Appraisal
Understanding your building and your business enables us to specify the right solution for you. This leads to improved energy savings and a more secure power supply.

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“I found the experience of working with powerPerfector to be a very positive one, from initial enquiry through to post installation analysis. The customer care at all stages was exceptional.” Lee Allen Furby, Surveyor, Regulatory Compliance
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Appraisal

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Every building is unique. From the amount of energy it consumes and how the energy is used, each site needs a tailored solution, specific to its needs. To find this solution we carry out a detailed assessment to estimate the energy savings and provide a guaranteed business case.

We first identify that there is an energy saving opportunity for Voltage Optimisation. Through half hourly energy data, voltage logging and load analysis we determine how much we can reduce your utility bills and your carbon footprint.


Unit capacity

To start evaluating an opportunity we first need to calculate the size of unit required. The unit’s capacity needs to cover the maximum consumption of the site and allow for future growth.

To do this we need to find the maximum power demand of a site. This is detailed in half hourly energy data held by your electricity supplier, or stated on your electricity bill.

We specify a unit based on this figure, incorporating headroom of roughly 20 per cent, allowing for anomalies in energy consumption or for further expansion on site.


Unit optimisation

VPO® achieves energy savings by optimising the power supplied to a site.

In order to assess the potential benefits of VPO® to your site, we have to record and analyse the voltage. Due to various factors the voltage received by a site will fluctuate. The size of these fluctuations determines whether a standard powerPerfector unit (which optimises the site voltage by a fixed percentage) or a powerPerfector Plus unit (which provides voltage stabilisation) is the most appropriate option.

To record these fluctuations a logger is sent to site to monitor the voltage. This allows us to see the peaks, troughs and volt drop across the site. Our in-house software then analyses the voltage profile from the loggers and determines the type of powerPerfector unit which should be specified.


Load analysis

Resistive equipment such as heating elements will not see the same level of savings as inductive equipment such as motors. These differences mean that some sites are ideal candidates for VPO®, whilst others will have a reduced opportunity for energy savings.

We have developed a specialist process to ensure we accurately predict the savings achievable through VPO®, taking in to account the individual mixture of on-site electrical equipment. Information about the site’s loads is collected through a site survey process, then combined with voltage data to produce an estimated saving.

Uniquely, all of our savings projections are calibrated, because we accurately and consistently “measure” the savings after installation.

This means that our predictions are accurate and are getting better all of the time.


*The greengauge represents the aggregate savings of powerPerfector installations in the UK, Ireland, Cyprus and Denmark. Savings correct at the time of installation using either IPMVP savings analysis or reasonable estimates, where savings analysis was not possible. Actual savings may change over time for example due to energy pricing, occupancy, equipment, rates, building re-purposing and further energy efficiency measures.

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