a savings promise


All our optimisation proposals come with a guaranteed savings promise, in which if we fail to meet the savings promise we make we cash-back guarantee the difference in loss of your ROI.

Firstly we verify the savings promises we make.

Savings from all Powerstar systems are 100% guaranteed.

A thorough and independently analysis (based upon IPMVP) is carried out internally via the steps below to provide clients with an accurate verification of savings achieved:

  • Step 1 Compares 28 days pre install kWh data with 28 days post install kWh data.
  • Step 2 Compares 28 days post install kWh data with the same dates a year previous (pre install).
  • Step 3 Compares 84 days (12 weeks) post install kWh data with the same dates a year previous (pre install).
  • Step 4 This involves a regression analysis. An accurate model is created based upon pre install kWh consumption data and variables such as the temperature.

100% savings guarantee


Following the analysis, if savings achieved are less than stated in the proposal, the shortfall in terms of ROI based on p/ kWh used in the proposal will be calculated.

This figure is multiplied by the payback period as stated in the proposal and issued as a one-off payment.

GUARANTEE  example

Proposal states 10% saving worth £15,000 pa giving a payback of 2.8 years.

Actual energy savings achieved = 8% worth £12,000

Shortfall = £3,000

We issue a 1 x off payment to the client of £3,000 x 2.8 = £8,400 so the return on investment is therefore guaranteed.

With over 7 thousand installations worldwide and no recorded equipment failures, this is a technology you can trust to deliver significant savings with very low financial risk, if this technology is appropriate to your business it will fall into the “NO Brainer” capital projects pot.


Call for a free feasibility survey you have nothing to loose.




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