LeisureEnergy · Analytics
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Grantham Meres Leisure Centre

South Kesteven DC · NG31 · GIA 5,400 m² · DEC band D · 6 zones modelled
Calendar 2024 ▾ vs Calendar 2023 ▾ Generate report
2.79 GWh gas 245 MWh electricity 14,820 m³ water 558 tCO₂ £245k utility spend Data coverage 98.5%
ℹ️
Illustrative dashboard. Synthetic figures based on the Sandwell 2023 baselines + a typical UK 25m+learner leisure centre. Real numbers populate from the bound meters in Stage 2.

Overview

Headline consumption, cost, and carbon — the figures a council finance committee asks for first.
Print Share
Gas
2,799,021kWh
▲ +2.1% vs 2023 (HDD-adj)
Electricity
245,057kWh
▼ -0.4% vs 2023
Water
14,820
data partial
tCO₂
558.4
▲ +1.2% grid factor shift
£ utility spend
£245,622
▲ +5.8% tariff increase
Visitors
214,800
▼ -3.1% vs 2023
Monthly consumption · 2024 vs 2023
Stacked: gas + electricity. HDD trend overlaid for weather normalisation.
Stacked vs HDD Normalised
400k 300k 200k 100k 0 JanFeb MarApr MayJun JulAug SepOct NovDec
2024 gas 2023 gas Electricity (top stack) HDD (right axis)
Fuel mix
Where the kWh + CO₂ come from
92% gas (kWh)
Gas 92% · 2.80 GWh
Electricity 8% · 245 MWh
PV (post-S24-1467) future
vs CIBSE TM46 benchmark
Wet leisure centre · kWh/m²/yr
562 kWh/m²
Good practice
400
Typical
500
You · 562Poor
700+
12% above typical · 41% saving potential vs current to reach good-practice band
Display Energy Certificate
Operational rating · current period
A
B
C
D
E
F
G
Current operational rating: D · 116
Post-PSDS modelled rating: B · 78

Consumption analysis

When and where energy is used. Patterns drive the ECM opportunities — overnight setback, pre-open spikes, weekend variation, sub-meter splits.
Year ▾ All fuels ▾ HDD-normalised
Daily heatmap Hourly profile Weekly pattern Sub-meters
Daily gas demand · 2024
Each cell = one day. Darker = higher kWh.
Range 1,820 → 12,640 kWh/day
MonWedFriSun
JanFebMarAprMayJun JulAugSepOctNovDec
less
more
Average daily gas load curve
Half-hourly mean · weekday vs weekend
Feb 2024
500 375 250 125 0 00:00 06:00 12:00 18:00 23:30
Weekday mean Weekend mean
Pre-open peak (05:30)
462 kWh/HH
Evening peak (19:30)
311 kWh/HH
Overnight setback
143 kWh/HH
Sub-meter allocation
Where the electricity goes · 2024
2 sub-meters · rest inferred
LoadSourcekWh%
Pool plant
circ pumps + AHU + dosing
sub-metered 87,300 35.6%
Lighting inferred 62,400 25.5%
Gym + studios equipment inferred 38,100 15.5%
Catering + reception inferred 22,400 9.1%
Domestic hot water inferred 18,500 7.6%
Small power + IT + misc inferred 16,357 6.7%
⚠️
Only Pool plant is sub-metered. Other allocations are inferred from inventory + opening hours. Installing the 4 expected sub-meters (Stage 4 · AMR sub-metering ECM) would shift the orange "inferred" pills to measured.
Annual breakdown
Current period vs prior · per fuel · with carbon impact
Export CSV
Fuel2024 kWh2023 kWhΔ kWh2024 £2024 tCO₂Tariff p/kWhSource
Natural gas2,799,0212,740,800+58,221 (+2.1%)£164,991511.05.89AMR · t-mac
Electricity245,057246,036-979 (-0.4%)£48,02747.419.60AMR · Stark
Water14,820 m³15,640 m³-820 m³ (-5.2%)£32,604monthly bills
Total3,058,898 kWh2,986,836+72,062£245,622558.4

Heat density · kWh/m²

Energy consumption normalised by floor area. Pool halls dominate. The picture below drives where ECMs land first.
Gas + Elec ▾ Annual 2024 ▾
Plan view · zone heat-density
Each rectangle scaled by floor area; colour by kWh/m²/yr
0 2,500 kWh/m²
Pool hall · 25m + learner
590 m² · 1,062 MWh
1,800 kWh/m²
Sports hall
504 m² · 89 MWh
176 kWh/m²
Plant rm
2,140 kWh/m²
Fitness gym
308 m² · 105 MWh
340 kWh/m²
Studio ×2
160 m² · 48 MWh
300 kWh/m²
Changing village
220 m² · 92 MWh
418 kWh/m²
Reception & café
160 m² · 31 MWh
194 kWh/m²
kWh/m² · zone league table
Bar = density · Number = absolute kWh contribution
ZonekWh/m²Total kWh% of site
Pool hall 590 1,800
1,062,000 73.5%
Plant room 42 2,140
89,880 6.2%
Changing village 220 418
91,960 6.4%
Gym 308 340
104,720 7.2%
Studio ×2 160 300
48,000 3.3%
Reception / café 160 194
31,040 2.1%
Sports hall 504 176
88,704 6.1%
Site 1,984 562 1,516,304 100%
CIBSE TM46 · sub-category
Per zone · against published benchmarks for that use
Pool hall vs TM46 "swimming pool centre"1,800 / 1,256 typical
good 950typical 1,256poor 1,800+
Sports hall vs TM46 "indoor sports"176 / 195 typical
good 130typical 195poor 270+
Fitness gym vs TM46 "fitness suite"340 / 385 typical
good 240typical 385poor 520+
Reception & café vs TM46 "general office"194 / 220 typical
good 95typical 220poor 350+
💡
Pool hall is the focus. It carries 73.5% of site demand at 43% above TM46 typical. Pool covers + dehumidification HRU + LE Net Zero Pod® would close most of the gap; the dry zones are roughly on-band.

