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Hydro Energy in Indonesia

Hydro Energy in Indonesia: Powering the Archipelago with Renewables


Indonesia, an archipelago nation blessed with abundant rainfall and diverse topography, possesses immense potential for hydro energy. 

This clean, reliable source of electricity plays a crucial role in securing a sustainable future for the country. This article delves into the current state of hydro energy in Indonesia, exploring its potential, challenges, and prospects.


Current Status:



  • Installed Capacity: As of 2022, Indonesia boasts a total installed hydro power capacity of 6,688.9 megawatts (MW), accounting for 53.3% of the nation’s total renewable energy capacity. This makes it the largest contributor among renewables, outpacing bioenergy, solar, and wind power.

  • Energy Generation: Hydropower contributes approximately 7% of Indonesia’s overall electricity mix, generating around 20,000 GWh in 2020.

  • Distribution: Hydropower plants are scattered across the archipelago, with significant concentrations in Sumatra, Java, and Kalimantan. Major projects include the Cirata (1,008 MW), PLTA Asahan 1 (645 MW), and PHEP Muara Tawar (947 MW) plants.


Untapped Potential:



  • Estimated Potential: Studies suggest Indonesia possesses a theoretical hydro energy potential of 94,627 MW, distributed across over 52,566 sites. This implies a 14-fold increase over the current installed capacity.

  • Run-of-River Systems: Much of this potential lies in run-of-river systems, smaller projects utilizing natural water flow without requiring large dams. These hold promise for decentralized energy generation in remote areas.

  • Kayan Cascade Project: One example of large-scale potential is the Kayan Cascade Project in Kalimantan, projected to generate 9,100 MW upon completion. It aims to power the new capital city, Nusantara, with 80% renewable energy.


Challenges and Considerations:



  • Environmental Impact: While considered clean, large-scale hydropower projects can disrupt ecosystems and displace communities. Careful environmental impact assessments and sustainable practices are crucial.

  • Social Impact: Resettlement of communities affected by dam construction requires sensitive handling and long-term support. Social responsibility and community engagement are vital.

  • Financing and Development: Investing in large-scale projects requires significant capital and can be complex. Public-private partnerships and innovative financing models are needed.

  • Transmission Infrastructure: Expanding the transmission grid is essential to connect remote hydropower plants to population centers. Efficient grid development is crucial.
Hydro Energy in Indonesia



Prospects and Future Outlook



  • Government’s Commitment: The Indonesian government aims to increase the share of renewables in the energy mix to 31% by 2050. Hydropower is expected to play a significant role in achieving this target.

  • Focus on Mini-Hydropower: Development of mini-hydropower plants (below 10 MW) is gaining traction, providing clean energy access to remote communities and reducing reliance on fossil fuels.

  • Technological Advancements: Advancements in hydro turbine technology and pumped storage solutions offer opportunities for improved efficiency and flexibility.

  • Regional Cooperation: Collaborations with neighboring countries for cross-border hydropower projects can unlock further potential and enhance regional energy security.


Table: Major Hydropower Plants in Indonesia:



Plant Name Installed Capacity (MW) Location Year Commissioned
Cirata 1,008 West Java 1987
PLTA Asahan 1 645 North Sumatra 1982
PHEP Muara Tawar 947 East Kalimantan 2019
Saguling 510 West Java 1985
PLTA Paiton 330 East Java 1989
Singkarak 75 West Sumatra 2008
PHEP Sutami 510 South Sulawesi 2014



Conclusion:


Hydro energy offers a reliable and clean source of power for Indonesia’s growing energy needs. While challenges exist, concerted efforts towards sustainable development, community engagement, and technological advancements can unlock the vast potential of this renewable resource. By harnessing the power of its flowing waters, Indonesia can pave the way for a brighter, greener future.


https://www.exaputra.com/2024/02/hydro-energy-in-indonesia-powering.html

Renewable Energy

Will the Billionaire Taxes Cause the Rich to Go Elsewhere?

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One of the most common arguments against taxing the rich is that they will simply leave whatever area is levying the tax.

We hear about this most often in connection with New York City, where its liberal mayor using the taxes he’s raising the build infrastructure, feed hungry people, etc.

Here’s what’s happened in Massachusetts.

https://www.2greenenergy.com/2026/05/18/will-the-billionaire-taxes-cause-the-rich-to-go-elsewhere/

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Renewable Energy

Some Investments Are Bound to Fail–But Only Time Will Tell Us Which Ones

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A common tactic of Big Oil and the rest of the Trump-supporting world is to point out that some of our government’s investments in cleantech do not pan out.

Unscrupulous people, as well as tens of millions of idiots, are enraged by these failures and interpret them as evidence of incompetence and/or corruption.

On the other hand, fair-minded people understand that it’s impossible for all these investments to be winners; some are bound to fail as the advancement of technology makes unforeseeable twists are turns.

The plummeting costs of solar PV and wind over the past 10 years wiped out a great number of investors in both the private and public sectors, and solar thermal (shown here) was only one.

