Benefits:

• Energy savings = 3.4m kWhr/pa

• Energy cost savings =  £205,000

• Emissions reduction = 1,700 te CO2

• Simple pay back typically = 1. 3 >1.7 years

Facility: Large laboratory Facility spread over 5 blocks – originally designed as ICI’s R & D Facility

Issue: Old HVAC plant serving a very large number of face & bypass fume cupboards

Brief: Reduce energy demand without compromising on operator safety

Solution:

• Upgrade supply units with control & filtration upgrades

• Retrofit VAV to the existing fume cupboards

• Install pressure controllers to each laboratory

• Initiate fume cupboard diversity into each laboratory

• Strip out all the primary extract fans & upgrade secondary fans with VSD’s

• Installation of energy monitoring units to verify savings & act as MM&T capability

Conclusion: EECO2 – Phased upgrade over 3 years = carried out complete system redesign, scope & bid proposal on Clients behalf, laboratory user interphase & programming.  Provided Project Management for Contractors – delivered to budget, on time with 0 accidents or incidents

Site Energy Manager Comments:

We have just read the electricity meters in R Block for April, & I thought you might be interested to see the effect of the ventilation modifications which we have carried out. Basically, you can see that a monthly figure of around 120 MWhr has reduced to around 70 MWhr, which is a very significant reduction.

When we also compare total steam use for the whole Wilton Centre for 2009 with 2008, where we see a reduction of 9.5%, & some of this will be due to the similar work we did in T Block.

It is our intention to now carry out similar modifications in D, N & E Blocks.

Richard Short

Site Utilities Manager