This Caribbean Island Just Went 100% Renewable - Via Winston Connolly

Bonaire (pop. 14,500), a small island off the coast of Venezuela, is famous for its beautiful marine reefs, which are visited by 70,000 tourists every year.

Bonaire

What many of the tourists don't realize is that the majority of the electricity powering their needs comes from renewable energy. Yet for the residents of Bonaire, the switch from fossil-fueled to renewable energy systems has made a world of difference.

Like many Caribbean islands, Bonaire originally relied on diesel fuel to generate electricity for residents, with a peak demand of 11 megawatts (MW). This fuel had to be shipped in from other nations, resulting in high electricity prices for Bonaire residents, along with uncertainty about when and how much prices might increase with changing fuel costs.

In 2004, everything changed when a fire destroyed the existing diesel power plant. Although tragic, the situation provided an opportunity for Bonaire to consider what kind of new electricity system to build. Temporary diesel generators were rented to provide power for the short term. Meanwhile, the government and local utility began working together to create a plan that would allow Bonaire to reach a goal of generating 100 percent of its electricity from renewable sources.

Bonaire's Electricity System Transformation

The result is a transformed electricity system on Bonaire. The island is now home to 12 wind turbines with a total of 11 MW of wind power capacity, which contribute up to 90 percent of the island's electricity at times of peak wind, and 40-45 percent of its annual electricity on average.

Battery storage (6 MWh) is included in order to take advantage of available power in times of excess wind, and provide that stored electricity in times of low wind. The battery also boosts the reliability of the overall system—it is capable of providing 3 MW for over two minutes, allowing time for additional generation to be started when there is a sudden drop in wind.

The Bonaire system also includes 14 MW of diesel generation, five total generators, which provide the necessary power to meet the load when there is not enough wind power available. The generators are equipped to run on both traditional diesel as well as biodiesel. The next steps in the island's energy transformation involve using local algae resources, grown in the large salt flats on the island, to create biofuel, which can then be used in the existing generators. This will allow Bonaire to operate a 100 percent renewable electricity system—with on average 40–45 percent from wind and 55-60 percent from biodiesel.

The new electricity system led to more reliable electricity, more employment opportunities, reduced dependence on oil (and its fluctuating prices), and a reduction in electricity bills. Bonaire residents currently pay $0.22/kWh for electricity, much lower than prices on other nearby Caribbean islands, which are often $0.36/kWh or above.

When oil prices spiked in 2008, while Bonaire was still using temporary diesel generators before making its transition to renewables, electricity prices on the island reached $0.50/kWh. The new electricity system also created jobs for the construction and ongoing operation of the wind farm, and for research and development of algae production capabilities and conversion to biofuel. Additional employment opportunities will be created for continuing algae production and operation of the biodiesel plant.

The success of the updated electricity system on Bonaire provides an important example to other nearby islands of the opportunity to achieve high levels of renewable energy penetration.

http://www.businessinsider.com/bonaire-goes-renewable-energy-2015-1

 

© Climate War Room

Paris climate deal prompts call for action in Cayman

The Cayman Islands must set more aggressive targets on increasing renewable energy and reducing carbon dioxide emissions in the light of the Paris agreement on climate change, green energy advocates have said.

The Paris climate deal, hailed as an historic feat of international diplomacy, established a commitment from 195 countries to contain planet-warming carbon emissions.

Cayman, as a British territory, was not involved in the talks and is not a direct signatory to the agreement, which set a goal of reducing global temperature rises to less than 2C. The final submissions to the agreement are not enforceable and carry no consequences.

However. James Whittaker, president of the Cayman Renewable Energy Association, said the Paris accord represents a “paradigm shift” in the international approach to climate change and suggested Cayman would have to get on board.

Tim Austin, deputy director of the Department of Environment, said the National Conservation Council is also pushing for clearer and more ambitious targets.

A draft national energy policy, published in 2013, sets a goal that 13.5 percent of electricity sold should be generated from renewable sources by 2030. It also targets a 19 percent reduction in greenhouse gas emissions compared to a “business as usual scenario.”

Mr. Whittaker said the Paris agreement, referred to as COP 21, represents an international consensus that far more radical action is needed. He said Cayman’s targets on renewable energy are among the least ambitious of any country.

While Cayman’s net contribution to climate change is negligible, the territory is among the highest producers of carbon emissions per capita in the world, according to Mr. Austin.

Mr. Whittaker, added, “I believe COP 21 sets ambitious climate change benchmarks globally and it clearly suggests that Cayman must take a more aggressive approach to adopting renewable energy and reducing our carbon emissions. This is something CREA have been telling the government for some time now. That said, it still doesn’t appear the decision-makers in government are yet paying attention to the critical issues of renewable energy and carbon reduction.”

He added, “I am cautiously optimistic that the government will finally wake up and realize that this paradigm shift is happening all over the world for a reason and will start to ensure it happens in Cayman soon.”

Mr. Austin said the Cayman Islands could request to be included in commitments coming out of the agreement.

“At the moment, the U.K. does not push out those climate agreements to its territories, but this could potentially change with Cayman’s recent request to the U.K. government to include Cayman in its second commitment period to the Kyoto Protocol (2013-2020).

“The National Conservation Council is currently working on a climate change policy and would like to see clearer, more ambitious targets, in line with what the U.K. has signed up to.”

He said the Paris summit represents a significant milestone in gaining an international consensus that something needs to be done to curb the amounts of CO2 going into the atmosphere and limit the consequences of global warming.

Mr. Austin said the ambitious targets set in Paris were driven, in part, by small-island states concerned about the consequences of climate change.

Tim Austin - DOE

In 2009, the Maldives, one of the flattest countries on Earth, held a Cabinet meeting underwater in scuba gear as a stunt to generate publicity for the consequences of not acting on the issue.

Cayman’s position is less grave, but Mr. Austin warns that with the majority of Cayman’s population and major infrastructure located a short distance from the coastline, increasing storm intensity and flood risk present a potentially significant challenge.

He said the impact of climate change is already evident on coral reefs around Cayman.

Mr. Whittaker said Cayman’s size should not stop it from doing its part.

“While our aggregate emissions are small compared to large economies, we emit a lot of carbon per capita on this little island. I believe it’s a hypocritical and shortsighted position to just let the rest of the world handle it when we are expecting others to do things we are not willing to do ourselves.

“We need to show leadership here, regionally and globally. If we expect the world to change we have to be part of that change.” More

 

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