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Case Study

Hymec Aerospace uses Solar PV and has two EVCSs

HYMEC Aerospace (UK)

  • Solar PV
  • Total yr. 1 savings C. £16,242
  • 25 year benefit C. £1,597,383
  • Electric Vehicle Charge Points

The Client

Established in 1978, Hymec Aerospace Manufacturing Group is considered to be one of the most progressive engineering groups within their industry.

The company has attained a formidable record for extensive manufacturing experience covering the
production of precision machined components, sheet metal and structural assemblies for incorporation into all types of industries – aerospace, defence, medical and telecommunications.

The company has continuously grown with the demand for its services, backed by a highly skilled workforce and experienced management team, striving to provide an exemplary service to their customers, whilst minimising non value-added activity.

Hymec Aerospace is a member of Plymouth Manufacturing Group.

The Challenge

Late in 2018 IU Energy was requested to quote for the supply and installation of a 157.41kW Solar PV system onto the 3 South West facing roof areas of the Hymec Aerospace building in Plymouth.

The system was to be in accordance with Distribution Network Operator (DNO) supplier requirements, including connections and permits.

The Solution

The complete system consisted of 583 x BYD 270W polycrystalline modules, connected to 3 x Solis inverters, along with all the required electrical accessories (including generation meter, DC/AC Isolators), mounted onto a S:Flex Mounting system.

The S:Flex Mounting system is designed by its manufacturer to clamp straight onto the profile of trapezoidal roof sheets in order to provide resistance to wind loadings. The layout was also designed to ensure that skylights remained uncovered.

Each roof array was connected to its own inverter, which was mounted outside the mains electrical room on a purpose-built mount to ensure the maximum airflow for cooling. A generation meter was also installed.

Electric Vehicle Charging Stations (EVCSs)

Hymec Aerospace also became an early adopter of workplace EVCSs. Subsequent to our installation of Solar PV, IU Energy fitted two charging points. Citing their increasing number of employees who are purchasing EVs as a reason for piloting a scheme, Hymec also wished to offer this facility as a courtesy to visiting customers.

The initial EVCP installation was completed in such a way that additional charge points can be added at a later date.

The Results

The entire system was delivered on-time for Hymec Aerospace, within budget and without drama.

Based on current rate of £0.12/kWh with 10% inflation applied p.a, the following benefits are predicted –

  • Estimated annual savings on electricity bill  – £16,242.32
  • Predicted 25 year benefit – £1,597,383.92 

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