I06: Resistance to External Shocks

Indicators framework: LIT_001 · Calculation methodology: self_sufficiency_calculation · EDT convergence: edt_ssi_convergence

Definition

As named in the primary: Resistance to external shocks (Table 2). Bustamin et al. describe it as preparedness for problems that may occur in future, risk management, product and market diversification and supply-chain management, and the ability to identify external changes and threats while protecting core functions and addressing disruptions quickly. LIT_001 (p.7)

As rendered for this project: The capacity of a village to anticipate, absorb, and recover from external disruptions, including economic downturns, natural disasters, pandemics, or supply chain disruptions, through risk management, diversification, and adaptive governance. (This wording is the project’s working definition, restated from CR_001, the synthesis of the primary. The primary’s own words are above.)

Relevance to Neobiome

[Why this indicator matters for eco-village design. What achieving it looks like in practice.]

Evidence

Song (2020): resilience defined as the ability to identify external threats, protect core functions, and address disruptions quickly — grounded in SEP’s self-immunity principle. CR_001
Jeerat et al. (2023): preparedness planning is an explicit resilience indicator in SEP agricultural communities. CR_001
Distributed renewable production is architecturally equivalent to the internet — delivers fundamentally higher supply security than centralised systems; centralised systems (e.g., nuclear) appear stable but are catastrophically vulnerable when failures occur. Interview II [INT_002]
Grid connection is essential for community resilience even in self-sufficient communities — as a backup/flexibility mechanism; isolated networks are the most vulnerable. Texas (February 2021), Spain (April 2025 blackout), and Australia all demonstrate that network isolation amplifies fragility. Interview II [INT_002]
Dunkelflaute (simultaneous no-wind, no-sun) is a real European risk; mitigated by sufficient storage capacity, flexible gas peakers, or hydrogen storage. All technologically feasible — primarily an economic question. Interview II [INT_002]
Spanish blackout (April 2025) caused by poor manual grid regulation, not by renewables themselves — validates AI-based automated grid management as a resilience strategy. Interview II [INT_002]
Hybrid decentralised-first mesh architecture is designed specifically for storm scenarios: “we’re decentralised first because we have to work when there’s a storm, when everything else is washed out” — central systems cannot be reached when bridges are down and fibre is gone. Interview III [INT_003]
Mariko Earthgrids Wairoa pilot demonstrates the failure mode: regional council’s 3 sensors feed a cloud dashboard that is inaccessible precisely when bridges and comms are down; Mariko’s LoRa mesh continues operating independently, providing actionable data during the event. Interview III [INT_003]
Graceful degradation as a design principle: system always works at a basic level (emergency comms, sensor reads); richer capability (cloud sync, fuller dashboard) returns as power and connectivity recover. Solar + battery nodes run approximately 2 weeks without sun. Interview III [INT_003]
Physical community structures (churches, marae) are superior resilient backup nodes — better built than purpose-built shelters, outlast them, carry existing community trust; recommended for server and data hub placement. Interview III [INT_003]
Satellite terrain monitoring provides site-selection intelligence for hazard resilience: landslide history, earthquake ground deformation, and fault-line proximity are detectable from SAR data and are more current than static geological maps. Interview IV [INT_004]
Flood extent mapping before and after storm events is “quite easy” with satellite data (SAR works through cloud cover); provides post-event damage assessment for community planning and recovery without needing to deploy monitoring infrastructure in advance. Interview IV [INT_004]
Satellite EO and local IoT sensors (e.g., LoRa river-level monitors) are complementary resilience layers: satellites provide broad area coverage and historical change detection; IoT provides real-time hyperlocal data; optimal architecture uses both. Interview IV [INT_004]
NZ’s HVDC link between North and South Islands is a structural grid vulnerability — a single-point failure that could isolate either island from the national grid; community MGs provide localised resilience against HVDC failure. LIT_002
