Background Colin Taylor - Director 30+ years in Building Services - - PowerPoint PPT Presentation
Background Colin Taylor - Director 30+ years in Building Services - - PowerPoint PPT Presentation
Background Colin Taylor - Director 30+ years in Building Services industry - 10 years design/installation of heat networks Background in BMS & energy networks, ESCos & Facility Management Richard Johnson - Director 25+ years
Colin Taylor - Director
30+ years in Building Services industry - 10 years design/installation of heat networks Background in BMS & energy networks, ESCo’s & Facility Management
Richard Johnson - Director
25+ years construction & civil engineering industry with major UK contractor 8 years management/design/installation of heat networks
Background
Original Objectives in December 2012
- Establish credible UK Design and Installation Contractor
- Become a Benchmark for Quality
- Capitalise on the Opportunity within UK market
- Increase Powerpipe UK Market Share
- Offer a non-operator “Turnkey Solution”
- Established 1986, Sweden’s largest manufacturer of pre-insulated
pipes
- Annual Production of:
- 25,000 Pipes – Single & Twin (300Km)
- 10,000 Fittings & Joints
- Products confirm to BS EN Standards EN BS 253, 489
- Verified by Euroheat & Power
- 2015 Powerpipe’s UK sales £2M – 30%
Design Install Maintain UK District Heating Network Market
Suppliers High Quality Installation Product Risk Management UK based operation Design/Technical Support Pipe Supply Training Business Development Sub Contractors
- Directly employed & highly trained technical installation operatives
- Technical and design capability – supported by Powerpipe
13/14 Turnover: £1.6m 14/15 Turnover: £2.5m 15/16 Turnover: £3.5m
Capabilities
- Pre-insulated pipe design – routing, expansion, feasibility
studies & coordination
- Pre-insulated pipe supply, install & commission
- Civil engineering works associated with the installation
- f pre-insulated pipe
- Maintenance of pre-insulated pipe heating and cooling
networks, including water quality
- Energy Services Company (ESCo) consultancy – financial
and technical modelling
- Stockist
Quality
- “Once Only” Policy - Raise the bar in terms of
UK DH installation
- Employed competent trained and certified
staff
- “Best in Class” installation processes and
procedures developed from Swedish standards
- Accurate records and data from installation
process - GPS
- Accreditations:
Heat Network Design
- Heat mapping, high level routing & load assessments
- Detailed design to BS EN13941– expansion, maximise temperature
differential & heat loss calculations
- CIBSE Heat Networks – Code of Practice
- Network sizing, diversity, form of terminations, heat substations,
future expansion
- Service coordination – Ground Penetrating Radar, Trial Pits etc.
- Accurate utility information, reduces project risk, delays & costs
- Installation depth – cost critical Cap/Op ex
- Wayleaves, possessions, NRSWA, parking suspensions – optimised
practical routing
- Construction phased implementation coordination
- Testing allowances – NDT, Air Tightness, Hydraulic
- Live before all installed – Temporary Energy Centre
- Flushing and testing considerations
- Operation, Maintenance & Warranty
DH in the UK - Practicalities
- Construction/installation generally not considered – time & cost
- National Joint Utilities Group - DH not recognised
- Utility/general contractors - life cycle risk and conditions required for
install of DH
- UK Construction Environment – Adversarial
- Contracts – Civils & Mechanical
- Health & Safety
