1. Introduction

Energy planning traditionally focuses on electricity demand, generation capacity, transmission infrastructure, energy security, affordability, and decarbonisation. However, modern energy projects can substantially affect biodiversity, including forests, wildlife habitats, wetlands, marine ecosystems, migratory routes, endangered species, and ecological processes.

The concept of integration of biodiversity concerns in energy planning means incorporating ecological considerations into energy policy, resource planning, project selection, site selection, environmental assessment, licensing, construction, operation, and eventual decommissioning. The objective is not simply to compensate for environmental damage after a project has been selected, but to ensure that biodiversity is considered at the earliest planning stage.

This is particularly important because the energy transition itself can create ecological pressures. Renewable-energy projects generally reduce greenhouse-gas emissions but can still cause habitat fragmentation, bird and bat mortality, forest loss, river alteration, and marine ecosystem disturbance.

2. Meaning and Scope

Biodiversity integration in energy planning involves evaluating the relationship between:

electricity-generation technologies and ecosystems;

transmission infrastructure and wildlife corridors;

hydropower and riverine biodiversity;

wind farms and birds/bats;

solar projects and land-use change;

offshore wind and marine ecosystems;

bioenergy and agricultural/forest biodiversity;

mining and biodiversity impacts associated with energy-transition minerals.

The approach therefore moves from a narrow question—“Can this project generate electricity?”—to a broader planning question:

“Can the required energy service be provided while avoiding, minimising, restoring and, where appropriate, compensating for significant biodiversity harm?”

This reflects the mitigation hierarchy:

Avoid biodiversity impacts wherever possible;

Minimise unavoidable impacts;

Restore/rehabilitate affected ecosystems;

Offset or compensate residual impacts where legally and ecologically appropriate.

3. Why Biodiversity Must Be Integrated into Energy Planning

A. Land-use impacts

Large solar parks, transmission corridors, substations, wind farms and access roads can alter habitats. Even where individual facilities have relatively limited footprints, cumulative development can produce significant landscape-level impacts.

B. Forest impacts

Transmission lines and renewable-energy projects may require diversion or fragmentation of forest land. Forest clearance can affect:

wildlife movement;

breeding habitats;

ecosystem services;

carbon storage;

watershed functions.

C. Wildlife impacts

Power infrastructure can create direct risks to wildlife. Transmission lines, for example, can cause bird collisions and electrocution. Wind turbines may affect birds and bats.

D. Hydropower impacts

Hydropower planning raises particularly complex biodiversity questions because dams may:

alter natural river flows;

obstruct fish migration;

change sediment transport;

affect downstream ecosystems;

submerge terrestrial habitats.

E. Marine biodiversity

Offshore wind and submarine transmission infrastructure may affect marine mammals, seabirds, fisheries and benthic ecosystems. Consequently, marine spatial planning becomes increasingly relevant.

F. Cumulative impacts

One of the most important developments in modern environmental governance is recognition that individual projects should not always be assessed in isolation.

For example, ten individually acceptable transmission or generation projects may collectively fragment a wildlife corridor. Integrated energy planning can identify such cumulative effects before infrastructure is locked into place.

4. Legal Principles Supporting Biodiversity Integration

A. Sustainable development

The principle of sustainable development requires economic development to be reconciled with environmental protection.

Energy planning therefore cannot treat environmental protection as an external consideration. Environmental sustainability becomes part of the legality and legitimacy of development decisions.

B. Precautionary principle

Where scientific information is uncertain but there is a credible risk of serious environmental harm, decision-makers may need to adopt precautionary measures.

This is particularly important for biodiversity because ecological damage may be:

irreversible;

difficult to quantify;

cumulative;

scientifically uncertain.

C. Public trust doctrine

Under the public trust doctrine, important natural resources are treated as resources that governments hold for the benefit of the public.

This principle can become relevant when energy infrastructure affects forests, rivers, wetlands, coastal areas or other ecologically important resources.

D. Intergenerational equity

Energy planning involves infrastructure with lifetimes of decades. Decisions made today can therefore affect ecosystems available to future generations.

Intergenerational equity requires decision-makers to consider long-term ecological consequences rather than only immediate energy benefits.

5. Biodiversity and Environmental Impact Assessment

Environmental Impact Assessment (EIA) is one of the principal mechanisms through which biodiversity enters energy decision-making.

