Frequently Asked Questions
Frequently Asked Questions -- Power generation
Qu: What type of turbines will be used?
Ans: Micro Hydro-electric Powerpal T16 Turgo generators.
Qu: How many turbines?
Qu: Will the turbines be installed in a secure building?
Qu: How is the turbine house constructed?
Ans: Stone with a slate roof.
Qu: What is the operating life span for the turbines?
Ans: 40 years.
Qu: What is the efficiency of the total installation?
Qu: Is the efficiency different at lower flows through the turbines?
Qu: Where will the meters be installed?
Ans: In the turbine house.
Qu: How much electricity will be generated per year?
Ans: 145 Mwh.
Qu: How will the electricity be distributed?
Ans: Sold to the National grid.
Qu: What level of noise will be created at intake, turbine house, Grid connections?
Ans: Barely audible.
Qu: How will the electricity be fed into the Grid?
Ans: By underground cable to an existing post.
Qu: Where is the access point to the Grid?
Ans: Electricity pole above the Furnace Monument site.
Qu: Will faults in the installation affect local electricity supply?
Qu: How will TAP Ltd be notified if a fault occurs?
Ans: Mobile phone call from Sender / Receiver installation. Daily check procedure. Auto shutdown if fault occurs.
Frequently Asked Questions -- Pipe Installation
Qu: What size pipe will transport the water to the turbines?
Ans: 450mm diameter by 1Km long.
Qu: How is the pipe fabricated?
Ans: Plastic extrusion.
Qu: How deep is the pipe buried?
Ans: At a depth of 3 to 5 feet.
Qu: Will the pipe require any maintenance?
Qu: What route does the pipe follow?
Ans: Along paths running parallel to the Angiddy from the Beaufort Pond.
Qu: How will the pipe trench be dug?
Ans: With a 3 ton mini digger.
Qu: How long will it take to install the pipe?
Ans: 16 weeks.
Qu: Where will the spoil go from the trench?
Ans: Will be put back on top of the pipe.
Qu: How many trees will be damaged by digging the trench?
Ans: Approximately 40.
Qu: How will debris be prevented form entering the pipe?
Ans: A coanda filter system will be installed.
Qu: Has the route of the pipe had a civil engineering survey?
Qu: Will the trench generate any landslips?
Qu: Is the pipe to be bedded on sand or stone dust?
Ans: On stone dust.
Qu: What impact will the work have on the Furnace Pond?
Qu: Will water drain along the route of the pipe?
Qu: Is there sufficient room for the pipe welding equipment?
Qu: Will the road be damaged by pipe laying?
Qu: What is the visual impact of the intake, pipe, turbine house, Grid connections?
Ans: Intake hidden within existing arch in the dam wall. Filter box at base of dam. Pipe buried. Turbine house 7 metre x 4 metre built of natural materials and masked by trees.
Qu: Will any side streams be blocked or diverted?
Qu: Will the banks of the Angiddy be destabilised?
Qu: Will the public highway be destabilised?
Qu: What if the water flow in the Angiddy reduces?
Ans: Less power will be generated.
Frequently Asked Questions -- Construction
Qu: Is there a detailed plan of works for the complete installation?
Ans: High level plan.
Qu: Will the footpaths be closed during construction?
Ans: Permissive paths and footpaths will be closed.
Qu: Will the footpaths be reinstated?
Qu: Will noise, dust and mud be controlled during construction?
Qu: Where will plant and other vehicles be parked?
Ans: Furnace Pond carpark.
Qu: What toilet facilities will be available for construction teams?
Ans: Portable toilets will be provided.
Qu: Who will carry out the installation?
Ans: Specified sub contractors.
Qu: Will contracts be let by public tender?
Ans: Competitive quotations will be sought.
Frequently Asked Questions -- Maintenance
Qu: What maintenance of the filter box will be required?
Ans: Manual cleaning once per week.
Qu: Who will carry out the maintenance?
Ans: A TAP volunteer.
Qu: What maintenance will be needed ? How often and by whom?
Ans: Filter cleaning once per week by TAP volunteers. Annual shut down for turbine maintenance.
Qu: How is it flagged up when a problem occurs? To whom?
Ans: Daily inspection by TAP representative.
Qu: Is there an inspection procedure? What is the Frequency?
Ans: A procedure will be established.
Qu: How will the equipment be dismantled / refurbished?
Ans: Filter intake and turbines can be replaced. No pipe replacement needed.