- Time & Programme Constraints
- Site Coordination & Logistics – 12m lengths
- Cold Lay “the norm” in the UK
- Warranty
- Contractors Warranty – 12 months
- Product Warranty– 12 months, 5yr, 10yr, more…
- Specialist Contractor Warranty – contract specific durations
Heat Network – Costs
- Typical split 50:50 Civils and Mechanical
- Central London 60:40 or even 70:30
- Considerations to factor feasibility rates
- Environment
- Access
- Programme
- Season/Weather
- Services
- Excavation – hard/soft
- Reinstatement materials
- Possessions – parking bays, road, network rail
- Contractor Risk
- Operational costs also critical in overall
commercial model
- Eneteq can assist with development of site
specific budgets for cap-ex and op-ex
Mechanical Excavation in Soft Surface per M Mechanical Excavation in Hard Surface per M Soft per M Hard per M DN 20/110 268.00 £ 140.00 £ 310.00 £ 408.00 £ 578.00 £ DN100/225 392.00 £ 156.00 £ 328.00 £ 548.00 £ 720.00 £ DN150/280 454.00 £ 164.00 £ 344.00 £ 618.00 £ 798.00 £ DN300/500 860.00 £ 190.00 £ 478.00 £ 1,050.00 £ 1,338.00 £ Civil Work- Excavate and Reinstate Composite Rates Note: No Allowance for hand excavation/services Pipe/Casing Mechanical F&R - Supply and Install,
- Inc. prelims per M
Heat Network - Project Risk
Risk Management & Allocation
- Design
- Routing, Expansion, Heat Loss, Sizing
- Installation
- Services, Programme (3m day in London),
Pipe 12m, Delay
- Operation
- Water Quality, Leak Detection, Annual
Cycles
- Controls
- Framework Agreement
- Shared Risk Register
- Documented Test & Inspection Processes
- Quality Procedures
- As Installed Drawings & Records - GPS
- Turnkey Solutions – Supply & Install
- Defects Liability & Warranty
Nr Risk Description Impact High Med Low Control Measure Cost Resultant Risk 1 Desired pipe route obstructed by additional unkown services Trench diversion and alterations that result in the requiement for additional pipe, standard and bespoke fittings, joints and assocaited labour, plant and prelims Yes
- Hold additional pipe offsite or
- nsite if space and security
permits £6,691.97 (£133,839.35 x 5%) Low Hold additional standard fittings offsite or onsite if space and security permits £12,549.43 (£83,662.88 x 15%) Low Hold additional joint casings and foam packs offsite or
- nsite if space and security
permits £62,454.71 Based upon an addional 102 joints Low 2 Excavation/Install rate slower than anticipated at Tender Non-productive working resulting in increased project duration, staff and prelims costs Yes
- Addional civils labour and plant
to maintain tender programme rates Increased excavtion labour and plant costs to be provided by
- thers
Unknown Additional prelims and labour costs estimated to be 4-weeks in duration £26,788.00
- r £8,188.00 per week
Medium 3 Logisitcs and materials distribution not as planned Unloading area(s) in or around Bart's Square not available, resulting in increased time for deliveries and/or additional HIAB days to bring pipe and materials from the offsite compound. Yes
- Budget for additional 4-number
HIAB days and associated labour £5,038.00
- r £1,259.50 per day
Low Items not onsite or at the
- ffsite compound will result in
increased programme periods, prelims etc.
- Yes
- Hold additional materials offsite As detailed above
Low
Leak Detection
What is it?
- A pair of wires embedded in throughout the pipe insulation
during manufacture
- Alarm, Surveillance & Fault Location
- Passive or Active Systems Available
- Monitors Water Egress & Ingress
What does it Cost?
- Typically <3% of Contract Value
What does it Offer?
