🧺 Te Kete Ako

Renewable Energy & Traditional Knowledge

Renewable Energy & Traditional Knowledge · Years 10–13

Year LevelYears 10–13
TypeStudent handout — classroom resource

Ngā Whāinga Akoranga · Learning Intentions

  • Investigate a significant question using evidence from multiple sources
  • Analyse and evaluate information to form and support a reasoned position
  • Connect learning to real-world contexts, including Aotearoa New Zealand settings
  • Communicate understanding clearly and accurately for a specific audience

Paearu Angitu · Success Criteria

  • I use at least two sources and can evaluate their credibility
  • My position is clearly stated and supported by specific evidence
  • I can connect my learning to at least one real-world Aotearoa context
  • My communication is clear, organised, and appropriate for the audience
⚡ Science & Technology 🌿 Kaitiakitanga 🎓 Year 10–13 🇳🇿 NZC Level 5–8

Renewable Energy & Traditional Knowledge

🌊 Kaitiakitanga as an energy design framework
"Hutia te rito o te harakeke, kei hea te kōmako e kō?" — Pluck out the heart of the flax bush, where will the bellbird sing?
(Remove the centre of an ecosystem and the whole system unravels — the foundation of sustainable energy design.)

Aotearoa New Zealand generates over 85% of its electricity from renewable sources — one of the highest proportions in the world. Yet this achievement builds on a foundation far older than any wind farm: Māori people have practised kaitiakitanga (guardianship of the natural world) for 700+ years, developing sophisticated knowledge of wind patterns, tidal flows, geothermal fields, and seasonal energy cycles. This handout connects modern renewable energy science to mātauranga Māori ecological intelligence.

85%
NZ electricity from renewables (2024)
58%
Hydro generation share
17%
Geothermal generation share

Part 1 — Aotearoa's Energy Landscape: The Numbers

New Zealand's geography — volcanic plateau, Southern Alps, Roaring Forties winds, 2,500 km coastline — creates exceptional renewable energy potential. The following table shows the current generation mix:

⚡ NZ Electricity Generation Mix (2024 data — GWh)

Source Annual GWh % of Total Key Sites Māori connection
Hydro 24,800 58% Mānapōuri, Waitaki, Waikato Awa (rivers) as living ancestors
Geothermal 7,200 17% Whakaari, Rotorua, Taupō Te Kore (primal void) — Tūmatauenga's fire
Wind 3,800 9% Te Apiti, West Wind, Meridian Tāwhirimātea (god of winds)
Gas 4,300 10% Huntly, Stratford —
Solar (rooftop) 1,900 4% Distributed Tama-nui-te-rā (the sun god)
Other 900 2% Various —
  1. Create a pie chart showing the six energy sources. Calculate the angle for each sector (angle = % × 3.6°). Label each sector with both the source name and percentage.
    Hydro: 58% × 3.6 = 208.8° | Geothermal: 17% × 3.6 = 61.2° | Wind: 9% × 3.6 = ?
  2. The government target is 100% renewable by 2030. Currently gas produces 4,300 GWh. If wind growth is 400 GWh/year and solar growth is 350 GWh/year, in what year will wind + solar collectively replace gas generation? Show your calculations.
    Year needed = current year + (gap ÷ annual growth rate)
  3. Energy density comparison: A geothermal plant at Taupō produces 2.4 GW from a 12 km² surface area. A solar farm producing the same power requires approximately 24 km². Calculate the "energy density ratio" (GW/km²) for each. Why does this matter for land use — and how does it connect to whenua (land) protection?

Part 2 — Mātauranga Māori as Energy Intelligence

Before European contact, Māori had developed sophisticated systems of ecological observation that map directly onto modern renewable energy science. Maramataka (the Māori lunar calendar) encoded wind patterns, tidal cycles, and seasonal energy availability used for navigation and planting.

🌊 Tidal Knowledge: Kai Moana and Tidal Energy

Māori fishers around Kaipara Harbour (New Zealand's largest harbour) developed precise knowledge of tidal cycles, using them for safe passage and optimal fishing. The tidal range at Kaipara can reach 3.5 m — a significant energy resource. Tidal power output follows:

P = ½ × ρ × A × v³    (where ρ = water density 1025 kg/m³, A = turbine area m², v = current speed m/s)

A tidal turbine with 15 m diameter rotor in a 2.5 m/s current. Calculate power output. Area = π × r² = π × 7.5² = 176.7 m². P = 0.5 × 1025 × 176.7 × (2.5)³ = ?

  1. Complete the tidal power calculation above. Convert your answer to kW and MW. If Kaipara Harbour has 50 potential turbine sites, what is the total potential capacity?
  2. Kaitiakitanga constraint: The Kaipara Harbour is a mahinga kai (fishing ground) under Treaty settlement governance by Ngāti Whātua. A tidal array could generate 280 MW but reduces tidal flow by 12%, affecting fish migration patterns. Using the principle of intergenerational equity (te whānau generation planning), construct an argument FOR or AGAINST development. Include: energy benefit, ecological cost, and a proposed compromise position.
  3. Wind and Tāwhirimātea: The Māori god of winds, Tāwhirimātea, engaged in epic battle with his siblings when Ranginui (sky father) and Papatūānuku (earth mother) were separated. Research: which wind turbine sites in New Zealand are on or near land with significant Treaty settlements? What consultation obligations exist under the RMA (Resource Management Act) and the Marine and Coastal Area Act?

