In less than 10 years the country has slashed its carbon footprint and lowered electricity costs, without government subsidies. Delegates at the Paris summit can learn much from its success. Renewables now provide 94.5% of Uruguay’s electricity. As the world gathers in Paris for the daunting task of switching from fossil fuels to renewable energy, one small country on the other side of the Atlantic is making that transition look childishly simple and affordable. In less than 10 years, Uruguay has slashed its carbon footprint without government subsidies or higher consumer costs, according to the country’s head of climate change policy, Ramón Méndez.

In fact, he says that now that renewables provide 94.5% of the country’s electricity, prices are lower than in the past relative to inflation. There are also fewer power cuts because a diverse energy mix means greater resilience to droughts. It was a very different story just 15 years ago. Back at the turn of the century oil accounted for 27% of Uruguay’s imports and a new pipeline was just about to begin supplying gas from Argentina.

Now the biggest item on import balance sheet is wind turbines, which fill the country’s ports on their way to installation. Biomass and solar power have also been ramped up. Adding to existing hydropower, this means that renewables now account for 55% of the country’s overall energy mix (including transport fuel) compared with a global average share of 12%. Now, Uruguay is being recognised for progress on decarbonising its economy. It has been praised by the World Bank and the Economic commission for Latin America and the Caribbean, and the WWF last year named Uruguay among its “Green Energy Leaders”, proclaiming: “The country is defining global trends in renewable energy investment.”

Cementing that reputation, Méndez – formerly the country’s national director of energy – has gone to this week’s UN talks with one of the world’s most ambitious national pledges: an 88% cut in carbon emissions by 2017 compared with the average for 2009-13.There are no technological miracles involved, nuclear power is entirely absent from the mix, and no new hydroelectric power has been added for more than two decades. Instead, he says, the key to success is rather dull but encouragingly replicable: clear decision-making, a supportive regulatory environment and a strong partnership between the public and private sector. As a result, energy investment – mostly for renewables, but also liquid gas – in Uruguay over the past five years has surged to $7bn, or 15% of the country’s annual GDP. That is five times the average in Latin America and three times the global share recommended by climate economist Nicholas Stern.

“What we’ve learned is that renewables is just a financial business,” Méndez says. “The construction and maintenance costs are low, so as long as you give investors a secure environment, it is a very attractive.”The effects are apparent on Route 5 from Montevideo to the north. In less than 200 miles, you pass three agroindustrial plants running on biofuel and three wind farms. The biggest of them is the 115MW Peralta plant built and run by the German company, Enercon. Its huge turbines – each 108 meters tall – tower over grasslands full of cattle and rhea birds.Along with reliable wind – at an average of about 8mph – the main attraction for foreign investors like Enercon is a fixed price for 20 years that is guaranteed by the state utility. Because maintenance costs are low (just 10 staff) and stable, this guarantees a profit. As a result, foreign firms are lining up to secure wind farm contracts.

The competition is pushing down bids, cutting electricity generating costs by more than 30% over the past three years. Christian Schaefer, supervising technician at Enercon said his company was hoping to expand and another German company Nordex is already building an even bigger plant further north along route five. Trucks carrying turbines, towers and blades are now a common sight on the country’s roads. Compared to most other small countries with high proportions of renewables, the mix is diverse. While Paraguay, Bhutan and Lesotho rely almost solely on hydro and Iceland on geothermal, Uruguay has a spread that makes it more resilient to changes in the climate. Wind farms such as Peralta now feed into hydro power plants so that dams can maintain their reservoirs longer after rainy seasons.

According to Méndez, this has reduced vulnerability to drought by 70% – no small benefit considering a dry year used to cost the country nearly 2% of GDP. This is not the only benefit for the economy. “For three years we haven’t imported a single kilowatt hour,” Méndez says. “We used to be reliant on electricity imports from Argentina, but now we export to them. Last summer, we sold a third of our power generation to them.”There is still a lot to do. The transport sector still depends on oil (which accounts for 45% of the total energy mix). But industry – mostly agricultural processing – is now powered predominantly by biomass cogeneration plants.

Méndez attributed Uruguay’s success to three key factors: credibility (a stable democracy that has never defaulted on its debts so it is attractive for long-term investments); helpful natural conditions (good wind, decent solar radiation and lots of biomass from agriculture); and strong public companies (which are a reliable partner for private firms and can work with the state to create an attractive operating environment).While not every country in the world can replicate this model, he said Uruguay had proved that renewables can reduce generation costs, can meet well over 90% of electricity demand without the back-up of coal or nuclear power plants, and the public and private sectors can work together effectively in this field.

• This article was amended on 4 December 2015. An earlier version described Ramón Méndez as Uruguay’s national director of energy; he was formerly, but Olga Otegui now holds that post.

Source: www.theguardian.com