Your climate investigation caught the City Council's attention. Now they want to tackle the city's built environment โ the homes, offices, and public buildings that account for roughly 40% of energy use in most cities. That's where AI can make the biggest difference:
Buildings & Energy Innovation Grant
$500,000
Use AI to find the most energy-wasteful buildings in the city — before anyone has to inspect them by hand.
๐ข Your city has a problem it can't solve alone. Buildings are wasting massive energy — but nobody knows which ones.
๐ Step 1: The Inspector's Dilemma
Before we design an AI solution, let's understand why we need one.
Here are your city's buildings. Which ones are wasting energy?
The city needs to find its biggest energy wasters, but most buildings have never been assessed. Right now, there's no quick way to tell an efficient building from a wasteful one.
What if we sent inspectors?
12,000buildings÷10inspectors=~1 year
Assuming each inspector rates 5 buildings per day
While we wait, every year…
0
families overpaying on energy
0
tonnes CO₂ wasted
0
cars' worth of pollution
But first, you need to teach it what to look for.
๐งฌ Step 2: Teach Your AI System What to Look For
To predict which buildings waste energy without visiting them, your AI system
needs specific data inputs. In AI, these inputs are called "features" —
think of them as clues that help the AI make predictions.
Select the 3 best clues for predicting building
energy use:
๐ Floor Area
Total building
size in square metres
Bigger buildings use more energy — size
is a key clue!
โ Weather Data
How hot or cold
it gets where the building is
Cold winters mean more heating; hot summers
mean more cooling!
โฐ๏ธ Elevation
Altitude above
sea level
Interesting idea, but elevation matters much
less than the other clues.
๐ค Owner's Name
Person or
company who owns the building
A name doesn't tell us anything about energy
use!
๐๏ธ Number of Floors
How many stories tall
the building is
Taller doesn't mean less efficient โ a 2-story building and a 20-story building can have the same energy use per square metre. Floor area already captures size better.
๐ Year Built
When the
building was constructed
Older buildings often have poor insulation
and outdated heating and cooling systems!
๐ Step 3: Define the Energy Score
Should your AI system compare buildings by total energy used, or energy per square metre?
What Should Your AI System Predict?
โก
Total energy used
How much
energy the whole building uses
๐
Energy per square metre (EUI)
Energy score
that accounts for building size
Which building wastes more energy per square metre? Pick one.
Round 1
โ
Coffee Shop
Uses 500,000 energy units/yr
Size: 186 mยฒ
EUI 250 โ wasteful!
VS
๐ญ
Warehouse
Uses 3,000,000 energy units/yr
Size: 9,290 mยฒ
EUI 30 โ efficient!
Round 2
๐ซ
1960s School
Uses 1,500,000 energy units/yr
Size: 929 mยฒ
EUI 150 โ wasteful!
VS
๐ข
Office Tower
Uses 8,000,000 energy units/yr
Size: 18,580 mยฒ
EUI 40 โ efficient!
That's the power of EUI
Energy Used ÷ Building Size = EUI
High EUI = wasteful — the building burns through a lot of energy for its size. Low EUI = efficient — the building makes good use of every square metre.
Without this score, a big warehouse always looks worse than a tiny shop — even when the shop wastes 8× more per square metre. Your AI system will use EUI to spot the real energy wasters.
๐๏ธ Step 4: Find the Data
Now that you've designed your AI system, you need data that matches your plan —
enough real building records for it to learn patterns.
We'll search a public database of real building energy records from the National Renewable Energy Laboratory (NREL).
Almost Done — Quick Check
Your AI System Design
๐ Answer both to unlock your results:
1
Why can't cities just send inspectors to every building?
2
What does EUI measure?
๐
AI Data Plan Complete!
Great work! You've designed the data strategy for your building efficiency AI.
๐
Investigation
โ Complete
โ
๐งฌ
Data Design
โ Complete
Features: Floor Area, Weather, Year Built
โ
๐ค
AI Training
Up Next
Activity 3
๐ฆ NEXT: You'll learn how AI actually learns from data — then build your own model and compete on a live leaderboard.