Latest News March 2019

System Inspection

working with Future Aerial Solutions LHW have completed a comprehensive investigation into the performance of a llarge 3MWp roof mounted PV system on a manufacturing plant in Oxfordshire. The work involved PID testing, Infra Red, IV Testing, shade analysis.

4 years CAA Drone approval

LHW have been CAA approved for Drone operations for 4 years, and have added a 20m approval and working towards tethered approval for residential iinspections within 10m from roads.


LHW have the equipment to undertake Electroluninescence testing by hand, pole mount , vehicle or drone due to 2 levels anti vibration on gimbal and camera.

Latest News Febuary 2019

Off Grid PV / Battery

LHW have successfully completed challenging electrcial & heating assignment to provide low carbon energy in a remote Cotswold location. The system includes a 2kWp 8kWh/Generator system that also provides solar hot water in the summer.

System Healthcheck

LHW replaced 2 PV modules, and undertook a suite of healthcheck tests including IV curve, Riso, Shunt reistance, Shading, Electroluminescence. Infra Red (PV & Building heat loss) on the Cricket Club at Great Brickhill owned by the Parish Council. 


LHW have been working with Cobalt Energy providing Electro luminecsent testing services.

Latest News January 2019

Commercial Building IR

LHW have successfully completed an external building thermographic survey on 25 Commercial Buildings with an age span of 50 years. The results looked at average heat loss on building faces, and will enable the lient to priorities the iimplementation energy saving measures 

PV Farm Re-Powering

Working with Cobalt Energy, LHW have provided Technical Advisory on repowering 4 of first UK 5MW PV farms. The work involved HV, AC, DC asset review, shade analysis, energy collection strategy, complex modelling and technical & Commercial appraisals and recommendations for improvement.

State of Art PV Module & String Testing

To further supplement our capability in diagnostic testing, we have added the Emazys E200 PV Analyser to our existing PV test equipment portfolio. The Z200 can detect fault location on PV strings, DC shunt resistance, and a number of other functions.

Off Grid Emergency Feasibility

LHW have provided Off Grid technical advisory services to help repower a remote location after a cable fault isolated the  location from the island grid

Zero Subsidy PV Farm Feasibiltiy

LHW  have completed a comprehensive feasibility for a County Council looking at a PV farm and "sleeving" to provde energy to the building portfolio in the county

Drones for Energy . University of Nottingham

LHW are presenting  in a Seminar covering the use of drones in energy-related applications Come along to this afternoon workshop to find how drones can help your business highlight inefficiency, improve the operation and maintenance of assets and help lower costs.

Autumn 2018 News

November 2018

LHW have successfully tendered and secured building infra red heat loss diagnostic inspection services for over 25 large commercial properties in the London Area.


The work will be carried out in November/December when the external temperature is lowest, and the building heating systems operational, enabling maximum identification of potential heat loss

October 2018

LHW have successfully trialled an innovative way to accureately undertake Infra Red PV module testing at ground level without grading of the higher modules or bright sunlight making it hard to see the screen. 


The additional height was gained by a telescopic pole, and anomaly identification gained by OLED HDMI goggles, which enable a GPS embedded visual & IR image outlining the anomaly with more granularity, clarity and bright sunlight is not an issue.

October 2018

LHW have provided Due Diligence Verification to a major UK water Utility on 5 project locations to review current and projected renewable energy usage to review performance against the investment model.


The projects involved PV, wind & PV hybrids and CHP, and reviewed the performance in line with the use of system time bands which were differing for the 2 network operators the projects were located.

October 2018

Working with Flying Bear Aerial, LHW have undertaken internal and external aerial imagery and video of Malmesbury Abbey, the resting place of the Saxon King Athelstone, acknowledged to be the first King of England.


The abbey is in the town centre, and use of the CAA 20 metre permission was required as within 50metres of the high street.


LHW have undertaken IV Sweep, Riso, Infra Red, Electro luminescence,  and Ultra Violet testing on a range of PV systems from roof mount to ground mount. In all over 100MWp of inspection, analysis and reporting was undertaken. This included the largest roof top PV array in the UK with 24,000 PV modules, which necessitated close liaison with Network Rail and East Midlands airport. 

October 2018

LHW were invited to provide aerial images of Heath & Reach, the home village of LHW for the new websites of the Village Hall and the Parish Council website.

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