NEOBIOME

OT_021: Fraunhofer ISE (2024) — Levelized Cost of Electricity, Renewable Energy Technologies

Properties5
typesource
source_typeother
authorKost, Christoph, Müller, Paul, Sepúlveda Schweiger, Jael, Fluri, Verena, Thomsen, Jessica
year2024
topicsenergy_generation, energy_storage_grid, food_systems_agriculture, community_finance, methodology_frameworks

7 min read

OT_021: Fraunhofer ISE (2024) — Levelized Cost of Electricity, Renewable Energy Technologies

Source

https://www.ise.fraunhofer.de/en/publications/studies/cost-of-electricity.html — original source (opens in a new tab; the file is not redistributed)

Summary

The 2024 update of Fraunhofer ISE’s recurring “Stromgestehungskosten Erneuerbare Energien” (Levelized Cost of Electricity) study — Europe’s authoritative LCOE benchmark for utility-scale and rooftop renewables, project-financed at market-standard WACC. Covers PV (small/large rooftop, utility, Agri-PV), PV+battery (three sizing ratios), onshore/offshore wind, biogas, solid biomass, conventional comparators (lignite, hard coal, CCGT, gas peakers, nuclear), and hydrogen-fired thermal plants. Reports both current (2024) LCOE and forecasts to 2045 via technology-specific learning curves. A short Section 6 transposes the methodology to high-irradiation regions (GHI 1,450 / 1,800 / 2,000 kWh/m²/yr), providing the closest international benchmark for NZ at the Lower Moutere pilot site.

Key claims

  • PV utility-scale CAPEX 2024 (Germany, ex-VAT): 700–900 EUR/kWp; rooftop large 900–1,600; rooftop small 1,000–2,000; Agri-PV 900–1,700 EUR/kWp. Battery CAPEX (usable capacity, installed): residential 1:1 ratio 500–1,000 EUR/kWh; large rooftop 2:1 ratio 450–800; utility 3:2 ratio 400–600 EUR/kWh. OT_021
  • PV utility-scale LCOE 2024 at GHI 1,450 kWh/m²/yr (S France — closest international analogue to Lower Moutere’s 1,450–1,500 GHI per CR_010): 3.5–5.4 €cent/kWh under real WACC 5.4%, 30-year life, 80% debt at 7%. PV rooftop small at the same irradiance: 5.3–11.8 €cent/kWh under real WACC 5.1%. Converted at ~1.85 NZD/EUR: ground-mount NZD 6.5–10 c/kWh, rooftop NZD 10–22 c/kWh. OT_021
  • Germany base-case LCOE 2024 (GHI 950–1,300): PV utility 4.1–6.9 €cent/kWh; PV rooftop small 6.0–14.4; onshore wind 4.3–9.2; offshore wind 5.5–10.3. Ground-mount PV LCOE below 4.2 €cent/kWh in S Germany already. Onshore wind and ground-mount PV are the cheapest electricity sources in Germany today — cheaper than any newly built fossil plant, including with CO2 prices at 2024 levels (75–90 EUR/t). OT_021
  • PV+battery LCOE 2024 by sizing ratio: utility 3:2 ratio 6.0–10.8 €cent/kWh; large rooftop 2:1 ratio 7.3–16.0; small rooftop 1:1 ratio 9.1–22.5. Larger battery-to-PV ratio increases LCOE (more storage CAPEX spread over same energy yield, with battery losses). Battery storage assumed 15-year lifetime with replacement at 30–50% of initial CAPEX (Table 8). OT_021
  • Bioenergy LCOE 2024 (with heat credit): biogas 20.2–32.5 €cent/kWh; solid biomass 11.5–23.5. Biomass with heat-credit CHP is the only bioenergy path competitive with PV; biogas remains expensive at any scale. CAPEX biogas 2,894–5,788 EUR/kW; biomass 3,473–5,788 EUR/kW. Fuel cost biomass 2.4 €cent/kWhₜₕ. Bioenergy LCOE assumes heat extraction at 25% (biogas) and revenues from heat in CHP configuration — without heat credit, LCOE rises substantially (biogas to 27.9, biomass to 17.1 €cent/kWh). OT_021
  • WACC structure (Table 2, real %): PV no-battery 3.2–3.5; PV+battery 2.2–2.5; onshore wind 3.9; offshore wind 6.0; biomass/biogas 4.2; conventional 6.4–7.8. Built on 80% debt / 20% equity across all technologies; debt 5% PV, 7% conventional, 7–8% nuclear; equity 5–12% by tech-risk premium; inflation 1.8%. Section 6 high-irradiation WACC raised to 5.1–5.4% real for PV — proxies country-risk premium outside Germany. The financing assumption is the dominant non-physical LCOE driver and must be NZ-recalibrated before any NI calculation uses these numbers. OT_021
  • Sensitivity for small PV (GHI 1,120): ±20% irradiation → ±18% LCOE; ±20% investment → ±16% LCOE; ±20% WACC → ±5% LCOE; ±20% lifetime → ∓10% LCOE; O&M smallest effect. For PV+battery, battery investment cost dominates (greater than PV investment effect in absolute terms). For onshore wind, investment and FLH share top sensitivity, with site selection identified as the primary cost reduction lever. OT_021
  • 2045 LCOE forecast Germany (learning rate 15% PV, 5% onshore wind, 7% offshore): PV utility 3.0–5.0 €cent/kWh; PV rooftop small 4.9–10.4; PV+battery utility (3:2) 3.7–7.6; onshore wind 3.7–7.9. Battery storage 130–700 EUR/kWh by 2045 (vs 400–1,000 today). PV remains the cheapest electricity source globally throughout the forecast. OT_021
  • Conventional plant operating costs 2024 already exceed renewable LCOE in Germany (Fig 22). Lignite OPEX > 11 €cent/kWh; CCGT > 10; CCGT-with-heat-credit 7.4–9.7. By 2045, CO2 price scenarios (175–375 EUR/t) push fossil OPEX above any newly built renewable LCOE — the merit-order crossover point. OT_021
  • LCOE methodology (Appendix): NPV-based, LCOE = (I₀ + Σ Aₜ/(1+i)ᵗ) / Σ Mₜ,ₑₗ/(1+i)ᵗ. Real WACC throughout, all cash flows real 2024 EUR. Heat credit method for CHP (heat revenue subtracted from total cost before LCOE division). Learning curve C(xₜ)=C(x₀)·(xₜ/x₀)⁻ᵇ, LR = 1−2⁻ᵇ. Mixing nominal and real cash flows explicitly disallowed. This is the recommended methodological template for the NI energy calculation skill. OT_021