As an example, I used to attend the annual conferences on hydrokinetics, and I always looked forward to them.  Guess what?  They’re gone. They no longer exist, as a result of the fact that the LCOE (levelized cost of energy) of all forms of hydro can’t compete on large-scale projects, and thus have been relegated to small, niche applications.

https://www.2greenenergy.com/2026/05/18/tactic-of-big-oil/

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Renewable Energy

NextEra Bids for Dominion, Hornsea 3 Foundation Installed

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Weather Guard Lightning Tech

NextEra Bids for Dominion, Hornsea 3 Foundation Installed

Allen covers NextEra’s potential $400 billion buy of Dominion Energy, US developers racing the July tax credit deadline, Ming Yang scouting Spain for a factory, Turkey opening its first offshore wind tender, and Hornsea 3’s first foundation going in.

Sign up now for Uptime Tech News, our weekly email update on all things wind technology. This episode is sponsored by Weather Guard Lightning Tech. Learn more about Weather Guard’s StrikeTape Wind Turbine LPS retrofit. Follow the show on FacebookYouTubeTwitterLinkedin and visit Weather Guard on the web. And subscribe to Rosemary Barnes’ YouTube channel here. Have a question we can answer on the show? Email us!

Allen Hall 2025: Good morning, everyone. The world is racing at the minute, and let’s start with the biggest race of all. NextEra Energy, the largest utility in America by market value, is in talks to buy Dominion Energy of Virginia. The price? It’s about $76 a share, roughly $66 billion. With debt, the combined company would be valued at about $400 billion.

That would make it the largest power deal on record. A mostly stock transaction, at least that’s what’s being reported, and a deal could come as soon as this week. Pretty shocking. Now, why does this matter to wind? NextEra is [00:01:00] not just a utility. It is one of the largest renewable energy developers on the planet.

And Dominion sits on top of Northern Virginia’s data center alley, the biggest concentration of data centers in the country. Dominion expects its peak demand to double by the end of the twenty-thirties, American power consumption hit a second straight record in twenty-twenty-five, and it’s still climbing. So the company that builds more wind and solar than almost anyone wants to merge with the company that serves the hungriest grid in America. That is a race to the top. But down on the ground, developers are running a very different kind of race.

Wind projects under construction in the United States are up 60% since the start of twenty-twenty-five. Solar is up about 50%. Why the surge? Well, the clock is ticking. Tax credits for wind and solar were gutted in the one big beautiful bill. Projects must begin construction by July 4th [00:02:00] and prove they are building continuously to qualify.

Under the Inflation Reduction Act, those credits were supposed to phase out at the end of twenty-thirty-three. Now that deadline is just a couple of weeks away. Developers are pushing hard on projects that can make it and abandoning the ones that cannot. One solar executive put it plainly: “A lot of the projects are going to die on the vine.”

And that’s a real shame. Labor is short. Of course, electricians are in demand. Transformer lead times have stretched to 18 months because data centers are buying them too. Even permits are hard to get. Projects that touch federal land, of course, that once took a month to approve are now waiting up to a year.

So while NextEra races to buy the grid, developers are racing to build before the door shuts. Now, across the Atlantic, there’s a different kind of race going on. Chinese turbine manufacturer MingYang [00:03:00] Smart Energy is looking for a new home, and quick. Back in March, Britain blocked the company’s plans for a one-and-a-half billion pound factory in Scotland, mostly based on security grounds.

MingYang’s European chief, Horatio Evers, says the company is now talking to Spain and scouting other locations on the continent. He says MingYang wants to build turbines in Europe with a European workforce. And this is the part I don’t understand, ’cause European workforce tend to be more expensive.

However, uh, MingYang wants to build that factory, but there’s a condition. They need a guarantee that their turbines will be allowed into the market, and so far that hasn’t happened. The European Commission launched a review of Chinese manufacturers back in 2024. Those findings are still unpublished. So MingYang is racing to find a country willing to say “Yes.”

Further east, Turkey is entering the offshore wind [00:04:00] race for the first time. The government has defined four areas along its western coast, all on the Aegean, for its first ever offshore wind tender. Turkey’s energy minister says Turkey aims for five gigawatts of offshore wind by 2035.

The country has committed $30 billion to transmission infrastructure. And Turkey already has 15 gigawatts of onshore wind spinning today. Turkey is, of course, a NATO ally, and it straddles Europe and Asia, and now it’s stepping into offshore wind. And finally, up in the North Sea, off the coast of Norfolk, England, 75 miles from shore, Cadeler of Copenhagen just installed the first monopile foundation at Hornsea 3.

When complete, Hornsea 3 will be the single largest offshore wind farm on the planet. 2.9 gigawatts, 197 foundations, enough power for 3.3 [00:05:00] million British homes. The project is owned by Danish giant Ørsted and will bring 5,000 construction jobs to the region. Hornsea 1 and 2 are already spinning, and of course, Hornsea 4 is on the drawing board.

So here’s the picture. America’s two biggest utilities are racing toward a $400 billion merger. Developers are sprinting to break ground before the Fourth of July. A Chinese turbine maker is searching Europe for a factory, and Turkey is marking out its first offshore wind zones. And over in Britain, they just planted the first foundation at the world’s largest wind farm.

Everyone is racing. The only question is, who gets there first? And that’s the state of the wind industry for the 18th of May, 2026. Join us tomorrow for the Uptime Wind Energy podcast

NextEra Bids for Dominion, Hornsea 3 Foundation Installed

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