Planning-level financial screening
Advanced metering conversion
Summary
At the utility's reported apparent losses of 13.9 million gal per year, worth $99,000 at the retail unit cost, converting 2,350 metered connections to advanced metering returns more than its cost over the meter life only toward the favorable end of the planning range. Discounted lifetime value is -$1.19 million to $801,000 against a one-time conversion cost of $588,000 to $1.41 million.
The conversion breaks even at an installed cost of $342 per meter, so a quoted price broken out by meter size settles most of the question.
The result is most sensitive to whether meter reading cost actually leaves the budget. That is a records question, not an analysis question, and the utility can answer it before committing funds.
What the utility reported
| Measure | Value | Source |
|---|---|---|
| System input volume | 268 million gal | [1] |
| Apparent losses (meter, billing, theft) | 13.9 million gal | [1] |
| Apparent losses as a share of system input | 5.2% | [1] Apparent losses divided by system input |
| Customer retail unit cost | $7.10 per 1,000 gal | [2] |
| Metered service connections | 2,350 | [2] |
| Audit data validity score | 61 of 100 | [1] |
Published cost factors and planning ranges
| Item | Value | Basis |
|---|---|---|
| Share of apparent losses recovered by advanced metering | 40% to 75% | [3] |
| Meter, endpoint, and installation cost | $250 to $600 per meter | [4] |
| Network and software, per meter per year | $6 to $18 | [5] |
| Manual read cost | $1 to $2 | [6] |
| Manual reads performed per meter per year | 12 | [7] |
| Service life used for the lifetime comparison | 15 years | [8] |
| Real discount rate for lifetime cost comparison | 3.0% | [9] |
What comparable programs achieved
Reference cases are published conversions. Each shows who paid for the work and whether a vendor published or supplied it.
| Reference case | Result | Funding and vendor role | Source |
|---|---|---|---|
| Albuquerque Bernalillo County Water Utility Authority (NM) | Apparent losses reported to the AWWA data initiative fell from about 929 million gallons a year to about 93 million between 2011 and 2015 as advanced meters went in. Replacing about 3,000 broken and low-functioning meters captured about $2.5 million in lost revenue over three years. By 2019 about half of 200,000 accounts had been converted. | Albuquerque Bernalillo County Water Utility Authority, about $2 million a year of capital funding; vendor role: yes (Sensus selected as the system vendor in 2011; the account is not vendor-published) | [10] |
| Unnamed utility (Utility A), Texas Water Resources Institute primer (TX) | A system of about 5,500 homes and 6,100 connections paid for its conversion with $1.8 million of a $2 million budget surplus, with no loans or bonds. The same primer puts a typical budget at roughly 45 percent meters, 20 percent network hardware, 15 percent installation, 11 percent project management, and 9 percent information technology. | The utility's own budget surplus; vendor role: no (university extension publication) | [11] |
Benefit, cost, and lifetime value
| Item | Planning range | Basis |
|---|---|---|
| Revenue lost to apparent losses per year | $99,000 | [1][2] Apparent losses valued at the retail unit cost |
| Revenue recovered per year | $39,000 to $74,000 | [1][2][3] Revenue lost to apparent losses times the recovered share |
| Meter reading cost saved per year | $21,000 to $56,000 | [2][6][7] Meters times reads per year times manual read cost |
| Gross benefit per year | $61,000 to $130,000 | [1][2][3][6][7] Revenue recovered plus meter reading cost saved |
| Network and software cost per year | $14,000 to $42,000 | [2][5] Meters times network and software cost per meter |
| Net benefit per year | $18,000 to $116,000 | [1][2][3][5][6][7] Gross benefit less network and software cost |
| One-time conversion cost | $588,000 to $1.41 million | [2][4] Meters times installed cost per meter |
| Simple payback | 5.1 to 76.9 years | [1][2][3][4][5][6][7] One-time conversion cost divided by net benefit per year |
| Lifetime value, discounted | -$1.19 million to $801,000 | [1][2][3][4][5][6][7][8][9] Net benefit over the meter life discounted to present value, less the one-time conversion cost |
Leak alerts from advanced metering, customer service call reduction, and grant or state revolving fund support are not counted. Neither is any change in real losses, which the water loss screening covers separately.