Cyclone Gabrielle (and seismic events) demonstrated the vulnerability of centralised energy infrastructure to extreme weather in NZ; community MG islanded operation ensures uninterrupted power supply to critical facilities during grid failure. LIT_002
Islanded operation capability: community MGs can disconnect from the main grid when necessary, ensuring supply continuity to hospitals and emergency response centres during failures from extreme weather or natural disasters. LIT_002
Localised generation reduces single-point-of-failure risk: if one MG segment is affected by extreme weather, other segments continue functioning, minimising downtime. LIT_002
Totarabank Eco-Village grid-tied microgrid study (Mohseni et al. 2020) explicitly prices energy resilience: tolerating two sustained 4-day grid outages per year adds only ~16% to total discounted cost (≈ NZ $5,892) over the non-resilient optimum — resilience is cheap at NZ community scale. The two-way sensitivity (outage frequency 1-20/yr \times mean repair 1-168 h) formally maps the cost-of-resilience trade-off: LCOE rises ~$ 0.10→ $0.27/kWh and TNPC ~$ 36k→>$110k as grid reliability falls, with the optimal architecture shifting from PV-adding to WT/BESS-adding under frequent night-time outages. LIT_032
Totarabank MG (Mohseni et al. 2021): the optimised PV/WT/battery system delivers grid-outage survivability 100% and battery-bank autonomy 14 h, versus 0 h for HOMER Pro’s cost-optimal battery-less design — the battery, added for price arbitrage, also produces a resilience by-product at this scale. LIT_083
COVID-19 pandemic and Russia-Ukraine war (2022) caused abrupt changes in energy demand, oil price fluctuations, supply chain disruptions, and energy security failures in centralized energy sectors — bibliometric validation that geopolitical and pandemic shocks are real and recurring threats requiring decentralized energy resilience. LIT_004
Energy self-sufficiency via local agricultural waste streams provides resilience against natural catastrophes and external energy supply interruptions — a community generating its own energy from on-site biological feedstock is structurally insulated from grid failure and fuel supply disruption. LIT_003
NZ national energy self-sufficiency: 73% in 2023 — the country produces only 73% of its own energy needs; oil (100% imported since Marsden Point closure) and gas are the key import gaps. Community energy self-sufficiency directly addresses this national structural vulnerability. RD_001
NZ gas reserves fell 20% to 1,300 PJ in 2023; deliverability projected below national demand from 2027 — gas is not a viable long-term backup fuel for NZ communities; gas network covers North Island only. RD_001
Marsden Point Oil Refinery ceased March 2022 — NZ now 100% import-dependent for refined liquid fuels including diesel; all backup generator fuel is geopolitically exposed and subject to global supply chain disruption. RD_001
National energy-security baseline refresh (2024 data year — supersedes the RD_001 2023 figures above). Energy self-sufficiency slipped to 72.1% in 2024 (down 1.5 pts; 359 PJ of primary energy imported); natural gas reserves fell 27% to 948 PJ at 1 Jan 2025 — ~66% of the drop a downward reserves revision, not extraction — with production projected below 100 PJ within two years; and NZ remains 100% import-dependent for refined liquid fuels since Marsden Point. Fresher confirmation than RD_001 that gas is not a durable long-term backup fuel and all diesel backup is geopolitically exposed — the national backdrop against which community energy self-sufficiency is valued. RD_026
National energy-security refresh (2025 data year - supersedes the RD_026 2024 figures above). Self-sufficiency ticked up to 72.6% (from 72.1% - a coal-production artifact of the Tawhai Tunnel reopening), but the backup-fuel picture worsened: natural gas reserves fell a further 23% to 731 PJ at 1 Jan 2026 (two consecutive steep annual declines: -27%, then -23%), the Maui field is signalled to reach end of life by the end of 2026, gas-fired generation hit a 44-year low partly for lack of gas supply, the Huntly coal stockpile was deliberately rebuilt to a 13-year high of 1.16 Mt against winter risk, and refined liquid fuels remain 100% imported (diesel 45% of oil imports). The grid gets greener while its fossil backstop gets thinner and more import-exposed. RD_039
Concrete grid-resilience failure: Cyclone Gabrielle (Feb 2023) flooded the Redclyffe substation in Napier, disconnecting Hawke’s Bay and Gisborne from the national grid and taking down communication infrastructure; Transpower issued a Grid Emergency Notice — a documented centralised-grid failure mode that community-scale energy autonomy insulates against. RD_014 (Box C.1)