Qu: What access is required for maintenance?
Ans: Foot access only.
Qu: How much money will be retained for maintenance and plant replacement?
Ans: £1000 maintenance. £3000 replacement per year.
Qu: Does the project plan include the reinstatement of paths and banks and removal of knotweed and silt?
Ans: Yes to paths and banks. TAP will attempt to remove knotweed which is near the pipe run. Silt in ponds will be removed annually.
Frequently Asked Questions -- Finances
Qu: How is the project to be funded? By whom?
Ans: By funders with an environmental bias.
Qu: Who will own the installations?
Ans: TAP Ltd.
Qu: Can TAP Ltd raise loans? Who would be responsible for repayments?
Ans: It could but there are no plans to raise loans.
Qu: Does the money have to be reimbursed if the scheme fails?
Qu: Does any money have to be repaid to funders?
Qu: What are the liabilities of TAP directors?
Qu: What insurance cover will be put in place?
Ans: To cover legal requirements.
Qu: What will the insurance policy cover?
Ans: Third party liability.
Qu: Are all elements of the system guaranteed for a period of time?
Qu: What is the function of the annual £1 membership fee?
Ans: To give interested people a sense of ownership.
Qu: Why is membership not restricted to local residents?
Ans: To widen the interest in renewable energy.
Qu: Is the distribution of profits restricted to local resident groups?
Qu: Who maintains the accounts? Who audits the accounts?
Ans: TAP treasurer. An annual independent audit will be carried out.
Qu: Is TAP a registered charity?
Qu: Could TAP Ltd be declared bankrupt?
Qu: Who are the beneficiaries of the scheme?
Ans: Local resident groups.
Qu: Who pays if TAP are unable to meet its financial commitments?
Ans: Electricity sales will more than cover annual operating costs.
Qu: What is the total cost of the scheme?
Qu: Are any directors paid a salary or a dividend?
Qu: What selling price can be achieved for the electricity?
Ans: Currently 9.0 pence per unit.
Qu: What is the estimated value per year of the electricity sold?
Qu: How is the annual benefit calculated?
Ans: Value generated minus costs.
Qu: How much electricity has to be generated to cover annual costs?
Qu: What is the realistic calculation of profit available for distribution?
Ans: £7000 per year.
Qu: Who decides on the distribution of profits?
Ans: A local committee will be set up.
Qu: How sensitive is the financial success to electricity selling price variations?
Ans: Viable at 9.0 pence per unit. Expected to increase over time.
Frequently Asked Questions -- Effects on the Angiddy
Qu: How much water will be taken from the Angiddy?
Ans: Up to 200 litres/sec .
Qu: What is the minimum amount of water left in the Angiddy?
Ans: Figure to be advised by the Environment Agency.
Qu: How will the minimum flow in the Angiddy be controlled?
Ans: Controlled exit from the input filter box.
Qu: How will water be extracted from the Angiddy?
Ans: A filter box installed in the Beaufort Pond dam.
Qu: Will the extracted water be returned to the Angiddy?
Ans: Yes. After passing through the turbines.
Qu: Has the flow in the Angiddy been measured over a full year?
Ans: Yes; please refer to the 'Flow Rates' page here.
Qu: What head of water is available at the turbines?
Ans: 27 metres.
Frequently Asked Questions -- Ecology
Qu: Will any trees be damaged by the installation of the pipe?
Ans: Approx 40 trees. None older than 40 years. Mainly poplar + alder.
Qu: Has an environmental survey been carried out?
Qu: Are any animals or plants liable to damage?
Ans: No animals. Some plant damage will occur.
Qu: Will the project contribute to the spread of Japanese knotweed?
Qu: Will there be on going environmental checks?
Frequently Asked Questions -- General Topics
Qu: What is the complaints procedure?
Ans: Complaints can be addressed to TAP chairman.
Qu: Who is the point of contact in TAP for complaints?
Ans: Chris Rastall.
Qu: Has a risk assessment been written?
Ans: Under review.
Qu: How are directors of TAP appointed?
Ans: Voted in at the Annual General Meeting.
Qu: What if government policy changes?
Ans: Impossible to predict government policy.
Qu: Will local television and telephone reception be affected?
Qu: What is the expected life of the project?
Ans: 40 years.
Qu: How will the archaeology of the valley be affected?
Ans: Minimally. The pipe will be buried in old leats.
Qu: What is risk of damage to archaeological remains?
Ans: Possibly some minor leat damage.