La Print 3D It has fully infiltrated the energy sector And it's no longer just about curious prototypes or home-printed "toys." We're talking about a technology that is changing the way we design turbines, solar panels, oil and gas equipment, green hydrogen solutions, and even advanced CO2 capture systems. All with one clear objective: reduce costs, gain efficiency and move towards a more sustainable energy model.
With the pressure of climate change, dwindling fossil fuels, and increasingly stringent regulations, energy companies are looking for any competitive advantage. Additive manufacturing offers something that traditional methods cannot match: total design freedom, on-demand manufacturing, and much more flexible supply chainsLet's take a look, calmly but directly, at how this technology is already being used and where it's all headed.
What does 3D printing really bring to the energy sector?
When we talk about 3D printing, or additive manufacturing, we are referring to a set of processes that They build pieces by adding material layer by layer. starting from a CAD model. Unlike traditional machining or molding, where you start from a block or a mold, here only the necessary material is deposited with millimeter precision.
The energy sector is critical because It supports a large part of economic activity and daily life.Industry, households, transportation, and, to a large extent, social stability depend on its reliability. At the same time, it is one of the largest emitters of greenhouse gases, so the pressure to decarbonize is enormous. In this context, Additive manufacturing is positioning itself as a key lever to accelerate the transition to renewables. without compromising security of supply.
The great advantage of 3D printing is that It allows the creation of custom components, with geometries that were previously impossible to manufacture.reducing the development time for new solutions and producing spare parts remotely in record time. All of this helps to reduce supply chain risk, minimize downtime and cut costs operations and maintenance.
Rapid prototypes, production parts and spare parts on demand
In the development of energy equipment, prototypes are an everyday occurrence: conceptual mock-ups, functional scale models, iterative versions of the same designPreviously, handmade models or manufactured molds (often by external suppliers) were used, with lead times of weeks or months and very high costs.
With 3D printing, that development cycle is radically compressedEngineers can design a part, print it in hours or a few days, validate it, correct it, and repeat the process. This translates into More iterations in less time, better early detection of design errors and a faster time to market, something especially valuable in emerging technologies such as hydrogen, offshore wind or new generations of solar panels.
An illustrative example is the project Stones, the ultra-deepwater oil and gas field in the Gulf of MexicoIt operates at a depth of almost 2.900 meters and requires a complex underwater infrastructure to transport hydrocarbons to a floating production, storage and offloading (FPSO) vessel. 3D printing made it possible to create physical prototypes of the system that connects the FPSO to the seabed pipelines, facilitating the demonstration of the concept to the US regulatory authorities, who had to authorize this type of solution for the first time in the region.
But it's no longer just prototypes. They are now starting to be manufactured in the energy sector. high-value and highly complex final piecesNozzles and gas turbine components, impellers, pistons, pumps, rotors, control valve elements, flow meters, heat exchangers, pressure gauges, and more. In these cases, Metal additive manufacturing (SLM, DMLS, etc.) is the main focusbecause we are talking about high-pressure environments, extreme temperatures, and very strict safety requirements.
To date, Only a fraction of 3D-printed components are approved for critical use in power generation, nuclear power, or large oil and gas facilities. The reason is obvious: a failure can have a catastrophic impact on people, wildlife, and the environment. Companies and regulatory bodies They are very cautious when it comes to replacing classic methods with new ones.However, as they consolidate specific standards As success stories accumulate, this barrier gradually decreases.
In operations and maintenance, 3D printing is proving to be a cost-saving measure. In the oil and gas sector, it is estimated that A 1% annual downtime can cost millionsAnd on offshore platforms, we're talking about almost a month of unplanned downtime per year, with losses in the tens of millions. Approximately half of that downtime is associated with hardware failures or malfunctions.
Traditionally, the solution was to maintain large spare parts warehouses, with tied-up capital and considerable logistical costs. Additive manufacturing allows for a different approach: reliable parts printed on demand, near the asset or even on-site, without the need for giant stocks, without minimum orders and without redesigning obsolete components from scratch.
With 3D scanning and reverse engineering it is possible digitize and recreate discontinued components, redesign them for additive manufacturing and produce them when needed. Often, lighter parts are obtained, with internal channels optimized for cooling or flow, and performance superior to the originalreducing costs in time, materials, and labor.