Tenure insecurity and disaster exposure degrade well-being: in the Canterbury earthquakes uninsured low-income households were ineligible for Earthquake Commission compensation (an “Inverse Care Law” effect) and renters/boarding-house residents were disproportionately displaced into homelessness — housing security is itself a resilience determinant. LIT_044
Identical housing interventions yield larger health gains for already-disadvantaged groups: the Māori Home Injury Prevention Intervention cut home-modification-specific injuries by 45%/year vs 39% in the general HIPI — equity-weighted resilience benefit relevant to a community design serving Māori and low-income residents. LIT_044
EWF nexus 84-paper synthesis: “decentralization exhibits higher resilience levels thanks to the diversity of contributing systems which reduces the impact of shocks and disruptions” — cross-sector validation that distributed energy, water, and food systems structurally outperform centralised equivalents on resilience. LIT_007
“Having multiple sources for every resource is fundamental to maintaining a continuous supply of products in instances of operational dysfunctions or sudden events where some systems are affected while others are intact.” LIT_007
Decentralized community systems in disaster: “can pivot swiftly to alternative sources or adjust consumption patterns based on local needs” — localized decision-making enables faster response than centralized coordination. LIT_007
Policy condition for decentralized resilience: in Germany, Netherlands, and Norway, decentralized renewable adoption required government intervention — community energy resilience depends on enabling policy, not technology alone. LIT_007
Community battery duration of 1–4 hours directly aligns with the NZ grid outage profile (SAIDI 4h46m average annual outage duration per customer; CAIDI 5h31m average duration per interruption; SAIFI 2.35 interruptions/year) — sizing to cover dominant NZ failure modes is a quantified resilience design target, not an arbitrary specification. OT_001
Neighbourhood batteries reduce local network exports by 15–20% (ANU finding) — reducing solar export spill decreases community reliance on upstream network capacity and improves local resilience to upstream network faults. OT_001
Single large community battery provides superior peak demand management over equivalent un-orchestrated household batteries — community-level coordination enables better resilience response during grid stress events. OT_001
Dynamic capabilities framing from cohousing literature (120-paper bibliometric, Table 4: “dynamic capabilities” = 6 occurrences, 29 link strength): successful cooperative communities function as adaptive systems capable of evolving in response to economic shocks, technological change, and environmental pressures — adaptability and continuous learning are central resilience mechanisms, not a single structural buffer. LIT_009
Cohousing cooperative model explicitly framed as a response to climate change, housing crises, and urban inequality — field growth from rare pre-2003 publications to 14 articles/year by 2019 reflects academic recognition that cooperative structures offer resilience advantages over individual household models under systemic external pressures. LIT_009
Green Road of Ecovillages: GEN network mobilised ecovillages across Europe to shelter Ukrainian refugees following the 2022 invasion — the ecovillage network as a distributed resilience infrastructure activated at continental scale in response to geopolitical crisis. LIT_012
Sarvodaya (Sri Lanka) and Auroville (India) ecovillage networks responded directly to the 2004 Indian Ocean Tsunami — demonstrating that self-sufficient community infrastructure is a redeployable disaster response asset, not merely a local amenity. LIT_012
GEN 2018 (30 demo ecovillages): 97% restore damaged ecosystems; 90% sequester carbon in soil/biomass — active ecological restoration at near-universal rates across the network as a structural resilience practice. (Primary source pending [RT_053].) LIT_012
Complete water SS (achieved by 69%, planned by 79%, of 60 European ecovillages) structurally eliminates water supply disruption risk — the most widely accomplished full-SS resilience outcome across WEF domains; only 24% of water-seeking ecovillages remain grid-connected for water. LIT_020
Multi-domain local provisioning (electricity 140%+, freshwater 100%+, nutrients 78%/98%) from a single neighbourhood system simultaneously eliminates dependencies across multiple external supply chains — the Gullberg seven-domain framework quantifies resilience across domains that previously had no common measurement framework. LIT_022

