Skip to content
Shoreline

The Shoreline difference / Energy performance

Compare home energy use.
Understand the HERS score.

You compare cars by MPG.
You can compare homes by HERS.

The Home Energy Rating System compares a home’s energy performance with a standard reference home. A lower HERS score means less modeled energy use.

Phase III plan ratings

HERS Index scores 56 to 60

HERS® Index

What that tells you

Phase III scores
range from 56 to 60.

A third-party rater has rated the Phase III plans from 56 to 60 on the HERS Index. That represents approximately 40–44% less modeled energy use than the standard reference home.

The reference is a comparable home built to 2006 energy standards. These are plan ratings; ask for the completed rating certificate for the home you are considering.

Reading the scale

Less energy.
Lower number.

For perspective, RESNET uses 130 for a typical resale home. Phase III plan scores are 56–60. The lower the score, the less modeled energy a comparable home uses.

130 is RESNET’s typical resale-home benchmark (opens in a new tab), not a measured score for every existing home. A specific home needs its own rating.

100 is a baseline. It is the 2006 HERS reference standard, not the average score of homes built today. Each point below it represents roughly one percent less modeled energy use.

0 is net zero. In the rating model, the home produces as much energy annually as it uses. The scale can extend above 130; 130 is not a maximum score.

It is a comparison. The rating includes heating, cooling, water heating, lighting and certain appliances. Your bills also depend on weather, energy prices and how you live.

Phase III / A closer look

The numbers by plan.

HERS scores for each Phase III plan. Ask us for the rating certificate for the home you are considering.

Peak

56HERS Index

Approximately 44% less modeled energy than the HERS reference home.

Explore Peak

Skyline

59HERS Index

Approximately 41% less modeled energy than the HERS reference home.

Explore Skyline

Outlook · Sold out

59HERS Index

Approximately 41% less modeled energy than the HERS reference home.

Explore Outlook

Vista

60HERS Index

Approximately 40% less modeled energy than the HERS reference home.

Explore Vista

Behind the number

Insulation, windows
and heating systems.

The walls, windows and heating systems all affect a home’s energy use. These are some of the features included in Phase III.

Explore how Shoreline is built
  1. 01

    Insulated walls and low-e windows.

    R-23 insulation in 2×6 exterior walls, foam at rim joists and truss ends, and low-e double-paned Marvin® windows.

  2. 02

    Efficient heating and sealed ducts.

    A 95%-efficiency natural gas furnace, sealed ductwork within heated or cooled space and programmable thermostats.

  3. 03

    Independent inspection and testing.

    A certified HERS rater models the home’s energy use, using site inspections and diagnostic testing to complete its rating.

A Shoreline homeowner’s experience

One Shoreline homeowner told our team they rarely run the heat or air conditioning in their basement, which stays near 67°F through the year.

Indoor temperatures and energy use vary by home, weather and how the home is used.

See the Phase III energy ratings

Good questions

Energy, explained.

Is HERS the same as ENERGY STAR®?

No. HERS is a numerical energy-performance rating. ENERGY STAR is a separate certification program with its own requirements. Phase III homes carry both a third-party HERS rating and ENERGY STAR certification.

Will a score of 60 cut my bills by 40%?

A score of 60 represents roughly 40% less modeled energy use than the HERS reference home. It does not promise a 40% reduction in your utility bills. Actual use and cost depend on the specific home, local rates, weather and household habits.

Does every home in a plan have the same score?

A HERS rating belongs to a particular home. Orientation, selected features and construction testing can affect the result. The Phase III plan scores are useful context; request the completed certificate for the home you want to purchase.

How can I verify a home’s score?

Ask our team for the home’s HERS rating certificate. You can also look up a rated home by address in the RESNET HERS rated-home registry at hersindex.com.

RESNET rated-home registry (opens in a new tab)

Shoreline / The gallery

At the water’s edge / September 2026, photograph 1 of 33