Tag Archives: renewable energy technologies

Praying for Renewable Energy

In the wake of the Fukushima nuclear disaster in 2011, Fukushima prefecture itself pledged to get all its power from renewable sources by 2040.  The hoped-for transformation, however, has been “slow and almost invisible.”…Renewable generation has grown from 10% of the power supply in 2010 to 17% in 2018, almost half of which comes from old hydropower schemes. Most nuclear plants, which provided more than a quarter of the country’s power before the 2011 disaster, have been shut down… But for the most part they have been replaced not by wind turbines and solar panels but by power stations that burn coal and natural gas. The current government wants nuclear plants to provide at least 20% of electricity by 2030. It also wants coal’s share of generation to grow, and has approved plans to build 22 new coal-fired plants over the next five years. The target for renewables, by contrast, is 22-24%, below the current global average, and far lower than in many European countries.

Geography and geology provide part of the answer. Japan is densely populated and mountainous. That makes solar and onshore wind farms costlier to build than in places with lots of flat, empty land. The sea floor drops away more steeply off Japan’s coasts than it does in places where offshore wind has boomed, such as the North Sea. And although geothermal power holds promise, the most suitable sites tend to be in national parks or near privately owned hot springs.

Government policies also help stifle the growth of renewable energy. Since the end of the second world war, privately owned, vertically integrated regional utilities have dominated the electricity market. These ten behemoths provide stable power within their regions, but do little to co-ordinate supply and demand across their borders…The limited transmission between regions makes it even harder than usual to cope with intermittent generation from wind turbines and solar panels. It also reduces competition, which suits the incumbent utilities just fine…Recent reforms have attempted to promote renewables both directly and indirectly…The “feed-in tariff”, obliging utilities to pay a generous fixed price for certain forms of renewable energy—a policy that has prompted investors to pile into solar and wind in other countries. In 2016, the government fully liberalised the retail electricity market. It has also set up new regulatory bodies to promote transmission between regions and to police energy markets. In April 2020 a law came into force that requires utilities to run their generation, transmission and distribution units as separate businesses. These reforms constitute a policy of “radical incrementalism”.

Critics say the steps have been too incremental and not radical enough. Utilities continue to make it time-consuming and costly for new entrants to get access to the grid, imposing rules that are “not fair for newcomers”, according to Takahashi Hiroshi of Tsuru University. Existing power plants are favoured over new facilities, and the share of renewables is limited, on the ground that their intermittency threatens the grid’s stability.

But even if the government is timid, investors can still make a difference…. Several of Japan’s big multinationals have pledged to switch to clean power on a scale and schedule that put the government’s targets to shame. Environmental activism has made banks and businesses wary of investments in coal. Even big utilities have come to see business opportunities in renewables, especially in the government’s imminent auction of sites for offshore wind plants. Two of them, Tohoku Electric Power and Tokyo Electric Power (TEPCO), have announced plans this year to issue “green bonds” to finance renewables projects. In March 2020, TEPCO established a joint venture with Orsted, a Danish oil firm that has become a pioneer in offshore wind. 

Exceprts from Renewable Energy in Japan: No Mill Will, Economist, June 13, 2020

A Cure Worse than the Disease? Biofuels in Planes

The 2019 report by the Rainforest Foundation Norway RFN is called ‘Destination Deforestation’ and reviewed the role of the aviation industry in contributing to the climate crisis, concluding that there’s a high risk that increased use of palm and soy-based biofuel in planes will lead to increased deforestation.

Finland, the world’s largest producers of renewable diesel and the only EU country that gives additional incentives for the use of palm oil products to manufacture biofuel, could spearhead the race towards deforestation, as areas of rainforest in countries like Indonesia or in South America are cleared to plant crops that will later be used to produce the fuel.  RFN says that meeting the aviation industry’s own climate-change targets to reduce emissions could result in 3.2 million hectares of tropical forest lost, an area larger than Belgium.

