Ground Source Heat Pump Case Study

Customer Quotation: Vailliant Ground Source Heat Pump 12kW

Schedule of proposed works:To supply and install: Vailliant Ground Source Heat Pump 12kW

All electrical installation will be included that is needed to install all product safely & to comply with IEE Wiring Regulations 17th Edition.

All plumbing will be carried out to water & unvented/vented cylinder requirements.

We will remove all waste materials associated with the work from site prior to handover.

We will also under take the full testing & commissioning of the entire boiler installation ourselves with the up most care; we use no outside contractors & hold all the relevant MCS accreditation to install the units so that you will qualify for the RHI 7 year payment scheme.

Full demonstration will be given to yourselves on handover on how to operate and get the best of the installation along with the handover customer guide.

There is currently an RHPP grant of £1300 off the cost of an Air Source Heat Pump installation which can be registered for. You will be able to receive the 7 year RHI scheme which is an “earn while you burn” government heating incentive as our technology is MCS compliant. The reason such financially appealing subsides are in place is to encourage the use of carbon neutral, clean heating technologies in the aim to reduce emissions to hit our 2020 Kyoto Treaty target of 15% of energy in the UK coming from a renewable source

Aim of system –

To reduce running costs by 60-70% on current Oil bill – £1,250 PA. This is by partnering GSHP and Solar PV panels.


Year

RHI

Cur Annual Running Cost

New Annual Running Cost

Net Fuel Savings

Annual Gain

Net Gain

0

-

-

-

-

-

£-20,000

1

£3,615

£1,250

£615

£635

£4,250

£-16,852

2

£3,760

£1,363

£670

£693

£4,453

£-13,267

3

£3,910

£1,486

£730

£756

£4,666

£-9,203

4

£4,066

£1,620

£796

£824

£4,890

£-4,615

5

£4,229

£1,766

£868

£898

£5,127

£512

6

£4,398

£1,925

£946

£979

£5,377

£5,889

7

£4,574

£2,098

£1,031

£1,067

£5,641

£11,530

8

£0

£2,287

£1,124

£1,163

£1,163

£12,693

9

£0

£2,493

£1,225

£1,268

£1,268

£13,961

10

£0

£2,717

£1,335

£1,382

£1,382

£15,343

11

£0

£2,962

£1,455

£1,507

£1,507

£16,850

12

£0

£3,229

£1,586

£1,643

£1,643

£18,493

13

£0

£3,520

£1,729

£1,791

£1,791

£20,284

14

£0

£3,837

£1,885

£1,952

£1,952

£22,236

15

£0

£4,182

£2,055

£2,127

£2,127

£24,363

16

£0

£4,558

£2,240

£2,318

£2,318

£26,681

17

£0

£4,968

£2,442

£2,526

£2,526

£29,207

18

£0

£5,415

£2,662

£2,753

£2,753

£31,960

19

£0

£5,902

£2,902

£3,000

£3,000

£34,960

20

£0

£6,433

£3,163

£3,270

£3,270

£38,230

Total

£28,552

£64,011

£31,459

£32,552

£61,104

£38,230

This was the proposal sent to the customer prior to installation. You can try your own domestic heat incentive calculator here

The installation has now been in for 1 year so we asked for a running cost from the customer which reported than the running cost of the house was actually £480 approximately in comparison to our estimate of £615.

This running cost was the increased cost of electricity that the customer had paid instead of an oil bill.

The savings on his fuel bill were so high due to a massive percentage of 68% of the heat used to provide the 16,000 kWH was taken directly from the heat in the ground itself.

This year our customer is also going to benefit from the government’s RHI payments due to be launched April 2014. This is a 7 year payment scheme introduced to provide a financial incentive for people to switch from fossil fuels, to clean heating technologies, such as Biomass, Air Source Heat Pumps, Solar Thermal, and Ground Source Heat Pumps.

As our customer also installed Solar Photovoltaic’s (panels to create electricity) he is now also benefitting from free daytime electricity to run his ground source heat pump, which he also gets paid to produce for 20 years – YES even though he uses it to run the pump, he STILL gets paid!

 

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