NEOBIOME

CR_002: Quantitative Frameworks for Measuring Self-Sufficiency at Community and Eco-Village Scale (Perplexity…

Properties5
typesource
source_typecompiled_research
authorAI deep research
year2026
topicsself_sufficiency_theory, methodology_frameworks, energy_generation, water_supply_treatment, food_systems_agriculture

5 min read

CR_002: Quantitative Frameworks for Measuring Self-Sufficiency at Community and Eco-Village Scale (Perplexity…

Summary

Comprehensive synthesis of quantitative self-sufficiency measurement frameworks across energy, water, and food domains at community and eco-village scale. Covers domain-specific ratios (ESR, WSR, FSR), composite index approaches (Wang 2025 SSI, WEF Nexus Index), ecological accounting tools (Ecological Footprint, MFA), neighbourhood rating systems (LBC, GEN CSA, NSATs), and a cross-framework comparison table. Key finding: domain-specific ratios are well-established and peer-reviewed; composite multi-domain indices remain in development or working-paper form.

Key claims

  • No single universally adopted composite quantitative framework for community-scale SS exists in peer-reviewed literature post-2010. CR_002
  • Five distinct measurement streams: (1) domain-specific ratios; (2) composite indices; (3) ecological footprint/MFA; (4) neighbourhood rating systems; (5) one multi-domain SS index (working paper). CR_002
  • ESR = E_self-consumed / E_total-demanded; SCR = E_self-consumed / E_total-produced-locally — complementary energy metrics. CR_002
    • ⚠ Provenance: these ESR/SCR ratios are the self-sufficiency = C/(A+C) and self-consumption = C/(B+C) pair canonically formulated for a single grid-connected building by Luthander, Widén, Nilsson & Palm (2015, Applied Energy 142:80-94) — the earlier, widely-cited primary the community-scale ESR/SCR naming (Huang et al. 2022) builds on. Same ratios, different names. LIT_072
  • WSR = Q_lr / Q_td — highly dependent on system boundary definition. CR_002
  • FSR = Production / (Production + Imports − Exports) × 100; improved SSFSSR variant converts to primary product equivalents across 64 commodity groups. CR_002
  • Wang (2025) SSI = ∛(SL × QL × S): SL = demand-share weighted sum across nutrition/water/energy/waste; QL = adapted GNH Index (33 indicators); S = 6-sub-indicator sustainability score. CR_002
  • Wang SSI distance-bias penalty: imports within 10 km penalised at 0.2×; imports over 100 km penalised at 1.0×. CR_002
  • Gullberg et al. (2025): first peer-reviewed multi-domain framework co-calculating energy, water, nutrient SS with consistent boundaries in single study. CR_002
  • Sieben Linden empirical benchmarks: 67.1% electricity SS, 100% heat SS, 0% gas SS; total EF 3.08 gha/person (56% of German average). CR_002
  • Living Building Challenge is the only major certification requiring 100% self-sufficiency as pass/fail (≥105% net positive for water and energy). CR_002

Key gaps identified

  1. No integrated multi-domain quantitative framework at village scale using uniform units — Wang (2025) SSI addresses this via demand-share normalisation but is unvalidated empirically. CR_002
  2. Building/shelter self-sufficiency is handled separately from energy/water/food in all frameworks. CR_002
  3. Temporal dynamics absent from most frameworks — only Wang SSI includes a growth-curve sustainability sub-indicator. CR_002

Underlying sources

Key peer-reviewed sources within this synthesis (selected):

  • Huang et al. (2022), Applied Energy — ESR/SCR optimisation across building community
  • Rygaard, Binning & Albrechtsen (2011), J. Environmental Management — WSR formalisation (primary → LIT_063)
  • Bocco, Gerace & Pollini (2019), Routledge — Sieben Linden ecological footprint study
  • Keil et al. (2018), Environmental Science & Technology — neighbourhood 100% energy SS, Switzerland
  • Skrzypczyński (2021), European Countryside — European ecovillage survey (n=60)
  • Gullberg, Wang & Eriksson (2025), ASCE Journal of Urban Planning and Development — multi-domain SS, Sweden
  • Wang, Sophia (2025), Stanford working paper — SSI composite index
  • Simpson & Jewitt (2019), Science of the Total Environment — WEF Nexus Index

Notes

This source establishes the primary quantitative calculation architecture for Neobiome Intelligence. Domain-specific ratios (ESR, WSR, FSR) form the calculation layer; Wang (2025) SSI provides the composite aggregation architecture. Bustamin et al. (CR_001, LIT_001) is repositioned as outcome assessment, not primary calculation framework.

Research targets

Documents to retrieve

  • [RT_016] Wang (2025) — Self-Sufficiency Index (SSI) working paper; multi-domain composite SSI = ∛(SL × QL × S) for village scale; most formally specified multi-domain self-sufficiency index in the literature; directly informs NI calculation architecture (Stanford working paper, Feb 2025). → NI design, I01–I09
  • [RT_017] Bocco, Gerace & Pollini (2019) — The Environmental Impact of Sieben Linden Ecovillage (Routledge, ISBN 9780367670320); most comprehensive multi-domain ecological accounting of a single ecovillage: electricity 67.1%, firewood 100%, gas 0% self-sufficient. → I01, I03, I04
  • [RT_018 → LIT_063, verified 2026-07-16] Rygaard, Binning & Albrechtsen (2011) — formalised urban water self-sufficiency ratio WSR = Q_lr/Q_td; foundational formula for the D03 water_ssi measure (J. Environmental Management 92(1):185-194, doi:10.1016/j.jenvman.2010.09.009). ⚠ Prior “Water Research / doi:10.1016/j.watres.2011.03.022 / I03” was a citation error (wrong journal+DOI, and I03 is Cultural Heritage — this is a D03 resource-domain measure). → D03
  • [RT_019] Gullberg, Wang & Eriksson (2025) — Potential Self-Sufficiency in Energy, Water, and Nutrients in a Swedish urban neighbourhood; only peer-reviewed study co-calculating energy/water/nutrient SSI in a single framework with consistent boundaries (J. Urban Planning Dev., ASCE, doi:10.1061/JUPDDM.UPENG-5334). → NI design, I01, I03, I04
  • [RT_035] Keil et al. (2018) — neighbourhood-scale energy self-sufficiency in Switzerland; 100% energy self-sufficiency technically feasible at 2–3× grid parity (Environ. Sci. Technol., doi:10.1021/acs.est.7b04182). → D01, I01
  • [RT_036] Huang et al. (2022) — characterisation and optimisation of energy sharing ESR/SCR dual indicators for building community; storage asymptote finding (Applied Energy 326, doi:10.1016/j.apenergy.2022.119969). → I01, D01
  • [RT_037] Hurtado et al. (2024) — systems modelling of WEF Nexus for rural communities using participatory systems modelling and network analysis (PMC, doi:10.1371/journal.pwat.0000175). → NI design

Connections

Links to

Sources (4): CR_001 · LIT_001 · LIT_063 · LIT_072

Referenced by

Sources (6): CR_003 · LIT_049 · LIT_063 · LIT_064 · LIT_077 · LIT_079

EDT domains (5): D01: Renewable Energy & Storage Systems · D02: Smart Food Systems & Agriculture · D03: Water, Waste & Circular Systems · D04: Sustainable Habitat & Building Technology · D06: Smart Health & Wellbeing

SSI indicators (3): I02: Food Security & Sustainable Agriculture · I07: Fulfilment of Basic Needs · I09: Environmental Sustainability

Concepts (1): Self-Sufficiency Calculation Framework

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