. Biomass or firewood is a proven technology. Burn firewood, boil water, make steam, turn a generator – that’s a proven technology. It is limited because you cannot keep on burning the trees; they must be replenished. And it’s not clear where that equilibrium point is. There are also other environmental issues.
  4. That leaves geothermal.

The chain of islands that have drifted over the Pacific hotspot extends all the way up to Alaska. This has been going on for over 85 million years.

It’s estimated that the Big Island, which is over the hot spot now, will be sitting atop that hot spot for 500,000 to a million more years.

Of all the various base power solutions, geothermal is most affordable. Right now it costs around 10 cents per Kilowatt hour to produce electricity using geothermal, while oil at $100 per barrel costs twice as much. The cost of geothermal-produced electricity will stay steady. Allowing for inflation, geothermal generated electricity will stay stable for 500,000 to a million years, while oil price will rise to unprecedented heights in the near future.

Geothermal is proven technology. The first plant in Italy is 100 years old. Iceland uses cheap hydro and geothermal. It uses cheap electricity to convert bauxite to aluminum and sells it competitively on the world market. With the resulting hard currency, it buys the food that it cannot grow.

Iceland is more energy- and food-secure than we are in Hawai‘i. Ormoc City in the Philippines, which has a population similar to the Big Island, produces 700MW of electricity with its geothermal resource, compared to our 30 MW. Ormoc City shares the excess with other islands in the Philippines.

Geothermal is environmentally benign. It is a closed loop system and has a small footprint. A 30 MW geothermal plant sits on maybe 100 acres, while a similarly sized biomass project might take up 10,000 acres.

In addition, geothermal can produce cheap H2 hydrogen when people are sleeping. It is done by running an electric current through water releasing hydrogen and oxygen gas. One can make NH3 ammonia by taking the hydrogen and combining it with nitrogen in the air. That ammonia can be used for agriculture. NH3 ammonia is a better carrier of hydrogen that H2 hydrogen.

The extra H atom makes NH3 one third more energy-dense than H2 hydrogen. It can be shipped at ambient temperature in the propane infrastructure.

The use of geothermal can put future generations in a position to win when the use of hydrogen becomes more mature.

If we use geothermal for most of our base power requirements for electric generation, as oil prices rise we will become more competitive to the rest of the world. And our standard of living will rise relative to the rest of the world.

Then, because two thirds of GDP is made up of consumer spending, our people will have jobs and we will not have to export our most precious of all our resources – our children.

In addition, people will have discretionary income and will be able to support local farmers, and that will help us ensure food security.

Still in Iceland, Still in Shorts

We landed in Iceland, where the temperature is mild – it’s in the mid 50s. My shorts and a jacket are working very well, so far. I’m going to stay in shorts as long as it makes sense.

We took a cab into Reykjavik. My first observations were that there are hardly any trees, and that the lava base is very familiar to those of us who live on the east side of the Big Island.

My most significant observation was that there are no overhead electric lines. Everything is underground.

We passed an aluminum manufacturing company on our way in.

Aluminum manufacturing plant

I expected it to be belching black smoke, but there wasn’t even a wisp of steam. It looked very benign. We have to visit those folks.

 

Hilton

We checked into the hotel. Here’s the view from the hotel.

View from hotel

Then we got a car and went down to the Blue Lagoon. We went in the water and stayed in for maybe two hours; I’m not sure, because I lost track of time. It felt good to relax and get the kinks out after that long trip.

Blue lagoon

It was sea water with a very slight smell of sulfur, and you could open your eyes under water. People had silica mud spread all over their faces for its therapeutic value. I imagine the silica had the consistency of the stuff women put on their faces at a spa. It was very fine and actually felt kind of good. But I bet it would raise all kinds of problem in the geothermal pipes when it hardens and coats the surfaces.

That’s a geothermal well in the background.

Geothermal well in background

There is a live webcam at the Blue Lagoon!

After that, we explored downtown Reykjavik.

Map of downtown Rekjavik

We walked up and down the old city, which has a European feel.

Downtown Reykjavik

It’s very nice and clean, and things were hopping on a Sunday night. We had to wait more than an hour on our third attempt to get a seafood dinner.

David Stefansson (the project manager at Reykjavik Geothermal) and his wife Olga Fedorova (an international trade lawyer and Russian translator) took us for coffee. They are very nice, friendly and fascinating people and we had a wide-ranging conversation. They told us a lot about the history of Iceland and its people in the context of moving from coal to geothermal many years ago. And in that conversation, we learned that the island’s trees had been cut down many years ago for fuel.

Of course, this all makes a lot of sense. It kind of makes me think of what can happen with biomass.

I want to learn more about the leaders who forced the change that has made the Icelandic people one of the most prosperous people in the world (notwithstanding the disaster that the banking industry recently placed upon the people. They apparently confused capital with energy.)

People here reserve Sundays for family time. It’s kind of like the old plantation days in Hawai‘i. Monday was a national holiday and so we went exploring.

One of many waterfalls in Iceland.

And another one. Iceland has incredible amounts of water from the glaciers.

Another waterfall

I happened to be looking through the lens and saw this starting, so I recorded it. This kind of thing happens at random here:

Here’s one of the few products grown in Iceland.

One of few items grown Iceland

Most are brought in from Europe or the Middle East.

Most imported from Europe & Mideast

Stay tuned. Much more to come!

Read Part 1 of my Iceland trip here.