Neobiome Intelligence relevance

This source supplies both transferable structural benchmarks and methodological scaffolding for the NI energy skill:

  1. Lower Moutere PV LCOE benchmark. Section 6 GHI 1,450 case provides the closest available international LCOE for the Tasman pilot conditions. PV utility-scale 3.5–5.4 €cent/kWh ≈ NZD 6.5–10 c/kWh is a defensible upper-Germany / lower-Mediterranean LCOE bookend. The actual NZ number will sit above this once NZ debt rates (currently ~6–7% vs German 5%) and freight/installation premium are applied — likely NZD 8–14 c/kWh for community-scale ground-mount PV at the pilot site, pending NZ recalibration (RT_110).
  2. CAPEX bookends for NZ recalibration. PV utility 700–900 EUR/kWp × 1.85 ≈ NZD 1,295–1,665/kWp gives the floor; NZ installation likely 1.5–2× this in practice. Battery 400–600 EUR/kWh utility-scale ≈ NZD 740–1,110/kWh — close convergence with CR_008 which found NZD 300–550/kWh for commercial-scale BESS, confirming NZ commercial battery pricing is at or below European utility levels.
  3. Sizing-ratio LCOE structure for PV+battery. The three battery-to-PV ratios (1:1 / 2:1 / 3:2) give the LCOE penalty for over-storing. A community pilot at ~500 kWp + 1,500 kWh battery sits between the 3:2 utility and 2:1 large-rooftop cases — implied LCOE band 6.0–16.0 €cent/kWh in Germany; recalibrated to NZ with NZ irradiance (~1,450 vs German 1,120) and NZ rates, likely NZD 12–25 c/kWh — competitive with the NZ retail import 36–40 c/kWh (CR_011) but above the commercial PPA range 10–15 c/kWh.
  4. LCOE formula and learning-curve methodology for the NI energy calculation skill. The Appendix gives the canonical NPV-based LCOE formula and the learning-curve forecast model. NI should adopt these forms directly, parameterised to NZ data, rather than invent a custom methodology.
  5. Agri-PV transferability. Agri-PV LCOE at GHI 1,300 falls between PV rooftop large and PV utility-scale (5.2–11.9 €cent/kWh in S Germany). Directly relevant if the project considers Agri-PV at a NZ site (national scope per D_002) — but requires NZ feasibility assessment (consenting, livestock-vs-arable underlay) outside this study’s scope.

What does NOT transfer to NZ:

  • German CO2 certificate prices (75–90 → 175–375 EUR/t) — NZ ETS prices and structure differ materially.
  • German fossil power costs and merit-order crossover — NZ grid is already 88% renewable (RD_001); the “renewable cheaper than fossil” comparison is structurally different.
  • German subsidies / KfW low-rate loans referenced as a financing-cost driver — no NZ analogue.
  • Conventional plant LCOE (lignite, hard coal, nuclear) — not relevant to NZ build-out.

Research targets

Documents to retrieve

  • RT_108 — Fraunhofer ISE (2024b) Agri-Photovoltaik: Chance für Landwirtschaft und Energiewende (cited in references): primary Agri-PV economics + design study, directly relevant if the project considers Agri-PV at a NZ site (national scope per D_002). Available from ise.fraunhofer.de.
  • RT_109 — Lazard (2024) Levelized Cost of Energy+: explicitly cited as CAPEX/LCOE source for Table 1; the global utility-scale LCOE benchmark complementing Fraunhofer ISE. Available from lazard.com.

Research gaps

  • RT_110 — NZ-specific WACC and CAPEX for community-scale PV+battery at Lower Moutere conditions (GHI 1,450, commercial DG context, NZ debt rates 6–7%). Required to recalibrate every OT_021 LCOE number used in NI calculations. Likely sources: ANZ/Westpac project finance benchmarks; EECA CREF actual financing terms; CR_008 commercial BESS installer quotes.
  • RT_111 — Battery replacement cost at year 15 for NZ community-scale BESS (OT_021 assumes 30–50% of initial CAPEX). NZ LFP module pricing trajectory needed to validate the assumption for NI 25–30-year LCOE forecasts.

Connections

Links to

Sources (3): CR_008 · CR_011 · RD_001

Referenced by

Sources (5): OT_025 · OT_033 · OT_115 · RD_003 · RD_005

EDT domains (1): D01: Renewable Energy & Storage Systems

SSI indicators (1): I01: Financial & Economic Self-Sufficiency

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