Peak load analysis

When the building hits its highest demand, what drives it, and what it costs. Drives PSDS justifications and DUoS exposure.
Electricity ▾ 2024 ▾
Peak demand (HH)
82.4kW
14 Feb · 18:30 · weekday evening
Load factor
34%
avg / peak · room to flatten
Base load (overnight)
14.2kW
setback target ≤ 12 kW
Peak driver
Pool plant
+ evening shower + lighting
Daily peak time · scatter
Hour of day when daily peak occurred · 2024 · n=363
90 70 50 30 site peak 82.4 kW · 14 Feb 00:00 06:00 12:00 18:00 23:30
Two clear clusters: 05:30 pre-open boiler ramp + 18:30–19:30 evening shower / lighting overlap. 89% of annual peaks fall in one of these two windows.
Demand-duration curve
Half-hours sorted descending · electricity
90 kW 60 30 0 DUoS capacity threshold Top 50 HH 0 4,380 13,140 17,520
Top 50 HH represent
4.1% of kWh
If shaved to 70 kW
−£3,200/yr DUoS
Battery sizing implied
~40 kWh storage
Average demand · day-of-week × hour
7 × 24 = 168 cells · electricity · 2024 mean
Mon
Tue
Wed
Thu
Fri
Sat
Sun
000306091215182123
10 kW
82 kW
Top 10 peak half-hours
When + how high + concurrent outdoor temp
#Date · timekW°C outLikely driver
1Wed 14 Feb · 18:3082.43.2Evening shower + lighting + pool plant
2Wed 14 Feb · 19:0081.83.0Evening shower + lighting
3Tue 30 Jan · 18:3080.61.8Evening · cold day
4Mon 22 Jan · 19:0079.42.6Evening
5Wed 07 Feb · 18:3078.84.0Evening
6Tue 20 Feb · 18:3077.63.4Evening
7Thu 01 Feb · 19:0076.94.2Evening
8Wed 28 Feb · 18:3075.45.0Evening
9Mon 18 Mar · 05:3074.81.4Pre-open ramp · cold day
10Tue 05 Mar · 19:0074.13.8Evening
📌
9 of the top 10 fall on Mon/Tue/Wed between 18:30–19:00, in Jan–Mar. A TRIAD-style charge would catch most of these — peak shaving is the highest-leverage electrical intervention.
Peak driver attribution · 14 Feb · 18:30
Inferred breakdown of the 82.4 kW peak half-hour from inventory + sub-meter where available
Inspect this HH →
Pool plant (sub-metered)
31.3 kW · 38%
Lighting (inferred)
19.8 kW · 24%
Gym equipment
11.5 kW · 14%
DHW pumping
9.9 kW · 12%
Catering + small power
6.6 kW · 8%
Studios
3.3 kW · 4%

Report templates

Auto-generated PDFs in LE house style — drop directly into client meetings and council papers.
Site one-pager Energy proposal PSDS application Council variance report Download PDF

Grantham Meres Leisure Centre

Site type Wet + dry GIA 5,400 m² (DEC) DEC band D · 116 Baseline Calendar 2024
Annual gas reduction
100%
2,799,021 → 0 kWh
Annual electricity Δ
+181%
245k → 617k kWh (Net Zero Pod®)
Annual CO₂ reduction
433 t
558 → 125 tCO₂ (78%)
Annual £ saving
£102,779
vs current £245k spend

Facilities

Main pool (25m · 6 lane)
Learner pool
Spa / hot tub
Sports hall
Fitness gym
Studio ×2
Changing village
Reception & café
Squash courts
Soft play

Improvement details

Air handling units
AHU optimisation
Air source heat pump
BEMS
AMR sub-metering
Lighting
Lighting controls
Low-flow showers
Microfiltration
Pool cover
Pool pump optimisation
Solar PV (S24-1467)

Annual and estimated consumption

FuelCurrentEstimatedSavings% saving
Gas2,799,021 kWh0 kWh2,799,021 kWh100%
Electricity (grid)245,057 kWh688,640 kWh−443,583 kWh−181%
CO₂558 t125 t433 t78%
Total utility ££245,622£142,843£102,77942%

Energy Conservation Measures

Project£ savingtCO₂kWhCapexPayback (yrs)
Lighting£18,42018.294,800£62,4003.4
Pool pump optimisation£3,8605.125,800£42,00010.9
Microfiltration£21,1804.827,200£250,00011.8
AHU controls£7,4008.444,000£48,0006.5
Pool covers£12,80022.3118,400£18,0001.4

Renewables

Project£kWhCapexPayback
Solar PV (S24-1467)£18,42094,200£182,0009.9

Decarbonisation

Project£kWh gasCapexPayback
LE Net Zero Pod® (R744 · sCOP 4+)£61,361−2,799,021£2,340,0004.6 (post-PSDS)
PSDS application pack
Multi-site bundle · eligibility + funding
📄
24 pages · auto-compiled
Includes risk register + capex breakdown Preview →
Heat Decarbonisation Plan
5-year HDP for non-PSDS sites
🌡️
18 pages · long-term roadmap
Grid decarbonisation trajectory built in Preview →
Council capital-programme report
Variance & RAG appendix
📊
4 pages · committee-ready
Drop-in for council finance papers Preview →