El Capitan High School
K-12 School in California, CA · 10410 Ashwood St., Lakeside · 92040
At a glance
El Capitan High School is a 214,879-square-foot K-12 school at 10410 Ashwood St., Lakeside in Lakeside, California, built in 1959. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 75 out of 100 (grade B), a site energy-use intensity of 35.9 kBtu/ft² and 517 tCO₂e of greenhouse-gas emissions. That score is higher than 41% of the 2,016 scored K-12 school buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 75 (band B) |
| Site EUI | 35.9 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 517 tCO₂e |
| GHG intensity | 2.4 kgCO₂e/ft² |
| Electricity | 1,279,356 kWh |
| Natural gas | 42,812 therms |
| Gross floor area | 214,879 sq ft |
| Source record | california:6825994:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 75 | -14 | 35.9 kBtu/ft² | 517 tCO₂e |
| 2023 | 89 | +1 | 35.0 kBtu/ft² | 473 tCO₂e |
| 2022 | 88 | 35.7 kBtu/ft² | 458 tCO₂e |
Compliance context
AB 802 (Public Resources Code §25402.10)
AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 10410 Ashwood St., Lakeside
- City
- California
- State
- California
- ZIP
- 92040
- Coordinates
- 32.86442, -116.91816
Within ~1 km
Nearby benchmarked buildings
- Woodglen Apartments (Wd148)score 99
Multifamily Housing · 141,940 sq ft
- Stoneridge (St59)score 90
Multifamily Housing · 116,270 sq ft
- 12905 Mapleview Stscore 58
Multifamily Housing · 99,999 sq ft
- Maplewood Apartments (Mp070)score 98
Multifamily Housing · 69,706 sq ft
- Maplewood: Maplewoodscore 100
Multifamily Housing · 68,956 sq ft
- Maplewoodscore 97
Multifamily Housing · 67,950 sq ft
See also: most efficient in California · biggest emitters
How does El Capitan High School compare with other K-12 school buildings in California?
The latest disclosures cover 2,128 K-12 school buildings in California, out of 40,029 buildings citywide. El Capitan High School's ENERGY STAR score of 75 compares with an average of 74 across the 2,016 that report a score; it scores higher than 41% of them and lower than 57%. Its site EUI of 35.9 kBtu/ft² is roughly in line with the average of 34.6 kBtu/ft². Its emissions intensity of 2.4 kgCO₂e/ft² is about 21% above the group average of 2.0 kgCO₂e/ft².
At 214,879 sq ft, it is about 66% above the average floor area of 129,123 sq ft for those buildings. It was built in 1959, 17 years earlier than the group's average year built (1976). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².
How has El Capitan High School's energy performance changed over time?
BuildingCensus holds 3 California disclosures for El Capitan High School, covering report years 2022–2024. Its ENERGY STAR score went from 88 in 2022 to 75 in 2024 (-13 points); its best year on file was 2023, at 89. Site EUI moved from 35.7 kBtu/ft² (2022) to 35.9 kBtu/ft² (2024), an 1% increase. Reported emissions went from 458 tCO₂e to 517 tCO₂e over the same span (up 13%).
What does an ENERGY STAR score of 75 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 75 means the building performs better than about 75% of its national peers. BuildingCensus bands the score into report-card grades; 75 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In California, 65% of scored buildings are at 75 or above.
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. El Capitan High School's 35.9 kBtu/ft² across 214,879 sq ft works out to about 7.7 billion Btu (2,261 MWh-equivalent) in 2024. The disclosure also reports 1,279,356 kWh of electricity and 42,812 therms of natural gas for the year.
Which law requires El Capitan High School to report its energy use?
El Capitan High School reports under AB 802 (Public Resources Code §25402.10), the legal basis of California's Building Energy Benchmarking Program (statewide), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record california:6825994:2024). AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
More K-12 school buildings in California
- Madison High· 214,846 sq ft · score 84 (B)
- Cosumnes Oaks High School· 214,610 sq ft · score 16 (D)
- Mills High School· 213,800 sq ft · score 20 (D)
- Rodriguez High School· 213,337 sq ft · score 100 (A)
- Costa Mesa High· 213,078 sq ft · score 49 (D)
- San Dieguito High School Academy· 212,474 sq ft · score 81 (B)
- K-12 School buildings in California· 2,128 benchmarked
- All California benchmarked buildings· AB 802 (Public Resources Code §25402.10)
- Most efficient large buildings in California
- Least efficient large buildings in California
- Biggest emitters in California
Frequently asked questions
What is El Capitan High School's energy grade?
El Capitan High School scores 75 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does El Capitan High School use?
Its 2024 site energy-use intensity was 35.9 kBtu/ft² across 214,879 sq ft, including 1,279,356 kWh of electricity and 42,812 therms of natural gas.
What are El Capitan High School's carbon emissions?
El Capitan High School reported 517 tCO₂e of greenhouse-gas emissions (2.4 kgCO₂e/ft²) for 2024.
Where is El Capitan High School?
El Capitan High School is at 10410 Ashwood St., Lakeside, in Lakeside, California 92040. Its coordinates are 32.86442, -116.91816 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is El Capitan High School and when was it built?
El Capitan High School has 214,879 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1959 as its year built. It is classed as K-12 school.
Is El Capitan High School covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2024 Building Energy Benchmarking Program (statewide) disclosure, which lists the buildings reporting under AB 802 (Public Resources Code §25402.10).
Working with California building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
About this data
Source: Building Energy Benchmarking Program (statewide) (AB 802 (Public Resources Code §25402.10)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “El Capitan High School, Lakeside, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/el-capitan-high-school-9e4361fa (data as of July 9, 2026).