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Using Indonesia's hydropower potential
Indonesia, Renun
ClimatePartner ID: 1002
HydropowerGet to know the project

Less than six percent of Indonesia's electricity was generated from renewable energy sources in 2015, and by 2025 this figure is expected to rise to 23 percent. Our climate protection project in northern Sumatra is contributing to this by exploiting the enormous hydropower potential here.

The run-of-river power plant uses a natural height difference of 500 meters. The water comes from the rivers Lau Renun, Haporas, Bargot and Tapian Nauli and flows into Lake Toba in a volcanic crater. Two turbines with a capacity of 41 megawatts each generate clean electricity, which is fed into the Sumatra grid and improves the supply of sustainably generated electricity. To preserve the unique character of the landscape and the biodiversity of the region, all water pipes have been laid underground. Thanks to the natural gradient, only a very small reservoir was needed to accumulate the water, thus avoiding the resettlement of the local population.

270,019 t CO₂Estimated annual emissions reductions
Project Standard
The project contributes to the the United Nations' Sustainable Development Goals
How hydropower contributes to climate action

Hydropower plants use the energy of water to generate electricity. The energy is harnessed by passing water through a turbine. Under the pressure of the water, the turbine turns and transfers this energy to a generator, which converts kinetic energy into electricity. This principle applies to all types of hydroelectric power plants: from small run-of-river power plants to pumped-storage power plants on bodies of water like lakes. In many parts of the world, electricity is still primarily generated from fossil fuels. Clean hydropower can replace some of this emission-intensive energy and thus verifiably save carbon emissions. In most hydropower projects, the electricity is fed into a regional power grid, diversifying the energy supply and improving energy security in areas affected by power shortages and blackouts. Often, these projects also create jobs for the local population. Hydropower projects thus make an important contribution to clean energy supply as well as contributing to the UN Sustainable Development Goals (SDGs). Hydopower projects in the ClimatePartner portfolio are registered with international standards.

The project aims to contribute to these United Nations’ Sustainable Development Goals (SDGs).

Project facts

Climate projects generally fall into one of three groups: carbon reduction, carbon removal, or carbon avoidance. Carbon reduction projects reduce the amount of greenhouse gas emissions produced by a specific activity (e.g., improved cookstoves). Carbon removal projects remove carbon from the atmosphere by sequestering it in carbon sinks (e.g., reforestation). Carbon avoidance projects avoid greenhouse gas emissions entering the atmosphere (e.g., protecting forests from deforestation with REDD+ projects).

All climate projects are based on international standards. They set processes and requirements which carbon projects must fulfill to be recognised as a proven method of reducing carbon emissions.

Climate projects demonstrably reduce, remove, or avoid greenhouse gas emissions. This is achieved with various technologies, ranging from nature-based solutions to social impact projects and renewable energies.

Climate projects go through third-party validation and verification. Verification happens regularly after each monitoring period. A validation and verification body checks and assesses whether the values and project activities stated in the monitoring report are correct and verifies them. As with validation, visits to the project site are often part of the process.

This figure shows the estimated annual emission reductions calculated before the project started. The actual number of emissions saved in each monitoring period may differ. The background to this process is that in order to be registered as a climate project, the project operator must submit the calculation of the estimated emissions savings using the ex-ante methodology in a Project Design Document (PDD), which is similar to a business plan. This calculation is validated by an independent auditor. The values determined in the PDD are recalculated during regular monitoring periods based on actual project performance, documented in a monitoring report, and verified again by independent auditors at the end of the monitoring period to ensure a robust process. Independent verification thus provides ex-post verification of actual emission reductions. Verified emission reductions are not distributed until the savings have actually been made.
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