NZ intentional community structural resilience

Charitable trust ownership prevents community dissolution: when half of Tui’s founding group left within the first 5 years, the trust structure meant land could not be sold or divided; the community survived the departure shock intact — the strongest NZ-specific empirical demonstration that legal ownership structure is itself a resilience mechanism against membership volatility. LIT_015
All four long-established NZ ICs studied by Jones (2011) experienced cyclical vitality and decline across generations — resilience is not a steady state but a capacity to recover; no community showed linear decline or unbroken growth. LIT_015
One in three probationary members at Riverside Community perseveres to full membership — community renewal rate is a quantifiable resilience indicator for long-term IC viability; failure to attract and retain new members accelerates ageing and eventual dissolution. LIT_015

RA and climate resilience (NZ)

MfE (2016) projects 0.7–3°C warming by 2090 (RCP8.5); increased drought frequency in eastern/northern NZ; increased flood risk in western/southern NZ — community food systems must be designed for a materially different climate than the current baseline. LIT_013
29–40% of NZ land has high erosion risk (MfE 2018); 192 million tonnes/year soil lost at NZ$300 million/year — soil degradation is a structural resilience risk for NZ food production; RA soil practices (ground cover, minimising disturbance, soil carbon) directly address this. LIT_013
RA practices posited as drought/flood resilience mechanisms at farm and landscape scale — empirical NZ evidence remains a knowledge gap (Table 6, Grelet et al. 2021); an active research frontier, not an established finding. LIT_013

NZ natural-hazard exposure baseline (BRANZ BU701)

NZ flood/landslide exposure baseline + fast-rising cost (BRANZ BU701, July 2025). NIWA/University of Auckland (2022): 282,395 houses worth $213 billion** sit in areas of potential flood hazard (>441,000 buildings incl. sleepouts/sheds), and new housing is still being built there. Weather-related insurance claims (mostly flooding) averaged **$ 123 M/yr (2002–2018), jumped to $615 M/yr (2019-2022)**, and hit **$ 3.8 bn in 2023 (excl. NHC payouts; MfE/Stats NZ put total 2023 flood damage at $9–14 bn incl. uninsured). Landslides: ~10,000 NHC claims in the 3 years to late 2024 — ~10× the prior 3-year ~1,000, now more than any other natural hazard, with losses exceeding all other natural hazards combined. Quantifies the natural-hazard shock a resilient community-siting decision must anticipate — grounding Interview IV [INT_004] (satellite hazard monitoring) and LIT_013 (MfE increased-flood-risk projection) with the built-stock cost of getting siting wrong. OT_129
A worsening, climate-amplified shock — hazard-aware siting is a resilience investment. The 1-hour 1% AEP rainfall event is projected to rise 14% per 1°C of global warming (+1°C possibly 2040–2060, +2°C from 2060), atmospheric rivers are projected to get bigger, and ~25% of high-risk homes already carry flood-risk insurance premiums ≥ $250/yr extra (Treasury) with excesses of$ 2,500+ common. Under the Building Act the structural responses are avoidance/protection (protect building and land); mitigation-only leaves residual risk and proceeds under a s72 waiver — reinforcing the I06 case that hazard-aware siting and flood-resilient design are resilience investments, not optional extras. OT_129

WEF Global Risks 2026: systemic risk backdrop (OT_014)

Geoeconomic confrontation ranked #1 global risk (18% of 1,300+ experts, GRPS 2025–2026); “weaponization of supply chains” — sanctions, capital restrictions, trade barriers — identified as deliberate geoeconomic instruments, not just accidental disruptions; communities with local provisioning structurally bypass this class of external shock. OT_014
Critical infrastructure disruption ranked #22 short-term (up 4 positions) and #23 long-term; OECD infrastructure built post-WWII (50–70 years ago) is ageing and increasingly fragile; indirect damage from extreme weather events “is potentially even a much larger risk than the direct effects themselves.” OT_014
Panama Canal drought 2023–2024: falling water levels forced a one-third reduction in ships transiting, causing food shortages and price rises in UK markets — concrete demonstration that climate-driven freshwater scarcity translates directly to global food supply chain disruption without any geopolitical intent. OT_014
Firms in low- and middle-income countries lose at least $300 billion/year due to unreliable transport, electricity, and water infrastructure — quantifies the recurrent annual cost of centralised infrastructure dependency where investment in resilience is lowest. OT_014
50% of 1,300+ experts anticipate a turbulent or stormy global outlook over the next 2 years; 57% over the next 10 years; only 1% expect calm across either horizon — consensus expert assessment of a world in which external shocks are the norm, not the exception. OT_014

