How a Portuguese island has increased renewables portfolio by 50%


Danish energy equipment firm HowardScott and renewable energy investment firm Recharge A/S have partnered Wärtsilä and Graciolica to increase the use of renewable energy on Graciosa Island from 15% to 65%.

Wärtsilä has provided a grid energy solution to optimise the management and operation of Graciosa Hybrid Renewable Power Plant.

The aim is to reduce diesel fuel consumption and maximise renewable energy for the over 4,000 island inhabitants.

The project increases the use of renewables from 15% to 65% and eliminates approximately 190,000 litres of diesel fuel per month.

Energy storage will be leveraged to overcome the intermittency of renewable sources, manage the frequency and quality of the supplied power, and provide backup energy to meet spikes in demand.

Wärtsilä will also provide software maintenance services under a five-year agreement.

 “As a nation of islands, climate change is a matter of urgent priority,” said Scott Macaw, Director of HowardScott, said: “The Graciólica project is one example of the ways in which we are working to mitigate the effects of the environmental crisis. The island grid integrated and optimised by Wärtsilä will provide Graciosa with an environmental benefit as well as many economic benefits to our local communities.”

Risto Paldanius, Director, Business Development, Energy Storage and Optimisation, Wärtsilä, adds: “Today, about 17 percent of global energy generation comes from renewables, but as we move towards higher renewable energy penetration levels, energy storage becomes a critical asset. Utilities and independent power producers are increasingly turning to energy storage systems to integrate renewable sources into their baseload generation to build more efficient, reliable and environmentally sound hybrid power systems.”

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