

Drone thermography is an unrivalled method for inspecting solar farm arrays to identify faults in the photovoltaic cells, and target panels for repairs. This technique forms an integral part of a wider maintenance programme, ensuring that solar farms across the country are able to function at their optimal capacity.
Above: Drone Thermographic Solar Farm Survey in action.
Thermographic Methodology
A drone is flown across each solar array at low-altitude, recording sequential thermal video and standard RGB video. Each frame can be analysed by an independent thermographer to identify hot and cold spots in the cells which indicate faults in the panels, likely impacting the efficiency of the solar farm.
Various colour palettes can be applied to the thermographic video, and the temperature parameters can be adjusted to help isolate anomalies in the solar panels.

Above: Solar farm awaiting a drone inspection.
In addition to the thermographic video, standard RGB video and site photos are captured. This provides essential information regarding the conditions of the panels and site on the day of the survey.
The RGB video supports the thermographic data by offering a visual of the surface of the panels which, from the thermal data only, may easily be misconstrued. Bird droppings, for example, may appear as anomalous features in the thermographic dataset and, while impacting the efficiency of the cells and posing a long-term risk of damage, may require a simple cleanup rather than technical repairs to the hardware.
The combined thermographic and RGB datasets will contribute to a report, detailing which cells require maintenance.

Above: Site photo of a largescale solar farm.
The survey is carried out between April and October when solar irradiance is at a suitably high level. A solar irradiance monitor is used prior to and following each flight, and the reading is documented in the flight record.

Above: A frame captured from the sequential thermal video with several hotspots identified.
Drone Capabilities
With the capacity to survey largescale solar farms in considerably short time, a drone thermographic survey is a highly efficient and cost-effective approach within that solar farm’s maintenance programme.

Above: Small solar farm following a UAS thermographic survey.
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How accurate is SUMO's underground utility survey and what types of utilities can it locate?Using cutting-edge technologies like electro-magnetics, signal induced threading, and Ground-Penetrating Radar (GPR), our underground utility surveys accurately detect a wide array of buried utilities including metal and plastic pipes, drainage systems, electricity cables, telecoms, and fiber optic cables. The methodology ensures high accuracy without the need for invasive trial holes.
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What is the turnaround time for obtaining results with SUMO's Underground Utility Detection service?SUMO’s service is built for rapid response. Contractors can receive immediate results onsite. Our equipment provides real-time information, and once we leave the site, the detected utilities are visibly marked on the ground surface for quick reference.
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Does SUMO provide detailed mapping of the detected utilities for permanent records or construction purposes?Absolutely, SUMO not only marks the detected utilities on-site but also offers high-quality, color-coded survey drawings. These drawings can include topographic features and a comprehensive record of the utility detection survey, ensuring it meets the client’s needs for future reference or pre-construction design works.
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Topographical and Geophysical surveyIn addition to mapping out utilities, our experience team can accurately survey the land, creating topographical drawings for use. With our state-of-the-art aerial technology, nothing is missed.
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What additional information can be included in the underground utility mapping service provided by SUMO?In addition to topographic features, SUMO’s mapping service can include fixed surface utility features such as inspection chambers, valve boxes, and telegraph poles. It can also incorporate key topographic details like building lines, fence lines, kerb lines, street furniture, street names, building names, and house numbers, facilitating easy site location.
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Does the utility mapping service by SUMO include standard referencing and compatibility with existing survey data?Yes, SUMO ensures the utility mapping references the ordnance survey grid and level datum as standard. Additionally, the drawings can be supplied to a specified grid and level datum and can overlay an existing topographical survey, making it a versatile and adaptable service for various project needs.
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What sets SUMO Services apart from other survey providers?SUMO stands out due to our impeccable level of service with nationwide coverage, state-of-the-art equipment, and our commitment to delivering top-quality, detailed colour-coded survey drawings in both hard and electronic formats.
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How do I request a survey quotation from SUMO Services?Requesting a quotation is easy. Just click on the "Request a Survey Quotation" button on this page, and our team will get in touch with you promptly.
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Can I book a SUMO Survey online?Yes, you can! Simply click on the "Book a SUMO Survey" button on this page, and you can schedule your survey with us at your convenience.
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What type of survey is suitable for my project or site?Our experienced team will work with you to determine the most appropriate survey for your specific needs. Contact us, and we'll assist you in making the right choice.
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Can I obtain both digital and hard copies of survey drawings?Absolutely. We offer the convenience of electronic copies for digital use and hard copies for your records. Just let us know your preference.
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Do you provide custom survey solutions for unique projects?Yes, we understand that every project is unique. Our team is highly adaptable and can tailor our surveying services to meet your specific requirements.
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How do I get in touch with SUMO Services for further questions?For any additional questions or inquiries, feel free to contact us through the contact form, and our dedicated team will assist you promptly.