We appreciate your interest in Wärtsilä's solutions. Please have a look at the material provided below. These are suggestions and recommendations from us. We hope that this can be the basis for further discussions and eventually a proposal for you.

This is how a power plant could look based on your selections

Here is a visualisation of a power plant that is of similar size as you selected (click on the image to view full screen). When we deepen our discussions we can provide a layout visualisation that is according to the exact specifications of your power plant project.

Suggested range of engines

Based on your selections we suggest that you familiarize yourself with our range of gas engines. Once we have a deeper understanding of your power plant needs we can further define which specific engine model is most suitable for your power plant project.

The main products in our gas engine range are presented here:

Wärtsilä 34SG (ca 10MW unit) - agility and flexibility combined with high efficiency over the whole load range and in any operating profile makes this plant excellent for both flexible baseload and peak load, and supporting the grid with a variety of ancillary services.

Customer references

PT PLN Lombok GECC, Indonesia

Print

Indonesia is one of Asia's fastest-growing economies in terms of energy consumption. With a steadily growing population of nearly 270 million and an increasing rate of urbanisation, there is a significant need for a reliable and guaranteed power supply throughout the archipelago. In recent years, the country has successfully increased their installed capacity and investments in infrastructure to both improve the reliability and efficiency of the main grids and increase the electrification of the small grids.

In 2016, a valued customer of ours, PT PLN, ordered a 135 MW Flexicycle™ power plant from Wärtsilä, to provide power to the grid in Lombok, an island located east of Bali and west of Sumbawa in the West Nusa Tenggara province of Indonesia.

Reliable and cost-efficient energy

The PLN Lombok GECC power plant, delivered in 2019, is powered by 13 Wärtsilä 34DF engines that can run on light fuel oil and liquified natural gas. When the gas supply is uncertain or prices are volatile, it is possible to switch from gas to liquid fuel, and vice versa, even during operation, while maintaining a high output. Wärtsilä gas engines reach over 50% electrical efficiency, which translates into considerable savings in fuel costs compared to other technologies.

Built in a consortium with PT Pembangunan Perumahan (Persero) Tbk (PT PP), one of Indonesia's largest construction contractors, the PLN Lombok GECC 135 MW power plant is the first Flexicycle power plant in Indonesia. The power plant is able to operates in two different dispatch modes: 50% of its capacity being baseload and the remaining engines in the power plant supporting frequency control for the island, which allows an existing 20 MW solar PV plant to operate without battery energy storage.

In addition to the power plant's primary functions, the Wärtsilä engines have effectively balanced the intermittency caused by solar power in Lombok's power system. The island hosts four 5 MWp solar PV installations operating without energy storage support. The engine power plant’s flexibility enables PT PLN to add more solar PV capacity in the future without the need to add energy storage, but rather leveraging the already existing Wärtsilä's extensive installed base in Indonesia.  The ability to integrate more renewable energy assets into the existing power system in the future further will continue to reduce the system's levelised cost of electricity (LCOE) and decrease the CO2 emissions, thus helping PT PLN to achieve their net zero targets while saving costs in electricity production.

Being the island's main power plant, the PLN Lombok GECC plant produces reliable, affordable, and more environmentally friendly electricity for the people of Lombok.

Serving customers all the way

A 5-year Operation and maintenance (O&M) agreement was signed between Wärtsilä and PT PLN in 2019 when the power plant was delivered. With Wärtsilä O&M agreements, we take full responsibility for operating and maintaining your power plant and guarantee its performance, providing reliable, safe and efficient operations, cost predictability and maximised return on investment.

Wärtsilä has had a longstanding and healthy partnership with PT PLN, underscoring our commitment to the Indonesian energy sector. Wärtsilä Energy has established a significant presence in Indonesia, with over 5.5 GW of installed capacity across the country. Currently, we manage at least 25 installations with a collective capacity of nearly 2.0 gigawatts, delivering comprehensive services through our Lifecycle solution agreements and Parts predict. With all our solutions and engine models already in the country, Wärtsilä is well-equipped to meet Indonesia's energy needs and drive forward its energy transition.

Challenge

Integrating more renewable energy to already existing installed base
Frequency control
Need for operational and fuel flexibility

Solution

135 MW Flexicycle power plant operating on 13 x W20V34DF dual fuel engines operating on liquified natural gas and light fuel oil
Engines capable of balancing the intermittency of renewable energy
5-year O&M agreement

Benefits

Helping PLN to achieve net zero emission target
Reduced cost of electricity generation
Showcasing how engines can be used to, opening the possibility to add renewable energy capacity integrated with existing installed base.
Reliable, affordable and more environmentally friendly electricity for the people of Lombok Island.

Challenge

Integrating more renewable energy to already existing installed base
Frequency control
Need for operational and fuel flexibility

Solution

135 MW Flexicycle power plant operating on 13 x W20V34DF dual fuel engines operating on liquified natural gas and light fuel oil
Engines capable of balancing the intermittency of renewable energy
5-year O&M agreement

Benefits

Helping PLN to achieve net zero emission target
Reduced cost of electricity generation
Showcasing how engines can be used to, opening the possibility to add renewable energy capacity integrated with existing installed base.
Reliable, affordable and more environmentally friendly electricity for the people of Lombok Island.

More about flexible engine technology

Wärtsilä offers a wide range of flexible engine power plant solutions that can provide baseload availability or support an optimised transition to renewable energy.

Wärtsilä EPC know-how available for you!

Wärtsilä’s wide range of project service options offer an unbeatable advantage to any power plant project. With 30 years of experience from projects in more than 90 countries, we can prove that our project management, engineering, procurement, installation and construction, logistics and commissioning services are of the highest quality and lowest risk.

Wärtsilä services as your partner in power plant operations and maintenance

An operation & maintenance solution with Wärtsilä means entering into a partnership, agreeing on and working towards shared productivity and profitability goals for your company.

Customer benefits:

Wärtsilä responsible for operation & maintenance
Lifecycle cost guarantee
Risk management
Optimised operation and ensured performance
Maximised productive lifetime of the installation
Maximised return on investment
Latest information on product development and technical upgrades

Thank you! We appreciate your interest and time. If you want to learn more about the solutions we offer please visit www.wartsila.com/energy. If you want to download more material you can visit our downloads section.