Part 3 — Design Challenge: The 2050 Pā Energy System

You are the energy planner for a rural marae community of 200 whānau in Northland. The community is 45 km from the nearest grid connection. Your task: design a 100% renewable off-grid energy system grounded in kaitiakitanga principles.

📊 Community Energy Load Data

Load category Peak demand (kW) Daily kWh Notes
Whānau homes (40 units) 80 640 Heating, cooking, appliances
Marae complex 25 180 Kitchen, lighting, AV
School (kura kaupapa) 15 60 Computers, lighting (daytime)
Horticulture (irrigation pumps) 12 48 Seasonal variation ±30%
Workshop/wharenui 8 35 Power tools, carving equipment
TOTAL 140 963

Available renewable resources at the site:

  • ☀️ Solar: 5.2 peak sun hours/day (annual average). Each 400W panel costs $320 installed.
  • 💨 Wind: Average 7 m/s. A 10 kW turbine (hub height 30m) generates 22,000 kWh/year. Cost: $28,000 installed.
  • 🌊 Stream: 45 L/s flow, 18 m head. Micro-hydro potential. Cost: $85,000 for 12 kW system.
  • 🔋 Battery storage: $600/kWh. Target: 2 days of autonomy (no sun/wind).
  1. Calculate the number of solar panels needed to generate 963 kWh/day.
    Panels needed = Daily kWh ÷ (panel kW × peak sun hours) = 963 ÷ (0.4 × 5.2) = ?
  2. The micro-hydro stream runs year-round. Calculate its annual output and daily average. How does adding micro-hydro change the number of solar panels required?
    Micro-hydro annual kWh = P(kW) × 8,760 hours × capacity factor (0.85 for run-of-river)
  3. Design the optimal mix: what combination of solar, wind, and micro-hydro minimises total cost while meeting the 963 kWh/day demand? Calculate battery storage required for 2 days of autonomy at average demand. What is the total system cost?
  4. Kaitiakitanga assessment: Rate your system design against 5 kaitiakitanga principles: (1) Intergenerational equity — will this system still serve in 50 years? (2) Minimal footprint — land use required? (3) Water/stream health — does the micro-hydro affect the awa? (4) Community ownership — who controls the energy system? (5) Cultural coherence — does the system design fit with the marae's values?

🌿 Whakamutunga — Ko te taiao tō tātou kāinga

The world is turning to renewable energy not because it is new, but because it is ancient — drawing on forces that have always existed: sun, wind, water, earth. Māori people never forgot this. The question for the 21st century is not can we generate clean energy? but who controls it, who benefits, and who bears the cost?

Te wero (challenge): Research a real NZ renewable energy project that involves Māori partnership (e.g., Tuaropaki Trust geothermal, Mercury's Miramar wind, or Ngāi Tahu and South Island hydro). Write a 300-word case study on how it balances kaitiakitanga and energy production.

🌿 Ngā Rauemi Hono — Related Resources

Hononga Marautanga · Curriculum Alignment

Social Sciences — Tikanga ā-Iwi

Level 3–4: Investigate social, cultural, environmental, and economic questions; gather and evaluate evidence from diverse sources; communicate findings and reasoning clearly for different audiences and purposes.

English — Communication

Level 3–4: Read, interpret, and evaluate information texts; write clearly and purposefully for specific audiences; apply critical thinking skills to evaluate sources and construct well-reasoned responses.

Tuhia ōu whakaaro · Write Your Thoughts

Reflect on your learning. What was the most important idea? What question do you still have?

Aronga Mātauranga Māori

This resource sits within a kaupapa that recognises mātauranga Māori as a living knowledge system with its own frameworks, values, and ways of understanding the world. The New Zealand Curriculum calls for learning that reflects the bicultural partnership of Te Tiriti o Waitangi, which means every subject area has an obligation to engage authentically with Māori perspectives — not as cultural decoration but as substantive contributions to how we understand our topics. The concepts of manaakitanga (care for others), kaitiakitanga (guardianship), whanaungatanga (relationship and belonging), and tino rangatiratanga (self-determination) provide a values framework applicable across all learning areas, and all are relevant to the work in this handout.

Ngā Rauemi Tautoko · Resources already provided

This handout is designed to be used alongside other resources in the same unit. Related materials are linked in the unit planner. All content is provided — no additional preparation is required to use this handout in your classroom.

📋 Teacher Planning Snapshot

Ngā Whāinga Ako — Learning Intentions

Students will engage with this resource to build understanding of Aotearoa New Zealand's ecosystems, biodiversity, and the role of kaitiakitanga in environmental stewardship.

Ngā Paearu Angitū — Success Criteria

  • ✅ Students can explain key concepts from this resource using their own words.
  • ✅ Students can connect the content to real-world environmental contexts in Aotearoa.

Differentiation & Inclusion

Scaffold support: Provide sentence starters, word banks, or graphic organisers to scaffold access for students who need it. Offer entry-level and extension tasks to address a range of readiness levels.

ELL / ESOL: Pre-teach key vocabulary and provide bilingual glossaries where available. Allow students to respond in their home language first.

Inclusion: Use accessible formats — clear font, adequate whitespace, structured tasks. Neurodiverse learners benefit from chunked instructions and choice in how they demonstrate understanding.

Prior knowledge: Best used after the relevant lesson sequence. No specialist prior knowledge required for entry-level engagement.