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built templateenergy-performancewith-tool

Leni Calculation

Calculates annual lighting energy, Lighting Energy Numeric Indicator, and percentage saving against a reference LENI for an interior lighting zone.

inputs

6 fields

context

2 archetypes

engine

with-tool

outputs

3 scored fields

contract fields

Parameter Map

6 inputs to 3 scored outputs

  • installed_lighting_power_w

    float

    Installed lighting power in the zone

    100 to 200000W

  • annual_operating_hours

    float

    Annual lighting operating hours

    100 to 8760h/year

  • control_factor

    float

    Lighting control factor

    0 to 1-

  • daylight_factor

    floathidden in hard

    Daylight availability factor

    0 to 1-

  • zone_area_m2

    float

    Interior lighting zone area

    10 to 50000m2

  • reference_leni_kwh_m2_year

    float

    Reference LENI used for comparison

    1 to 100kWh/m2/year
annual_lighting_energy_kwhtol 0.03

Annual lighting energy consumption

leni_kwh_m2_yeartol 0.03

Lighting Energy Numeric Indicator

reference_saving_pcttol 0.03

Percentage saving against the reference LENI

visibility contract

Difficulty Ladder

all_giveneasy

Office zone with all values visible

all fields visible
all_givenmedium

Interior lighting zone selected from office or healthcare cases

all fields visible
partialhard

Healthcare zone with daylight factor embedded in context

daylight_factor

scenario bands

Archetype Atlas

office_zone

2 contexts

Open office lighting zone

installed_lighting_power_w1000 to 30000
annual_operating_hours1800 to 3500
control_factor0.6 to 0.9
daylight_factor0.5 to 0.9

office-floor / workplace-lighting

healthcare_zone

2 contexts

Healthcare interior lighting zone

installed_lighting_power_w5000 to 80000
annual_operating_hours3000 to 7000
control_factor0.7 to 1
daylight_factor0.6 to 1

healthcare / clinical-lighting

rendered task

Generation Preview

healthcare-healthcare-zone-preview

difficulty
hard
visibility
partial
archetype
healthcare_zone
site context
healthcare
instruction excerptleni-calculation_calc.py

visible fields

  • installed_lighting_power_w5000 to 80000 W
  • annual_operating_hours3000 to 7000 h/year
  • control_factor0.7 to 1 -
  • zone_area_m2300 to 10000 m2
  • reference_leni_kwh_m2_year20 to 60 kWh/m2/year

withheld schema

daylight_factorannual_lighting_energy_kwhleni_kwh_m2_yearreference_saving_pct
Healthcare interior lighting zone. healthcare. Required outputs: annual_lighting_energy_kwh, leni_kwh_m2_year, reference_saving_pct