Latest News January 2021

Water Sector                            - Techical Advisory Role

As part of a major move to decarbonise, a major water utility has appointed LHW to provide technical advisory services on the technical aspects of the implementation of thier renewable strategy.  

Footprint Zero - teaming

Having known the founder Julian Pertwee since 2010, LHW have teamed with FootprintZero to provide Technical Advisory services for their ambitious plans focusing on PV & EV project development. More Info

Ground Source Heat Pump Technical Advisor

Having completed an Energy Study in 2019, and a Tender specification in 2020, LHW are providing technical advisory services for the implementation of a large ground source heat pump at a Heritage location in Berkshire. 

Latest News December 2020

New UAV Regulation Approval 

LHW hold the new CAA A2 Certificate of Competency.  From the 31st December 2020 holding an A2 CofC will allow LHW to ‘fly closer to people’ if using a  drone of less than 2 kg. This will enable rooftop and building heat loss inspections on a mass scale, as well as aerial images previously not possible to gather.

PV yield modelling projects

In November  LHW worked on over 30 (150MWp) of PV projects from feasibility through to Expert legal review for a range of clients both in the UK and overseas. 


These included rooftop systems, large scale trackers, and fixed ground systems.  The latest software upgrade faciltates auto population of PV tracker tables as well as fixed arrays. 

Energy Strategy

Working with CLS Energy, LHW are providing a top to bottom energy strategy for a Local Authority in the Lake District. This includes a review of the Authorities future building heat and electricity needs, as well as larger scale Wind and Solar potential.

Latest News November 2020

PV, Wind , Battery , EV Station Project

LHW have been providing technical advisory services on a UK pioneering large scale PV & Wind, energy storage and EV charging station project off the A5 near Leighton Buzzard, in Bedfordshire

PV Site Inspections

LHW have provided a range of inspection services to a number of PV farms including a number of Cast Resin HV transformer inspection calling on 10 years of HV transformer manufacturing experience. Work also included roof top as well as ground mount systems.

Electroluminescence Surveys

With shorter days and getting darker earlier, LHW are now providing seasonal electroluminescence testing and inspection surveys to determine health of PV modules. This is in addition to a range of other testing services. Already offered.

Latest News October 2020

PV Transaction Inspection Due Diligence

LHW undertook transactional site review,  inspection and due diligence on 3 of the largest PV farms in the UK totalling 100MWp.


The work covered from DC through to 132kV connectioon, and included a focus on some areas not normally investigated.


The projects were successfully acquired by Greencoat Capital in October.

Tender Review Off Grid System Seychelles

Having completed a technical specification earlier in 2020, tender returns were reviewed and  for a large 1.6MWp grid connected / diesel hybrid PV system located in the Seychelles.

PV System performance investigation

LHW undertook testing on a number of installations that were suspected of underperfoming. The tests involved both string and module level testing, and provided very conclusive trends and results to affirm the issues. 


A number of tests were undertaken, and Electroluminescent testing will be undertaken at a later date.

Latest News September 2020

Granular PV Modelling

Working with Above Surveying, LHW are undertaking detailed PV modelling with UAV/Drone topology capture to verify PR calculations, and detailed feasibility and design PV modelling work.

Niche O&M

Since 2013 LHW have been providing niche O&M servies to the Crystal Building in Docklands. Owned by the GLA, this building is rumoured to be the next GLA assembly building. 

Power Quality Testing

After a 30 year gap, LHW have added load bank testing to the range of testing services in its portfolio,

Latest News July 2020

PV Technical Workgroup

LHW are now on the MCS PV technical workgroup, this facilitates current work with ENA, and a core belief to progress technical standards in line with market evolution.

Test equipment investment

As part of policy of having the right test  equipment necessary, LHW have invested in a power quality analyser, and upgraded to latest handheld IR equipment to allow GPS and wifi, in addition to exisitng PV modelling test equipment and DC power supply & EL camera. This wil help renewable & energy efficiency aspects of business.

PV - Wind Hybrids

LHW are providing Technical advisory services on a number of large scale  PV-Wind hybrid projects both in UK and overseas.

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