Both move the utility bill off your books and onto the residents who use the utilities. Submetering measures each unit exactly. RUBS splits the master bill by a fair formula when meters are not practical. NES runs both, so the recommendation depends on your building, not on what we sell.
A meter goes on each unit, between the master meter and the apartment. Every month, each resident gets a bill for exactly what their unit used. Water is metered most often because it is usually the biggest recoverable cost, and gas and electric follow the same pattern.
What RUBS is
RUBS stands for Ratio Utility Billing System. No meters are installed. Instead, the master bill is divided across units by a formula built from factors like occupancy and square footage, disclosed to residents as your state requires. Once residents see a utility line on their statement, usage falls even without a meter.
Submetering vs RUBS, side by side
Comparison
Submetering
RUBS
How residents are billed
Actual measured usage at each unit
A fair allocation formula based on occupancy, square footage, and similar factors
Accuracy
The most accurate form of utility billing
An estimate of each unit's share
How much of the bill you recover
Typically 85 to 95% of the master utility bill
Typically 70 to 85% of the master utility bill
Equipment
A meter installed at each unit
No equipment required
Upfront cost
Higher, since meters are installed
Very little upfront cost
Best when
Meters can be installed on the lines
Meters cannot be installed, or capital is better used elsewhere
Utilities covered
Water and sewer, gas, electric
Water and sewer, gas, electric
Conservation
Typically 15 to 30% lower water use
Usage falls, though less than with meters
Return on investment
Usually 12 to 18 months
Immediate, since there is almost nothing to install
Regulations
Varies by state and county; NES monitors it for you
Varies by state and county; NES monitors it for you
How to choose
If meters can be installed at a reasonable cost, submetering wins: it is the most accurate, it produces the biggest usage drop, and residents rarely argue with a bill that matches their own meter. If the plumbing makes meters impractical, or the capital is better spent elsewhere this year, start with RUBS. It goes live in about 30 days, and you can move to submetering later on the same NES contract.
NES is a submetering billing company that installs meters, reads the meters, bills residents, and provides phone and email support for residents and property managers. NES can submeter water, gas, and electricity across the country. Not all states, counties and municipalities permit submetering, and regulations change frequently. NES will verify and monitor all regulations on your behalf.
NES currently services properties across the country.
If you are trying to recover operating expenses for your apartment community, submetering is the answer.
When a property installs water submeters, residents work harder to conserve, and overall consumption drops. We typically see 15 to 30 percent lower water use. Submetering is also instrumental in detecting leaks. Common area water usage can be accurately measured and billed accordingly.
Submetering can also increase the value of your apartment community or mobile home park.
The master bill stops landing on your P&L. Most properties see payback inside 12 to 18 months with submetering, and RUBS starts recovering in the first cycle because there is nothing to build.
Common questions
Submetering and RUBS, explained
A meter on each unit, a monthly bill for each resident, and the owner off the hook for usage that was never theirs. The approach has been in use since the 1920s.
Almost all of them: apartment communities, mobile home parks, townhomes, condos, student housing, and commercial centers, whether new construction or occupied buildings. If your property cannot take meters, RUBS covers it.
RUBS allocates the master bill by a formula using factors like occupancy and square footage. It makes sense when meters cannot be installed or when the install cost outweighs the return. NES will tell you which side of that line your property is on during the free review.
Yes, plenty, and they change. Rules vary by state, county, and sometimes city. NES tracks them with an in-house compliance team, files what needs filing, and keeps a seven year audit archive. If you self-manage meters without NES, budget real time for keeping up.
Yes. NES bills hundreds of thousands of units a month across 43+ states, with in-house installers, billing, collections, and compliance. The owner is involved in the business day to day, and clients sometimes get a call from him personally.
Own or manage a multifamily property?
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