A robust biodiversity-oriented EIA should examine:

Baseline conditions

Before project approval, authorities should establish information about:

species;

habitats;

protected areas;

ecological corridors;

wetlands;

breeding grounds;

migratory routes.

Alternatives analysis

The assessment should examine alternative:

locations;

technologies;

transmission routes;

project sizes;

construction methods.

This is critical because avoiding biodiversity damage through better siting is generally preferable to attempting to restore a damaged ecosystem later.

Impact prediction

The assessment should identify direct, indirect and cumulative impacts.

Mitigation plan

The developer should specify measures for avoiding or reducing ecological damage.

Monitoring

Post-approval monitoring determines whether predicted impacts actually occur and whether mitigation measures work.

6. Biodiversity-Sensitive Energy Planning in India

India provides an important example because energy expansion occurs alongside significant biodiversity conservation obligations.

Relevant legal frameworks include:

Environment (Protection) Act, 1986;

Forest (Conservation) Act, 1980, as amended and renamed under subsequent legislation;

Wild Life (Protection) Act, 1972;

Biological Diversity Act, 2002, as amended;

EIA regulations;

constitutional environmental principles under Articles 21, 48A and 51A(g).

Energy planners therefore need to account for protected areas, forests, wildlife corridors, endangered species and ecological sensitivity while planning generation and transmission infrastructure.

7. Important Indian Case Laws

7.1 Hanuman Laxman Aroskar v. Union of India

The Supreme Court's decision in Hanuman Laxman Aroskar v. Union of India is significant for understanding environmental decision-making and EIA.

The case concerned environmental clearance for the expansion of the Mopa airport project in Goa. The Court emphasised the importance of a meaningful environmental assessment and decision-making process.

Relevance to energy planning

Although the case was not an energy case, its principles are highly relevant to energy infrastructure because environmental clearance cannot be treated as a purely administrative formality.

For energy projects, this supports:

genuine environmental assessment;

consideration of relevant ecological information;

transparency;

reasoned decision-making;

meaningful consideration of environmental consequences.

7.2 Alembic Pharmaceuticals Ltd. v. Rohit Prajapati

In Alembic Pharmaceuticals Ltd. v. Rohit Prajapati, the Supreme Court emphasised the importance of prior environmental clearance and rejected the idea that environmental violations can simply be regularised after the activity has already occurred.

Significance

The principle has considerable implications for energy infrastructure.

A developer should not assume that environmental impacts can be addressed after construction begins. Biodiversity considerations must be integrated before irreversible development decisions are implemented.

7.3 Vellore Citizens' Welfare Forum v. Union of India

This landmark case established that the:

precautionary principle;

polluter-pays principle; and

sustainable-development principle

form part of Indian environmental law.

Relevance

Energy planners must therefore balance development requirements with ecological protection.

The case is especially relevant to biodiversity because scientific uncertainty cannot automatically justify proceeding without adequate environmental safeguards.

8. The Great Indian Bustard Case

One of the most important Indian cases directly connecting energy infrastructure with biodiversity is the litigation concerning the Great Indian Bustard (GIB).

The Supreme Court has dealt with the conflict between conservation of the critically endangered bird and electricity-transmission infrastructure in areas forming part of its habitat.

The case illustrates a fundamental planning dilemma:

Renewable-energy development and transmission expansion can advance climate objectives while simultaneously creating biodiversity risks.

The Court's consideration of undergrounding and other protective measures demonstrates the importance of designing electricity infrastructure with species-specific ecological risks in mind.

Broader lesson

Energy planning should identify sensitive biodiversity areas before transmission corridors and generation sites are finalised.

This is more effective than attempting to redesign infrastructure after construction has begun.

9. International Case Law

A. Sweetman v. An Bord Pleanála — European Union

The Court of Justice of the European Union in Sweetman v. An Bord Pleanála dealt with the protection of a European protected site under the EU Habitats Directive.

The Court adopted a strict approach to determining whether a project could adversely affect the integrity of a protected site.

Relevance to energy planning

Energy infrastructure located in protected habitats may require exceptionally careful assessment. Authorities must consider ecological integrity rather than simply determining whether the project has an economically beneficial purpose.

B. People Over Wind and Peter Sweetman v. Coillte Teoranta

This CJEU decision concerned the relationship between mitigation measures and appropriate assessment under the Habitats Directive.

The Court clarified that mitigation measures cannot simply be used to avoid the requirement for an appropriate assessment where a project could affect a protected site.