Kaitiakitanga as a resilience ethic (NZ)

When core priorities are kaitiakitanga and intergenerational equity rather than profit maximisation, communities seek a balanced climate response — neither purely restorative nor purely adaptive — focused on near-term wellbeing (jobs, training) while transitioning to alternative economic production; climate resilience is framed as a cultural value, not only a technical goal. OT_012

Remote-community diesel displacement (CR_012)

Quantifies off-grid diesel dependence as a shock vulnerability: pre-transition the Chatham Islands paid 129.5 c/kWh (~4× mainland) and spent ~NZD $1.8M/year on diesel; the renewable transition cuts diesel spend to ~$ 600k/year, moving diesel from near-total reliance to a backup role CR_012 (§1, §3, §10).
Hybrid renewable microgrids materially improve supply security for remote communities — Motairehe modelling shows solar + battery reducing annual supply shortfalls by 97% versus standalone systems CR_012 (§2).
Identifies hydro dry-year risk and solar/wind intermittency as the residual shock exposures, with hybrid (multi-source + storage) configurations recommended to ensure year-round supply security CR_012 (§5, §7).

Off-grid renewable diversification for energy security (Aotea-Great Barrier Island)

Renewable-portfolio diversification for energy security (NZ island case): at Medlands (MG 1) wind turbines do not significantly reduce system cost but are retained because they diversify the generation portfolio and improve energy security against solar-resource variability — empirical support for justifying a second renewable source on resilience grounds even when it is not the least-cost option. LIT_031
Fully off-grid (islanded) feasibility demonstrated: three isolated micro-communities on Aotea-Great Barrier Island can be served reliably and self-sufficiently by stand-alone PV(+wind)+battery microgrids without any grid connection, using 15 years of site meteorological data — a worked NZ example of complete electricity self-sufficiency under islanded operation. LIT_031

Full islanded energy autonomy across three carriers (Rakiura/Stewart Island)

Full islanded energy autonomy demonstrated for a remote NZ community: the Stewart Island MECM meets electricity, heat, and hydrogen-transport demand at 0% loss-of-power-supply-probability using a super-capacitor / battery / hydrogen storage stack spanning transient to seasonal timescales, removing dependence on diesel fuel deliveries. LIT_033
Displaces a fragile single-point diesel supply (4(+1) station, 1646 kW nameplate, ~0.52 NZD/kWh, 2.7 kg CO2 per litre burned) with 100% on-site renewables. LIT_033

Local PV-density threshold for daylight grid-independence (Afzalan & Jazizadeh 2021)

Daylight grid-independence requires high local PV density: only at ≥75% prosumer ratio can community surplus fully cover community deficit during peak generation (11 a.m.-2 p.m.); evening hours remain grid-dependent regardless of PV penetration without storage or load shifting. LIT_034

Earthsong resident view — resilience over autonomy (INT_005)

Self-sufficiency is “a necessary but insufficient condition” — “I grow my food, but then my spade breaks”: autonomy fails at the first unrepairable dependency, so durable resilience comes from collective relationships with people holding complementary skills and resources. A resident-level reframing that complements the technical resilience evidence on this page. Interview V [INT_005]
Social-security dimension of self-sufficiency: in a relatively low-socioeconomic area, visible self-sufficiency “just makes us a target”, whereas a community that provides value to its surroundings is less exposed — resilience as reciprocity with the wider area, not separation from it. Interview V [INT_005]

Earthsong COVID disruption & recovery (INT_006, NZ primary)

