Decoding the HERS Score

How Shoreline’s Energy Efficiency Maximizes Long-Term Value

Mountain views, thoughtful architecture and refined finishes may be the first things buyers notice in a Park City home. But some of its most valuable features are hidden behind the walls.

In a high-elevation climate shaped by wide temperature swings, energy performance can affect comfort and operating costs throughout the year. That makes the HERS score an important comparison point for buyers exploring energy-efficient homes near Park City.

What Is a HERS Score?

The Home Energy Rating System, commonly called the HERS® Index, measures a home’s modeled energy performance. Think of it as an MPG rating for a house: the lower the score, the more energy-efficient the home is expected to be.

A score of 100 represents the energy use of a reference home based on 2006 energy standards. A score of 0 represents a home that produces approximately as much energy as it consumes annually. Each point generally reflects a 1% difference in modeled energy use compared with the reference home.

Unlike a general efficiency claim, a confirmed HERS rating is based on construction-plan analysis, inspections and performance testing completed under the supervision of a certified HERS Rater. The evaluation considers the home as a complete system, including insulation, windows, mechanical equipment, air leakage and duct leakage.

Understanding Shoreline Park City’s HERS Score

At Shoreline Park City, our homes all have a HERS score of 49. In practical terms, that means each model, including Vista, Skyline, and Peak, use approximately 51% less energy than the HERS reference home.

Of course, that does not mean every utility bill will be exactly 51% lower. Actual costs depend on weather, household size, thermostat settings, occupancy and utility rates. The score instead offers a standardized way to compare expected energy performance.

Shoreline homes are also third-party ENERGY STAR® certified, adding another level of verified performance.

The Building Features Behind Shoreline’s Energy Performance

A strong HERS score reflects how multiple components work together.

Shoreline’s energy-efficiency features include 2×6 exterior walls with R-23 blown-in-blanket insulation, foam insulation at rim joists and truss ends, high-performance Marvin® low-e double-pane windows and sealed ductwork located in conditioned spaces. A ZIP System® exterior wall system helps resist moisture and air intrusion, while double “cold roof” construction and full ice-and-water shielding are designed for mountain weather and ice-dam protection.

Energy-efficient lighting, insulated garage doors, programmable thermostats and ENERGY STAR kitchen appliances further support the home’s performance. Together, these choices contribute to a more complete and efficient building envelope.

How a Lower HERS Score Can Support Long-Term Value

More Manageable Energy Use

A more efficient home requires less modeled energy to operate than its reference counterpart. While future utility costs cannot be guaranteed, reduced energy demand may help homeowners manage operating expenses over time.

Consistent Year-Round Comfort

Better insulation, high-performance windows and reduced air leakage can help minimize drafts and temperature fluctuations. In Park City, that year-round comfort is a meaningful part of luxury mountain living.

Future-Focused Construction

Energy codes and buyer expectations continue to evolve. A home designed around building science, verified efficiency and mountain-specific materials is better aligned with those changing priorities, strengthening its appeal beyond visible finishes.

Benefits for Second-Home Buyers

For a seasonal residence, efficiency matters both while the home is occupied and between visits. A well-performing envelope can support more consistent interior conditions during vacant periods and help the home return to a comfortable temperature when owners arrive.

The HERS score also gives second-home buyers an objective metric when comparing Park City new construction with older properties. It makes an otherwise invisible feature easier to evaluate before a long-term investment.

Frequently Asked Questions About HERS Scores

Is a Lower HERS Score Better?

Yes. A lower score indicates lower modeled energy use relative to the reference home.

Is a HERS Rating the Same as ENERGY STAR Certification?

No. A HERS score measures relative energy performance, while ENERGY STAR certification requires a home to meet separate program requirements and mandatory measures.

Does a Low HERS Score Guarantee Lower Utility Bills?

No. Actual bills depend on occupancy, weather, energy prices and homeowner habits.

Measurable Efficiency Behind the Mountain Views

At Shoreline Park City, long-term value extends beyond architecture, finishes and proximity to Park City. It also comes from the building science behind the walls.

A low HERS score translates those hidden construction decisions into a measurable number. For buyers seeking an energy-efficient mountain home near Jordanelle Reservoir, it offers valuable insight into comfort, energy use and long-term performance.