- Long term monitoring, performance analysis
- Early fault location – (1mtr in 1,000mtr)
- Minimise & reduce cost of repairs
- Reduce OPEX
Heat Loss
Conditions
- Ground/Ambient Temperature – 10DegC
- Conductivity – 1.5W/mK
- Cover - 600mm
Flow Return Differential Series-1 Series-2 Series-3 Series-4 Unit 95 75 20 352.8 295.8 257.5 226.9 W/mK 75 45 30 235.2 197.2 171.7 151.3 W/mK 117.6 98.6 85.8 75.6 W/mK n/a 155.6 181.1 201.5 W/mK Reduction in Losses Reduction from Series-1
Innovation
Hybrid Systems
- Main Transition Mains - Pre-insulated Steel
- House/Plot Connections – Flexible Pipes
- PEX-A
85DegC 6bar (Higher temps & pressure reduce life expectancy)
- Alu-PEX
95DegC 10bar
- CuFlex
95DegC+ 16bar
- Single, Double & different sizes
- High levels of insulation – 0.0216W/mK
- Press fittings
Steel Press Fitting
- HAELOK AG – Swiss manufacturer
- Steel Pipe sizes - 6mm – 168mm (6”)
- High Temperature, High Pressure no welding
- Being assessed by the Danish District Heating Association
Summary
Good Design
- Compliant with EN13941, CIBSE Code of Practice
- Correctly sized carrier pipe, diversified to meet the
predicted load
- Shortest route, considers construction & site constraints
- Maximum differential temperature, minimum heat loss
- Active leak detection
Good Implementation & Maintenance
- Quality Installation that provides accurate records (GPS)
- Leak detection & System monitoring
- Water quality, “steady” operating conditions
Minimises Total Cost of Ownership
- CAPEX & OPEX
Case Study: Bristol City Council
- Initial appointment for detail design, supply and installation of
preinsulated pipe suspended below a new bridge crossing the River Avon
- Appointed under a framework agreement for design and procurement of
City wide DH network including GPR Surveys, Civils & Supply and Installation
- Current Contract Value circa £750k (anticipated £4-5M over 5-years)
Case Study: London Wall Place
- EON CitiGen Network Diversion through one of London's most prestigious new
developments at LWP
- Main Contractor – Brookfield Multiplex
- Technically challenging due to the site location, working environment and
programme requirements
- Contract Value circa £530k excluding Civils - only specialist contractor prepared to
undertake project due to its complexity and programme constraints -
- Standard pipe fittings & bespoke HDPE outer casings
Case Study: Salters Hall
- EON CitiGen Network Connection
- Technically challenging due to the site location, working environment
- Central London, 5.2m deep excavation, confined space working
- Standard pipe fittings & bespoke HDPE outer casings
- Contract Value £300k (Civils £170K + Mechanical £130k) Client Budget £30k
Case Study: Chobham Manor
- Taylor Wimpey - 1,500 New Build Residential Development
- Queen Elizabeth Park, London – (2012 Olympic Park Basket Ball Arena)
- Connected to Cofely’s network via Heat Substations
- Twin Pipe system to utilised to minimise heat losses
- Contract Value £450k
Case Study: Elephant & Castle
- Lend Lease & PJ Carey’s
- Central London, Multi-Dwelling Residential Scheme
- Eneteq Scope of Works - Install Only
- Powerpipe materials issued under framework
agreement
- Contract Value circa £600k
- Programme 26-weeks
Case Study: Derwenthorpe
- New build residential development undertaken by Joseph Roundtree Housing Trust, David Wilson Homes
- 550 low density 2, 3, 4 & 5 bedroom homes
- Veolia appointed as operating ESCo
- Eneteq assisted in the development of the site-wide network
- Appointed to supply, installed and commissioned twin pipe steel and copperflex heat network
- Contract Value circa £1.6M
Case Study: Graylingwell Park
- Regeneration of a former 85 acre Victorian Hospital undertaken by Graylingwell LLP
- UK’s largest Net Zero Carbon development
- 780 new/refurbished dwellings, 40% affordable housing, 11,000m² non-housing
- Eneteq assisted in the development of the site-wide energy strategy, including:
- Technical feasibility, commercial, legal and financial structures
- Designed, installed, commissioned and maintain the heat network
- First scheme in the UK to utilise twin pipe – reducing network losses and excavation/construction costs
- Contract Value to date circa £450k (forecast £1.2M)
Questions?
Colin Taylor colin.taylor@eneteq.co.uk 07765 003806