Tag Archives: Mike G. Eman

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

 

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Green Aruba 2015 Conference

Green Aruba is an annual conference born in 2010 with the specific aim to place dedicated emphasis on Aruba's energy transition to 100% fuel independence.

Besides showcasing Aruba's progress and challenges to the accelerated penetration of renewables in the total energy mix, Green Aruba also exhibits the experiences and knowledge of other institutions and island nations in this field. Over the past six years, Green Aruba has evolved into a practical and valuable well-known platform within the region for the exchange of information and applied knowledge on sustainable and best practices for the shift to cleaner, more environmentally friendly energy sources and resources.

Green Aruba VI – Share Sustainability

At this year's Green Aruba conference to be held October 27th and 28th, the main theme will focus on sharing sustainability by together confronting the common barriers we face, identifying the solutions moving forward and creating the essential roadmaps to achieve our desired growth paths of the sustainability journey for our island nations.

Aruba has made remarkable progress over the years in the penetration level of renewables and/or efficiency at production level, with in 2015 reaching close to the 20% mark. With the ongoing and upcoming planned projects operational by the end of 2017, the 40% barrier will be surpassed by 2018!

With our goal to reach 100% fuel free energy production by 2020, and in order to surpass the 40% level, it is fundamental to embark on a “deep dive” into our existing energy mix. Aruba is examining cutting-edge technologies and new business models for our utility companies, all in conjunction with our RAS framework, to create a balance between Reliable and Sustainable investments. This balancing act will only be achievable if energy production costs remain Affordable for the customer base.

Local utility stakeholders together with foreign renowned institutions are preparing for this dive known as the Aruba Renewable Integration Study (ARIS), and will present their approach and concept at the upcoming conference. The ARIS will provide models that map out the road forward towards Aruba's aspiring renewable energy goals, while maintaining grid reliability and minimizing overall system costs, and can serve as a prototype or starting point for fellow island nations. More

 

 

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