Energy relevance

For energy projects affecting protected biodiversity areas, authorities should first establish whether an ecological assessment is required rather than assuming that proposed mitigation automatically eliminates the need for scrutiny.

C. Holohan v. An Bord Pleanála

The CJEU emphasised the importance of appropriate ecological information in assessing effects on protected sites.

The case illustrates that environmental decision-making must be based on sufficiently detailed scientific information.

Energy-planning lesson

Large renewable-energy projects, transmission networks and hydropower projects should be supported by reliable ecological baseline data.

10. Biodiversity-Sensitive Planning for Different Energy Technologies

A. Solar Energy

Solar projects should consider:

agricultural land;

wetlands;

grasslands;

wildlife corridors;

protected habitats.

Planning can reduce biodiversity impacts through:

disturbed-land siting;

brownfield development;

agrivoltaics where appropriate;

ecological corridors;

vegetation management;

avoiding sensitive habitats.

B. Wind Energy

Wind planning should examine:

bird migration routes;

raptor habitats;

bat populations;

nesting areas;

cumulative turbine impacts.

Possible mitigation measures include:

careful turbine placement;

seasonal curtailment;

turbine shutdown during high-risk periods;

monitoring;

habitat management.

C. Hydropower

Hydropower planning should assess:

environmental flows;

fish migration;

sediment transport;

downstream ecosystems;

cumulative basin impacts.

The appropriate planning unit should often be the river basin, rather than an individual dam.

D. Transmission Networks

Transmission planning should consider:

wildlife corridors;

protected areas;

bird collision risks;

forest fragmentation;

landscape connectivity.

Route optimisation can sometimes avoid major biodiversity impacts without substantially compromising grid objectives.

E. Offshore Wind

Offshore wind requires marine biodiversity assessment involving:

marine mammals;

seabirds;

fisheries;

benthic habitats;

underwater noise;

cumulative marine infrastructure.

Marine spatial planning can help coordinate energy development with conservation and other ocean uses.

11. Strategic Environmental Assessment

Project-level EIA is sometimes insufficient because energy infrastructure is developed through national and regional plans.

Strategic Environmental Assessment (SEA) addresses environmental consequences at the level of:

policies;

plans;

programmes.

For energy planning, SEA can assess alternatives before individual projects are selected.

For example, a national renewable-energy plan could identify:

biodiversity exclusion zones;

low-conflict development areas;

priority renewable-energy zones;

transmission corridors;

cumulative ecological constraints.

This allows biodiversity considerations to influence where development occurs, rather than merely determining how an already-selected project should be mitigated.

12. The Mitigation Hierarchy

The mitigation hierarchy should be central to biodiversity-sensitive energy planning.

Stage 1 — Avoidance

The preferred approach is to avoid sensitive biodiversity areas entirely.

Stage 2 — Minimisation

Where avoidance is impossible, reduce impacts through design and operational measures.

Stage 3 — Restoration

After construction, restore affected habitats as far as reasonably possible.

Stage 4 — Compensation/Offset

Residual impacts may sometimes be addressed through biodiversity offsets or compensatory conservation measures, subject to applicable law and ecological feasibility.

However, biodiversity offsets should not become a justification for destroying irreplaceable ecosystems.

13. Biodiversity Net Gain and Energy Infrastructure

Some jurisdictions have moved toward biodiversity net gain frameworks.

The basic idea is that development should leave biodiversity in a condition that is at least no worse—and potentially better—than before development.

For energy planning, this can involve:

habitat restoration;

ecological corridors;

native vegetation;

wetland restoration;

species conservation;

long-term ecological monitoring.

The effectiveness of such approaches depends heavily on baseline quality, monitoring, permanence and the ecological equivalence of proposed compensation.

14. Economic and Regulatory Integration

Biodiversity should not be treated only as an environmental-clearance issue.

Energy regulators and planners can integrate biodiversity into:

Procurement

Renewable-energy auctions can incorporate environmental siting criteria.

Transmission planning

Grid planners can use biodiversity mapping when identifying corridors.

Tariff regulation

Regulatory frameworks can recognise reasonable environmental-compliance expenditures where legally appropriate.

Licensing

Generation and transmission licences can include environmental obligations.

Performance regulation

Utilities can be required to monitor ecological impacts and report compliance.