Green Hydrogen and Direct Ink Writing: From Mining Waste to Electrode
One of the most interesting lines of inquiry is the use of 3D printing to produce green hydrogen and ammoniaIn Chile, at the Federico Santa María Technical University (USM), a team led by Professor Claudio Aguilar is working with the technology Direct Ink Writing (DIW), integrated into a PowerDIW system developed by CIM UPC.
This technology is based on extrusion of highly viscous pastes, loaded with solid particleswhich are deposited layer by layer to create functional 3D objects. The great advantage is that It allows printing materials that could not be processed using conventional methods., including ceramics, metals, biomaterials and polymers, with high particle loads.
In this case, the USM group uses waste from large-scale mining, such as copper slag, to manufacture electrodes capable of producing green hydrogen and ammonia. From this waste, they recover elements such as iron, silicon, or molybdenum and transform them into high-performance materials for electrocatalysisAccording to Aguilar, the electrodes obtained are not only much cheaper, but also more efficient than those that use noble metals such as platinum or rutheniumexpensive and scarce.
The PowerDIW printer has become a central tool in the lab because It allows you to adjust the formulation of the pastes at will....varying the particle load according to the project's needs. That opens the door to experiment with new advanced materials and processes, not only for energy, but also for sectors such as health (prosthesis prototypes and biomaterials), mining and the manufacture of small-scale turbine blades.
Among the most valued features of the PowerDIW system are the high extrusion force, multi-material capability, and robustness of the machineall at a relatively low cost. The group's plan involves acquiring another unit to further explore multi-material combinations, such as High-entropy alloys combined with copper for high-performance electrical contactors.
DIW technology itself presents itself as a very versatile solution for health and biotechnology, electronics and energy, manufacturing, pharmaceuticals and chemicalsFrom printing tissues and medical devices to sensors, fuel cells, ceramic components and microreactorsThe range of applications continues to expand thanks to its modular design and the possibility of customizing the printhead and system functionalities.
Renewable energy transition and new designs for solar, wind and storage
The shift towards an energy model based on renewables requires reduce costs, increase efficiency and shorten deployment timesThat's where 3D printing fits like a glove, because it allows both the development of complex prototypes at low cost and the manufacture of certain optimized final components.
Two major avenues are being explored in solar energy. On the one hand, the application of 3D-printed semiconducting inks on ultrathin wafersFormulations based, for example, on mixtures of boron and polysilicon are used, which are deposited with great precision onto cells only about 200 microns thick. The result is a larger effective contact surface and, therefore, an increase in conversion efficiencywith improvements of around 20% and, moreover, with lower costs.
On the other hand, there are companies that are betting on volumetric 3D printing processes for manufacturing advanced solar panelsThese techniques allow curing an entire volume of material at once, without going layer by layer, which It greatly accelerates manufacturing and reduces the unit cost.The goal is to make solar electricity more accessible on a global scale.
Another key line is that of the new generation solar cells, such as perovskite cellsBy 3D printing scaffold-like structures with optimized geometry, it is possible to create absorbent layers with improved optical and electrical propertiesto reduce charge carrier recombination and improve light management. Work is underway on thin films with complex 3D structures that overcome the limitations of traditional silicon wafers, both in cost and environmental impact.
Beyond cells, additive manufacturing also helps to improve electrical connections, interconnectors, substrates and structural elements of the modules, precisely adjusting internal geometries, porosity, or surface roughness. All of this contributes to higher performance and longer lifespan of the panels.
In wind energy, 3D printing has been present since the prototyping phase of blades and components up to the manufacture of large-format molds and, in some projects, even the production of complete structural sections. Techniques such as FDM and SLS are commonly used for prototypes and small or medium-sized parts, while DMLS or DLMS are used for highly precise metal components in gondolas, transmission systems, brakes or bearings.
Companies like Siemens Gamesa or Vestas have already integrated metal 3D printing to manufacture and optimize certain elements of its turbinesIn parallel, developments are underway large format printers, such as the one promoted by the University of Maine, aimed at to manufacture full-size molds for shovels using biopolymers more economical and potentially recyclable.
The startup Orbital Composites, for example, is working with 3D printing robots to produce wind turbine blades and structures on site, even considering manufacturing at sea aboard ships. Their goal is overcoming current logistical limitations (in countries like the United States, transportation limits the length of the blades to about 53-62 meters) and allow turbines with blades longer than 100 meters to be produced directly where they will operate.