Closeness can invert into vulnerability under a health shock: during COVID, Earthsong’s tight community had to fragment into individual households (medically-vulnerable residents, healthcare workers, and legality meant a single “bubble” was neither practical nor lawful) — the common house shut, common meals stopped, meetings went online, and several older/vulnerable residents moved out because proximity now raised their risk. A concrete counter-case to the assumption that community density is unambiguously resilience-positive. Interview VI [INT_006]
Recovery dynamics: two lockdowns drove turnover “all at once,” overwhelming the community’s capacity to integrate new members without shared meals; it took ~2 years to re-stabilise, after which the community reported being more connected and motivated than before — resilience as a recovery capacity, not a steady state, consistent with LIT_015’s cyclical-vitality finding. Historic turnover ~1–2 households/year, arriving “in waves.” Interview VI [INT_006]

Grid-tied 100%-renewable model — grid as “ultimate guarantor” (Ohakune, Mohseni et al. 2021)

A notional Ohakune community micro-grid is designed for 100%-renewable generation while remaining grid-tied, with the upstream grid as the “ultimate guarantor” of load — distinct from the fully islanded Mohseni NZ cases (Great Barrier LIT_031, Stewart Island LIT_033). It is the closest NZ analogue to a grid-connected-but-highly-self-sufficient community — retaining the grid as a resilience backstop rather than pursuing full autonomy (the NI default design per CR_030). LIT_067

NZ policy framing — distributed renewables as natural-hazard resilience (MBIE Budget 2023 CERF bid)

A primary MBIE document centrally framed on resilience to natural hazards: remote/island communities off-grid or ‘at high risk of energy outages from natural hazards such as earthquakes, storms, and floods’, with the resilience benefit a co-equal rationale alongside cost reduction and explicitly escalating with climate change (‘higher risk and more frequent’). The $5m/yr innovation stream funds solar+battery ‘virtual power plants’ for ‘real peak shaving benefits’ and network resilience. Confirms distributed renewables + storage are treated as a funded resilience value for remote NZ communities. OT_120

Climate & insurance external shocks (BRANZ ER89)

NZ buildings are not climate resilient, and the gap is capability not knowledge (BRANZ ER89, 2024). In 17 stakeholder interviews (Climate Change Commission, councils, MBIE, Insurance Council NZ, LINZ, academics), stakeholders unanimously judged NZ buildings are not climate resilient and that current new-builds won’t be resilient in 50 years, while agreeing that ample evidence and international adaptations already exist — locating the resilience deficit in implementation, funding, political will and siloed governance (the Building Act often disconnected from the RMA). A systems/governance read of why known adaptations don’t get built, complementing the engineering-resilience evidence from Interview II [INT_002] / Interview III [INT_003] / Interview IV [INT_004]. OT_135
Insurance retreat / uninsurability as a systemic economic shock — and a worsening one. ER89 (Insurance Council NZ / NIWA voices) frames uninsurability as a live risk: banks require insurance to lend, so reduced insurance penetration deflates property/business values and shifts liability onto the Government’s balance sheet; the Government currently buys intolerable-risk properties but with no guarantee it continues, and managed-retreat/equity concerns compound (those with fewer means cannot afford to move or adapt). Coupled with Table 1’s intensifying hot days (+40–300%), extreme wind (+~10%) and drought (PED +~50 mm/yr), this grounds the I06 argument that hazard- and insurance-aware siting/adaptation is a resilience investment. Pairs directly with the flood/landslide exposure baseline and Building Act s71–74 siting gate in sibling BU701. OT_135

EDT connections

[Which EDT domains most directly advance this indicator, and how.]

Measurement

Existence and quality of disaster and risk management plans CR_001
Product, market, and investment diversification indices CR_001
Supply chain resilience assessments CR_001

Open questions

[Gaps in evidence, unresolved tensions, links to questions/ pages.]

Connections

Links to

Sources (31): CR_001 · CR_012 · CR_030 · LIT_001 · LIT_002 · LIT_003 · LIT_004 · LIT_007 · LIT_009 · LIT_012 · LIT_013 · LIT_015 · +19 more

Concepts (2): EDT–SSI Convergence · Self-Sufficiency Calculation Framework

Referenced by

Sources (3): LIT_003 · LIT_004 · LIT_007

Technologies (1): LoRa Mesh Network (Community Sensor & Comms In…

NEOBIOME

Explorer