15. Data, GIS and Digital Planning

Modern energy planning increasingly uses:

Geographic Information Systems (GIS);

satellite imagery;

biodiversity databases;

species distribution models;

environmental sensitivity maps;

remote sensing;

AI-supported spatial analysis.

These tools can produce biodiversity constraint maps showing areas where energy development should be:

prohibited;

restricted;

subject to enhanced assessment;

generally suitable.

However, technological mapping cannot replace field surveys or legal environmental assessment.

16. Cumulative Impact Assessment

A major weakness of conventional project-by-project regulation is that it can overlook cumulative ecological impacts.

For example:

Solar project + transmission corridor + road + mining project + industrial development

may collectively cause greater ecological damage than any individual project indicates.

Energy planning should therefore assess:

cumulative habitat loss;

fragmentation;

species population effects;

water impacts;

multiple transmission corridors;

regional development pressures.

17. Climate-Biodiversity Nexus

Energy planning increasingly operates at the intersection of two environmental objectives:

Climate mitigation and biodiversity conservation.

These objectives can reinforce each other, but they are not always identical.

For example:

renewable electricity can reduce greenhouse-gas emissions;

but poorly sited renewable projects can damage habitats.

Consequently, the legal objective should not be understood as:

“Renewable energy automatically equals environmental sustainability.”

Instead, sustainable energy planning requires consideration of both carbon impacts and ecological impacts.

18. Institutional Coordination

Effective biodiversity integration requires coordination among:

energy ministries;

electricity regulators;

environmental authorities;

forest authorities;

wildlife authorities;

transmission system operators;

local governments;

biodiversity boards;

affected communities.

Fragmented decision-making can result in an energy project receiving planning approval while ecological impacts are considered only later.

An integrated governance model allows biodiversity constraints to influence energy planning from the beginning.

19. Community Participation

Local communities can provide important information concerning:

wildlife movement;

traditional ecological knowledge;

water resources;

land-use patterns;

seasonal ecological changes.

Participation also improves procedural legitimacy.

Energy planning should therefore provide meaningful opportunities for affected communities to participate in environmental decision-making, subject to the applicable legal framework.

20. Key Legal Challenges

Several challenges remain.

1. Balancing renewable energy and biodiversity

Decarbonisation can require rapid infrastructure deployment, while biodiversity protection may require careful siting and longer assessment periods.

2. Scientific uncertainty

Species populations and ecosystem responses are often difficult to predict.

3. Cumulative effects

Existing legal systems may focus heavily on individual projects.

4. Institutional fragmentation

Energy and environmental agencies may operate under different statutory mandates.

5. Long-term monitoring

Environmental approval is meaningful only if mitigation commitments are monitored throughout the project's life.

21. A Model Legal Framework

A biodiversity-integrated energy planning system can be structured as follows:

National Energy Policy
↓
Biodiversity and Climate Objectives
↓
Strategic Environmental Assessment
↓
Biodiversity Sensitivity Mapping
↓
Alternative Energy Scenarios
↓
Site and Technology Selection
↓
Project-Level EIA
↓
Mitigation Hierarchy
↓
Environmental Clearance/Licensing
↓
Construction Controls
↓
Operational Monitoring
↓
Adaptive Management
↓
Restoration/Decommissioning

This model moves biodiversity protection upstream, into energy-policy and infrastructure-planning decisions.

22. Conclusion

Integration of biodiversity concerns into energy planning represents a shift from reactive environmental regulation to proactive ecological planning.

The central principle is that biodiversity should not be considered only after an energy project has already been designed. It should influence the selection of energy technologies, locations, transmission corridors, infrastructure designs and operational practices from the outset.

Indian environmental jurisprudence—particularly the principles developed through cases such as Vellore Citizens' Welfare Forum, Hanuman Laxman Aroskar, Alembic Pharmaceuticals and litigation concerning the Great Indian Bustard—demonstrates the importance of precaution, sustainable development, scientific environmental assessment and protection of ecologically sensitive resources.

International jurisprudence under the EU Habitats Directive similarly demonstrates the importance of ecological integrity and scientifically adequate assessment.

Ultimately, biodiversity-sensitive energy planning seeks to reconcile three objectives:

Energy security + climate transition + ecological integrity.

The most effective legal framework is therefore one that uses strategic environmental assessment, spatial planning, cumulative-impact assessment, the mitigation hierarchy, biodiversity mapping, public participation, monitoring and adaptive regulation before and throughout the life cycle of energy infrastructure.