Furthermore, they are transforming waste from old shovels in new printable materials, closing the loop and addressing one of the sector's major problems: the recycling of fiberglass-reinforced composites. The use of 3D printing allows for the creation lightweight and complex structures which reduce the overall weight of the turbine and improve its aerodynamic performance.
In energy storage, additive manufacturing enables the development of Batteries and supercapacitors with unconventional geometriesInstead of being limited to cylindrical or prismatic formats, they are exploring Custom designs that integrate better into portable devices, vehicles, or industrial equipment, taking advantage of internal 3D structures that increase the active surface area and improve energy or power density.
3D printing is also being used to produce fuel cells and electrolyzersboth proton exchange membrane (PEM) and solid oxide (SOC) deposits. The ability to deposit thin layers of electrolytes, functional electrodes, and catalysts with graded compositions It allows for optimized cell performance. Advances in stereolithography and DLP for ionic conductive ceramics They open the door to more complex and compact designs, bringing the next generation of high-efficiency devices closer.
3D printing in fossil fuels and carbon capture
Although the priority is to move towards renewables, fossil fuels still play a significant role, and 3D printing is also helping to reduce its environmental impact and improve efficiencyIn drilling equipment, for example, additive manufacturing allows design lighter, stronger components adapted to extreme conditionsThis reduces energy consumption and improves safety.
The possibility of manufacturing custom parts and complex internal channels It facilitates the cooling, lubrication, and structural behavior of critical tools, minimizing the risk of catastrophic failures. Furthermore, many advanced operations are relying on it. recyclable or more sustainable materialsreducing the global carbon footprint of drilling activity.
In carbon capture (CC), one of the main challenges is reduce the energy consumption of the processLiquid solvent-based systems, although mature, suffer from corrosion problems, low CO2 capacity, and the need for intense cooling to manage the exothermic reaction between the gas and the absorbent.
Additive manufacturing offers the possibility of designing heat exchangers and reactors with extremely complex internal geometriesimpossible to achieve with conventional methods. Thanks to this, it is possible Optimize inter-stage cooling, improve heat transfer, and increase capture efficiency keeping the absorber within an optimal temperature range.
By integrating thermal and process functions into a single unit, the number of components is reduced, losses are minimized, and the overall efficiency of capture systems is improved, which It reduces the cost of decarbonizing large industrial facilities.
Technical, regulatory and scaling challenges in additive manufacturing
Of course, it's not all advantages. One of the main obstacles remains the availability and behavior of the materialsMany 3D printing processes work primarily with polymers or resins, while the energy sector typically requires high-strength metals, advanced alloys, structural ceramics, or materials with very specific electrical and thermal properties.
In applications such as solar cells, fuel cells, or nuclear components, they are needed finely tuned properties of conductivity, thermal stability, mechanical strength and durabilityAlthough metal and ceramic solutions already exist, many combinations still need to be validated, and the certification of new materials and printing parameters It's neither fast nor cheap.
Another problem is the scaling up of productionFor short runs or very complex parts, 3D printing is very competitive, but When we talk about mass production of simple components, cost and speed don't always compete with traditional manufacturing.Large-volume machines are also often limited to certain sizes and materials, which complicates their use in large-scale energy projects.
The quality of the pieces themselves may vary if Process parameters and environmental conditions are not rigorously controlledWithout clear standardization, it is difficult to guarantee that a part printed in one plant meets the same specifications as one manufactured on another continent, using a different machine or even a different version of software.
Added to this are regulatory and environmental concernsThe intensive use of certain plastics, the emission of ultrafine particles in some processes, or the electricity consumption of certain advanced printers can clash with sustainability goals if not managed properly. That's why interest is growing in bio-based, biodegradable materials and processes with high reuse of powder or raw materials.
The issue of Intellectual property and cybersecurity Nor is it insignificant. By transferring the value of the physical object to the design file, new risks arise: unauthorized copies, manipulated designs, or prints made without adhering to the original specifications. In critical sectors like energy, a pirated or poorly printed component could have serious consequences. This can become a significant safety and legal liability issue.
Eco-friendly materials and carbon footprint reduction in 3D printing
Alongside all these applications, the so-called “Green” 3D printingfocused on materials and processes with a lower environmental impact. A good example is the bio-based nylon PA11, derived from castor oil. This crop It does not compete with the food chain, it makes use of marginal lands, and it requires less water., which reduces its environmental footprint compared to petroleum-derived thermoplastics.