Researchers at Rainforest Foundation Norway believe the Finnish incentives for (Palm Fatty Acid Distillate) PFAD-based biofuels are likely to contribute to this deforestation, since Finland’s state-owned oil company Neste produces half of the world’s renewable diesel.  “Finland continues to treat the palm oil by-product PFAD as a waste, eligible for additional incentives. In addition, Finland is home to Neste, the world’s largest producer of hydrotreated biodiesel, and uses PFAD as a raw material. Therefore, Finland’s program could contribute to the massive deforestation discussed in our report” he explains.

With Finland left isolated as the only EU country to pay producers to use waste-classified PFAD in biofuel production, Rainforest Foundation Norway cautions that the country risks becoming a dumping ground for unsustainable raw material….“As long as PFAD is classified as ‘waste’, it enjoys huge incentives from the state. Biofuels made out of PFAD are completely exempt from carbon dioxide tax in Finland. Additionally, PFAD’s emissions can be discounted, and it is not subject to the same sustainability criteria as other raw materials.

With ‘flight shame’ gaining more momentum across the world, the aviation industry is desperate to find ways to make flying compatible with climate goals. While replacing fossil fuels with renewables sounds like a great idea, the sustainability of biofuels is highly dependent on the raw materials used to produce them…The most common aviation biofuels, Hydrogenated Esters and Fatty Acids (HEFA) fuels are produced from vegetable oils and animal fats. While the use of waste oils and other recycled materials is possible, the most viable raw materials for HEFA jet fuels are food crops.  “The cheapest and most readily available raw materials for HEFA jet fuel are palm oil and soy oil, which are closely linked to tropical deforestation” Ranum says.  The experts suggest that aiming to reduce emissions by increasing demand for palm and soy oil is a cure worse than the disease.

Elias Huuhtan, Report: Finland’s push to use biofuel could cause ‘massive deforestation, https://newsnowfinland.fi/ , Oct. 7, 2019

Can Nuclear Power Beat Climate Change?

The 2019 World Nuclear Industry Status Report (WNISR2019) assesses the status and trends of the international nuclear industry and analyzes the potential role of nuclear power as an option to combat climate change. Eight interdisciplinary experts from six countries, including four university professors and the Rocky Mountain Institute’s co-founder and chairman emeritus, have contributed to the report.

While the number of operating reactors has increased over the past year by four to 417 as of mid-2019, it remains significantly below historic peak of 438 in 2002.  Nuclear construction has been shrinking over the past five years with 46 units underway as of mid-2019, compared to 68 reactors in 2013 and 234 in 1979. The number of annual construction starts have fallen from 15 in the pre-Fukushima year (2010) to five in 2018 and, so far, one in 2019. The historic peak was in 1976 with 44 construction starts, more than the total in the past seven years.

WNISR project coordinator and publisher Mycle Schneider stated: “There can be no doubt: the renewal rate of nuclear power plants is too slow to guarantee the survival of the technology. The world is experiencing an undeclared ‘organic’ nuclear phaseout.”  Consequently, as of mid-2019, for the first time the average age of the world nuclear reactor fleet exceeds 30 years.

However, renewables continue to outpace nuclear power in virtually all categories. A record 165 gigawatts (GW) of renewables were added to the world’s power grids in 2018; the nuclear operating capacity increased by 9 GW. Globally, wind power output grew by 29% in 2018, solar by 13%, nuclear by 2.4%. Compared to a decade ago, nonhydro renewables generated over 1,900 TWh more power, exceeding coal and natural gas, while nuclear produced less.

What does all this mean for the potential role of nuclear power to combat climate change? WNISR2019 provides a new focus chapter on the question. Diana Ürge-Vorsatz, Professor at the Central European University and Vice-Chair of the Intergovernmental Panel on Climate Change (IPCC) Working Group III, notes in her Foreword to WNISR2019 that several IPCC scenarios that reach the 1.5°C temperature target rely heavily on nuclear power and that “these scenarios raise the question whether the nuclear industry will actually be able to deliver the magnitude of new power that is required in these scenarios in a cost-effective and timely manner.”