What has to be true for the conversion to break even
The figure below is the installed cost per meter at which discounted net benefit equals the conversion cost, holding everything else at the middle of its planning range.
| Measure | Break-even value | Basis |
|---|---|---|
| Break-even installed cost per meter | $342 per meter | [1][2][3][5][6][7][8][9] Installed cost per meter at which discounted net benefit equals the conversion cost |
What would change the answer
| If this is true | Lifetime value becomes | How to check |
|---|---|---|
| Base case | -$1.19 million to $801,000 | Reported figures and planning ranges above |
| New meters recover half the assumed share of apparent losses | -$1.43 million to $359,000 | Test a sample of the oldest large meters against a calibrated standard |
| Meter reading is done by existing staff and no cost leaves the budget | -$1.44 million to $128,000 | Confirm whether meter reading is a contracted service or a staff duty |
| Installed cost runs a third above the planning range | -$1.66 million to $607,000 | Obtain a cooperative contract quote broken out by meter size |
| Retail rates fall by a tenth | -$1.24 million to $713,000 | Check the adopted rate schedule and any scheduled change |
Data checks
Apparent losses include unauthorized use and billing-system error as well as meter under-registration. New meters address under-registration and estimated reads. The recovered share used here reflects that, but a utility whose apparent loss is mostly billing-system error would recover less.
Meter reading savings assume the reading cost leaves the budget. Where existing staff read meters alongside other duties, the saving is staff time redirected rather than money recovered, and should be removed from the benefit.
What this screening does not cover
This is a financial screening, not an engineering evaluation and not a meter specification. It does not size meters, select a communication technology, assess radio coverage, or evaluate hydraulic effects. Specification and design are performed by the utility's engineer of record, and site-specific evaluation precedes any purchase.
Customer data handling, billing practice changes, and any rate effect are matters for the utility's counsel and governing body. Figures are planning-level and support a decision on whether to seek quotes.
Method
Apparent losses come from the utility's water audit prepared under the AWWA M36 method and are valued at the retail unit cost, because that water was produced and delivered but not billed. Recovered revenue is the recovered share of that value. Meter reading savings are metered connections times reads per year times the cost of a read. Net benefit subtracts the network and software cost. Lifetime value discounts net benefit over the meter life and subtracts the one-time conversion cost.
Ranges reflect published figures and planning parameters, not statistical confidence intervals. Each planning parameter lists its basis and confidence in the sources.
Sources
- Town of Example. 2025 water audit worksheet (fictional). 2025. Fictional record created for this sample.
- Town of Example. 2025 adopted water rate schedule and meter inventory (fictional). 2025. Fictional record created for this sample.
- LeMay Civic Advisory. Planning range: new meters and endpoint reads remove most under-registration and estimated-read error, not all of it. 2026-09-15. Confidence low
- LeMay Civic Advisory. Planning range pending a cooperative contract quote. 2026-09-15. Confidence low
- LeMay Civic Advisory. Planning range pending a vendor quote. 2026-09-15. Confidence low
- LeMay Civic Advisory. Planning range covering reader labor and vehicle cost. 2026-09-15. Confidence low
- LeMay Civic Advisory. Planning assumption of monthly billing. 2026-09-15. Confidence medium
- LeMay Civic Advisory. Planning assumption matching a common meter replacement cycle. 2026-09-15. Confidence medium
- LeMay Civic Advisory. Planning assumption; replace with the government's adopted rate. 2026-09-15. Confidence medium
- Internet of Water. Unearthing the Hidden Benefits of Advanced Metering Infrastructure (AMI). 2020-04-28. https://internetofwater.org/blog/data-stories/return-on-investment/unearthing-the-hidden-benefits-of-advanced-metering-infrastructure-ami. Funded by Albuquerque Bernalillo County Water Utility Authority, about $2 million a year of capital funding; vendor involvement: yes (Sensus selected as the system vendor in 2011; the account is not vendor-published); confidence medium
- Texas Water Resources Institute, Texas A&M AgriLife. Considerations for adopting AMI and AMR: A comprehensive guide for water utilities (EM-119). 2015-10. https://twri.tamu.edu/wp-content/uploads/2024/04/em-119_ami_primer-1.pdf. Funded by The utility's own budget surplus; vendor involvement: no (university extension publication); confidence medium