In processes such as HP Multi Jet Fusion, the PA11 can to be reused very efficientlyminimizing unmelted powder waste. In addition to its sustainable profile, it offers good mechanical strength, flexibility and high chemical resistanceThis makes it interesting for housings, conduits, and components subjected to moderate stress within energy equipment.
Another striking material is ECOtech, a biodegradable polymer certified according to DIN EN ISO 14855It combines mechanical properties comparable to those of certain conventional thermoplastics with the ability to degrade in a controlled manner under appropriate conditions, which helps to reduce plastic waste in the long term.
Notable improvements have also been made in materials such as PA12, glass-filled PA12, PP, white PA12 or TPUFor example, some grades of PA12 have achieved a reduction of almost 50% of its carbon footprint thanks to the use of renewable energy in its production and higher dust reuse rates.
In fact, going from 50% to 80% reuse of powder In certain processes, the carbon footprint of a part can be reduced by up to 70%. In the case of PP, the following are used: reuse rates close to 90%This further reduces the impact associated with the material and the energy consumed in the printing phase.
3D printing also allows radically optimize the designsLighter parts, consolidation of several components into one, strategic internal geometries. All of this translates into less material, less weight, less energy to manufacture, transport and operateThere are real cases where redesigning a part using additive manufacturing has meant reductions of 38% in CO2 emissions, 95% in costs and 90% in weight compared to the traditional version.
If you add to this the local or even on-site productionLogistics routes and transport-related emissions are reduced, which is especially valuable in the deployment of renewable infrastructure in remote or hard-to-reach areas.
Innovation, collaboration and the role of governments and industry
The evolution of 3D printing in energy goes hand in hand with advances in materials, printing techniques, and design softwareThe incorporation of advanced metals, high-performance ceramics, and multi-material composites expands the range of possible applications in turbomachinery, reactors, nuclear components, storage devices, and offshore structures.
Multi-material printing, for its part, allows combine different areas with different properties into a single pieceConductive and insulating, rigid and flexible, corrosion-resistant on one side and thermally optimized on the other. This capability is very interesting for integrated sensors, smart structural components and “connected” energy equipment.
By combining additive manufacturing with other emerging technologies such as artificial intelligence, augmented/virtual reality, collaborative robotics or the Internet of ThingsThis opens the door to very powerful workflows. AI algorithms can optimize designs and printing parametersAR and VR facilitate the inspection and validation of models; robotics allows automate large-scale printing cellsAnd IoT helps to monitor the performance of the components already installed, closing the design cycle.
The collaborations between universities, technology centers, industrial companies and printing equipment manufacturers They are proving key. Projects funded by public bodies, such as ministries of economy or energy efficiency agencies, and by national laboratories such as ORNL or the DOE in the United States, They are accelerating the development of large-format molds, printed concrete structures, anchors for offshore wind turbines, and new tools for rotor blades..
In Europe, funds are also allocated to initiatives for Print giant sand molds for gondola componentsshortening manufacturing times from weeks to just a few days and reducing the carbon footprint by producing closer to the installation site. Projects like ACC and Winddruck explore How to reduce the cost and make the large-scale manufacture of wind turbine blades more sustainablewith a view to using renewable and recyclable materials.
Governments, for their part, can play a decisive role through R&D programs, tax incentives and clear regulatory frameworks that facilitate the certification of printed components for critical use. Establishing internationally aligned quality standards and norms is essential for Companies feel confident adopting these technologies in key energy infrastructure.
The rise of 3D printing in energy is not a passing fad: it responds to very specific needs for efficiency, sustainability, speed and resilience of the supply chainFrom complete wind turbines designed and printed in one piece for wind tunnel testing to hybrid wind turbines with integrated photovoltaic panels developed in Spain, to on-demand spare parts supply networks on offshore platforms, Real-world examples are multiplying and showing that the leap is already underway.
In this context, the companies that will be best positioned in the coming years will be those that know integrate additive manufacturing into its energy strategyBy carefully selecting processes and materials, collaborating with technology partners, investing in advanced design, and committing to increasingly sustainable materials and methods, 3D printing is not replacing all traditional manufacturing at once, but it is becoming a key player in the industry. a key piece of the new global energy puzzle.
