Geothermal and Energy Solutions
EFLA offers geothermal and energy solutions for projects at every stage, from early exploration and feasibility to design, construction and operation. In connection with our participation at the World Geothermal Congress 2026 (WGC), we have highlighted the breadth of our expertise and experience across geothermal energy services.
Geothermal Energy
Geothermal energy is one of the most reliable sustainable and renewable energy source available today. The knowledge on utilization of geothermal energy both for electrical production as well as district heating, and other direct usage has been building up rapidly in Iceland and abroad for the last decades.
We offer advice on business modelling and planning, and assist our clients with financing geothermal projects. In addition, we understand the close relationship of successful geothermal projects and characterization of the geothermal resource. Therefore, we place special emphasis on the exploration of geothermal resources as part of geothermal projects.
EFLA is one of the world’s few engineering consulting firms with decades of experience in harnessing this rapidly emerging but technologically demanding energy source.
Our Services
Determining if your potential project can move forward or not, is a decision that needs to be bases on sound and accurate data. Indeed, successful drilling and design depend greatly on data collected in the early stages of geothermal development.
EFLA’s staff are highly experienced in exploration phases of geothermal development and have worked globally on data collection and evaluation, often cooperating closely with leading geological experts in the field.
Geothermal systems are complex by nature, and no two resources are the same. The quality of work during exploration can strongly influence project success at later stage.
Services include:
- Geological, geochemical and geophysical investigations
- Conceptual modelling and field evaluation
- Monitoring, anomaly confirmation and fault mapping
Geothermal heat can be used directly in industrial processes, aquaculture, horticulture, district heating, spas and other applications beyond electricity production.
EFLA has experience in direct and indirect geothermal utilization for swimming pools, spas, greenhouses and fish farming.
Utilizing Downstream geothermal fluid for direct use can add value to geothermal projects and generate more revenue than initial electrical generation and provide better financial return.
Additionally, EFLA has specialized in the utilisation of non-condensable gases (NCGs) from wells and power plants. These gases are often rich in CO₂ and therefore offer valuable opportunities for further use, such as carbon capture, beverage production, greenhouse cultivation, and e-fuel production.
Services include:
- Industrial and agricultural uses
- District heating and cooling
- Health, wellness and spa solutions
- Hotels, swimming pools and greenhouses
- Aquaculture and selected process applications
Funding geothermal projects requires a clear understanding of project development, resource milestones and risk.
EFLA’s wide range of experience in geothermal projects allows our experts to perform reliable investment- and operational cost analysis for geothermal projects.
With a correct funding plan and a clear view of the resource milestones that are organized and phased in the development financing will lead to lower risk.
Services include:
- Feasibility studies and due diligence
- Financial and technical risk assessment
- Phased financing support
- Business development for geothermal projects
Proper plant design, planning and supervision help reduce investment risk and delays, while exploration data supports mass and energy modelling and feasible plant configurations.
EFLA supports the design, tendering and development of geothermal power plants for electrical generation and cascading use.
EFLA has over 30 years’ experience in Power Plant engineering in all disciplines including civil-, control-, environmental-, high/low voltage electrical-, mechanical- and transmission engineering.
Services include:
- Power plant modelling and optimization
- Steam field and plant design
- Binary, flash and combined plant solutions
- Control systems, tender documents and commissioning
Binary cycle power plants make it possible to generate electricity from low- and medium-temperature geothermal resources and are suitable where conventional flash plants are not.
EFLA has extensive experience in the design, modelling and cost estimation of binary power plant projects.
Geothermal energy can be found everywhere on earth and binary power plants make it possible to utilize that energy source almost anywhere.
Service include:
- Pre-feasibility and feasibility studies
- Plant modelling and cost estimation
- Design, tendering and procurement
- Contracting, commissioning and delivery support
District heating systems distribute heat that is generated in centralized locations to residential and commercial sites. The district heating system in Reykjavík is the largest geothermal district heating system in the world, and has been under development since the 1930s. District heating has an important role to play in making the future energy systems more sustainable, and increasing the energy efficiency.
The engineers at EFLA provide solutions that are built on a trusted knowledge and provide complete services in all areas regarding district heating systems, such as preliminary analysis, cost studies and design. EFLA has extensive experience in designing district heating systems and delivers designs that are reliable and efficient.
Geothermal district heating is predictable, local, stable and supports domestic energy security.
Services include:
- Preliminary studies and cost analysis
- Planning and design of supply and distribution systems
- Thermal, hydraulic and control system design
- Evaluation and renewal of existing systems
Bathing in natural pools has been part of human history for centuries. While modern swimming pools and spas are relatively recent inventions, the tradition of relaxing in thermal waters is deeply rooted in Icelandic culture. In fact, the health benefits of bathing in geothermal baths have been enjoyed here since the country’s settlement over 1,100 years ago.
EFLA has extensive knowledge and experience in the design of swimming pools, as well as in the assessment and redesign of existing facilities. EFLA specializes in evaluating the balneological potential of natural geothermal waters.
Through long-term consulting partnerships with spa and swimming pool operators, EFLA has developed a strong understanding of the key factors that underpin successful operations. These include energy efficiency, optimization of operation and maintenance (O&M), and the management of lifecycle costs.
Services include:
- Concept and technical design
- Assessment of geothermal water characteristics
- Pumping, filtration and dosing systems
- Ventilation, electrical and lighting design
A fundamental aspect of any development project is ensuring that the outcome aligns with the original plans. EFLA supports geothermal developers throughout the construction phase by providing project supervision and monitoring progress to ensure successful delivery.
No two geothermal resources are the same, but EFLA´s staff can provide expert guidance based on 40 years experience in geothermal all over the world. Minimizing risk and overseeing the construction as planned are one of numerous tasks of our geothermal team at any stage of development . These tasks also include supervision of construction, electrical systems and welding procedures.
EFLA´s construction supervision team is a vital part of the successful execution of a construction project. Our experts have the correct experience, knowledge and skills to execute the construction supervision diligently.
Services include:
- Construction supervision and site management
- Supervision control and field engineering
- EHS management and supervision
- Pre-operation and commissioning support
Power plant owners are increasingly relying on automation and precise process control. Automation consultants play an important role in developing integrated control system solutions that meet future requirements.
EFLA offers broad service in the field of process control and automation solutions for renewable energy, including geothermal and hydro power generation. Strong process knowledge in geothermal systems, advanced control technology and partnership with leading suppliers of automation products has created opportunities for EFLA to play a major role in both big and small scale projects locally and abroad.
Data collection using process historians and data analysis are an important factor in enabling operation traceability and quality assurance in plants. This real-time information can be used to process optimization.
Services include:
- Functional and process requirement documents
- Control system design and tender documents
- DCS, PLC and SCADA programming
- Commissioning, training and maintenance support
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