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.

Latest News June 2020

Zero Carbon Homes

As part of a team, LHW have been working closely with a number of experts looking at on /offsite site electrical and heat generation to determine optimal solution for zero carbon new build home construction. LHW are doing the PV/battery/wind/Heat pump, site demand modelling.

Reverse Engineering

LHW were engaged to reverse engineer a totally unlabelled PV system, and identify the reasons for poor performance. This involved IV curve, Series resistance, module/string mapping, performance testing and production of drawings.

Heat Pump Feasibility

Following successful PV installation of 75kWp, a local authority engaged LHW to undertake a feasibility for adoption of heat pumps at a large 85 bed education and outdoor centre. This included IR verified heat loss, and full review of ASHP, Borehole and Ground collector systems.

Latest News May 2020

Professional Recognition

After 35 years in the Energy and Electricity industry The Founder of LHW has been elected as a Fellow of the IET and the Energy Institute

System Modelling

In April LHW have undertaken PV verification modelling for over 500MWp of solar PV projects in South and North America and Europe.

IR Surveys

Though PV Farm IR surveys are not core business, LHW offer this service as part of a more integrated offering involving electrical testing at ground level. This encompasses IV Curve, Series, Shunt and Riso, as well as EL.and system performance verification.

Latest News April 2020

Technical Training - PV analysis

LHW have been engaged by a forward thinking Asset owner & their O&M provider to provide technical training on PV testing methodologies used to help root cause analysis of PV system underperformance.

PV System modelling

In a month when travel was challenging, LHW were engaged and completed over 30 PV simulation models for clients ranging from 30kWp to over 300MWp, including roof top, and ground mount in locations from Columbia, Ireland, Lake District and a pan national warehouse portfolio. In all over 400 MWp of projects were modelled.

Building Heat Loss Surveys

In March, LHW undertook a number of building heat loss surveys in the City of London, and elsewhere. The work resulted in a development of a system modelling tool for pragmatic determination of building "U" values of ageing building stock, fundamentally important for heating system improvement.

Latest News March 2020

PV Installation Site Acceptance services

LHW is providing Technical Advisory services and Siite Acceptance inspection and reporting for a London Community Energy organisation and one of the UK's largest County Councils for nine PV rooftop and ground mount installations comprising over 500kWp of installed capacity

NHS Trust PV Feasibility

LHW have completed a detailed feasibility assignment for two NHS Trust Hospitals in England reviewing a range of options including rooft top and retrofit of car ports. As a large energy user the NHS is loooking at ways to energy reduce costs and CO2 emmisions in a cost effective manner.

PV System performance investigation

In the first PV farm investogation of 2020, LHW undertook a range of daylight testing on a system, identifying low shunt resistance (PID) as the probable reason for system under performance. The testing , a scientifically correct and yet not a recognised mainstream IEC testing methodology helps provide a large amount of additional information on PV system performance issues.

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