Over the past decade, levelized cost estimates for utility-scale solar dropped by 88%, wind by 69%, while nuclear increased by 23%. New solar plants can compete with existing coal fired plants in India, wind turbines alone generate more electricity than nuclear reactors in India and China. But new nuclear plants are also much slower to build than all other options, e.g. the nine reactors started up in 2018 took an average of 10.9 years to be completed. In other words, nuclear power is an option that is more expensive and slower to implement than alternatives and therefore is not effective in the effort to battle the climate emergency, rather it is counterproductive, as the funds are then not available for more effective options.

Excerpts from WNISR2019 Assesses Climate Change and the Nuclear Power Option, Sept. 24, 2019

The Scramble for Lithium

SQM, Chile’s biggest lithium producer [has]Its headquarters in the military district of Santiago bears no name. The man who for years ran the business, Julio Ponce, is the former son-in-law of the late dictator, Augusto Pinochet. He quit as chairman in 2015, during an investigation into SQM for alleged tax evasion. (The company is co-operating with the inquiry.) Last month it emerged that CITIC, a Chinese state-controlled firm, may bid for part of Mr Ponce’s controlling stake in SQM, as part of China’s bid to secure supplies of a vital raw material…

SQM is part of a global scramble to secure supplies of lithium by the world’s largest battery producers, and by end-users such as carmakers. That has made it the world’s hottest commodity. The price of 99%-pure lithium carbonate imported to China more than doubled in the two months to the end of December, to $13,000 a tonne…

The industry is fairly concentrated, which adds to the worry. Last year Albermarle, the world’s biggest lithium producer, bought Rockwood, owner of Chile’s second-biggest lithium deposit. It and three other companies—SQM, FMC of America and Tianqi—account for most of the world supply of lithium salts, according to Citigroup, a bank. What is more, a big lithium-brine project in Argentina, run by a joint venture of Orocobre, an Australian miner, and Toyota, Japan’s largest carmaker, is behind schedule. Though the Earth contains plenty of lithium, extracting it can be costly and time-consuming, so higher prices may not automatically stimulate a surge in supply.

Demand is also on the up. At the moment, the main lithium-ion battery-makers are Samsung and LG of South Korea, Panasonic and Sony of Japan, and ATL of Hong Kong. But China also has many battery-makers…Tesla Motors, an American maker of electric cars founded by Elon Musk, a tech tycoon, is also on the prowl. It is preparing this year to start production at its “Gigafactory” in Nevada, which it hopes will supply lithium-ion batteries for 500,000 cars a year within five years….[I]n August Bacanora, a Canadian firm, said it had signed a conditional agreement to supply Tesla with lithium hydroxide from a mine that it plans to develop in northern Mexico. Bacanora’s shares jumped on the news—though analysts noted that shipping fine white powder across the United States border would need careful handling.Bigger carmakers also have a growing appetite for lithium…

Another big source of demand may be for electricity storage. The holy grail of renewable electricity is batteries cheap and capacious enough to overcome the intermittency of solar and wind power—for example, to store enough power from solar panels to keep the lights on all night.

Excerpts from  An increasingly precious metal, Economist, January 16, 2016

Floating Power Plants: Cayman Islands

A United States company OTEC International is in talks with Caribbean Utilities Company (CUC), Grand Cayman’s electrical provider, to supply renewable energy to the island via Ocean Thermal Energy from a platform at North Side.  According to the company:

“The Cayman Islands has documented its storm history with precision, which made it easier for OTEC International to identify locations where  Floating Power Platforms (FPPs) can be securely sited and appropriately designed to survive strong storm conditions.  The first phase of the Cayman project would be the generation of 6.25-MW renewable electricity* from an FPP that would be permanently moored less than a mile from shore. At this distance from shore, the plant’s visual impact will be minimal because of the platform’s overall low profile. The power generated would be transported to a substation onshore via cable and connected to the island’s CUC grid…..A comprehensive Environmental Impact Assessment (EIA) will be completed before the project can receive all necessary licenses and permits from various governmental authorities.”

*This type of ocean-thermal electricity plant takes advantage of the temperature difference between warm surface water and cold deep seawater.

Excerpts from Company providing floating ocean power platform technology to supply renewable energy to Cayman Islands in talks, Cayman inews, Sept. 21, 2014