Introduction to Energy Planning and Policy
Expert-defined terms from the Certificate in Energy Planning and Policy course at London School of Planning and Management. Free to read, free to share, paired with a professional course.
Absorptive Capacity – concept #
The ability of institutions, firms, or regions to assimilate and apply new knowledge, technologies, or capital. Related terms: Learning curve, technology transfer, institutional readiness. Explanation: High absorptive capacity speeds the adoption of renewable technologies, while low capacity can stall policy implementation. Example: A city council with skilled staff and robust data systems can quickly integrate smart‑grid pilots. Challenges: Limited skilled workforce, inadequate data infrastructure, and resistance to change can reduce absorptive capacity.
Affordability – concept #
The economic feasibility of energy services for households, businesses, and governments. Related terms: Cost‑benefit analysis, tariff design, energy poverty. Explanation: Policies must balance investment costs with consumer ability to pay, ensuring that low‑income groups are not excluded. Example: A subsidized solar loan program reduces upfront costs for renters. Challenges: Fluctuating fuel prices, fiscal constraints, and targeting errors can undermine affordability goals.
Air Pollution – concept #
The release of harmful substances into the atmosphere from energy production and use. Related terms: Emissions standards, particulate matter, health externalities. Explanation: Reducing air pollution is a co‑benefit of shifting from fossil fuels to cleaner sources. Example: Replacing coal‑fired boilers with natural‑gas units cuts SO₂ emissions. Challenges: Monitoring compliance, addressing legacy pollution, and balancing economic growth with air‑quality targets.
Baseline Scenario – concept #
A reference projection of future energy demand and supply without additional policy interventions. Related terms: Business‑as‑usual, forecast, scenario analysis. Explanation: Serves as a benchmark to assess the impact of alternative policies. Example: A national energy model projects electricity demand to 2035 under current trends, forming the baseline. Challenges: Uncertainty in economic growth, technology costs, and behavioral changes can affect baseline accuracy.
Bioenergy – concept #
Energy derived from organic material such as wood, agricultural residues, or dedicated energy crops. Related terms: Biomass, biofuels, carbon neutrality. Explanation: Bioenergy can provide dispatchable power and reduce waste, but sustainability depends on feedstock sourcing. Example: A district heating system uses wood chips from local forestry operations. Challenges: Land‑use competition, emissions from combustion, and supply chain logistics.
Carbon Capture, Utilization, and Storage (CCUS) – concept #
Technologies that capture CO₂ emissions from point sources, reuse or store them underground. Related terms: Sequestration, carbon pricing, decarbonization. Explanation: CCUS can mitigate emissions from hard‑to‑abate sectors like cement. Example: A pilot plant captures CO₂ from a refinery and injects it into depleted oil reservoirs. Challenges: High capital costs, public acceptance of storage sites, and limited market incentives.
Carbon Pricing – concept #
Assigning a monetary cost to carbon emissions to internalize environmental externalities. Related terms: Carbon tax, emissions trading scheme, market‑based instruments. Explanation: Pricing carbon incentivizes low‑carbon investments and can generate revenue for green programs. Example: A carbon tax of $50 per tonne reduces coal consumption in the power sector. Challenges: Setting an appropriate price level, avoiding regressive impacts, and preventing carbon leakage.
Capacity Building – concept #
Developing skills, institutions, and resources needed for effective energy planning and policy execution. Related terms: Training, institutional development, technical assistance. Explanation: Strengthens stakeholder ability to design, implement, and monitor energy initiatives. Example: Workshops for municipal planners on integrating renewable targets into zoning codes. Challenges: Limited funding, high turnover of staff, and aligning training with real‑world needs.
Decarbonization – concept #
The process of reducing carbon dioxide emissions in the energy system. Related terms: Net‑zero, low‑carbon transition, climate mitigation. Explanation: Involves shifting to renewable electricity, electrifying transport, and improving efficiency. Example: A national target to cut electricity sector emissions by 80 % by 2030. Challenges: Ensuring grid reliability, managing stranded assets, and financing large‑scale infrastructure.
Distributed Generation – concept #
Small‑scale electricity production located close to the point of consumption. Related terms: Rooftop solar, micro‑grids, net metering. Explanation: Reduces transmission losses and can empower consumers to become prosumers. Example: Residential PV systems feeding excess power back to the grid under a net‑metering arrangement. Challenges: Grid integration, regulatory frameworks, and financing for small‑scale projects.
Demand‑Side Management (DSM) – concept #
Strategies to influence consumer energy use patterns to improve system efficiency. Related terms: Load shifting, energy efficiency, time‑of‑use tariffs. Explanation: Smooths peak demand, defers costly capacity expansions. Example: Industrial users adjust production schedules in response to lower electricity rates during off‑peak hours. Challenges: Consumer engagement, measurement and verification, and ensuring reliability.
Energy Access – concept #
The ability of households and communities to obtain reliable, affordable, and modern energy services. Related terms: Electrification, energy poverty, universal access. Explanation: A core development goal linked to health, education, and economic opportunity. Example: Off‑grid solar home systems provide lighting to remote villages. Challenges: Financing remote projects, maintaining infrastructure, and addressing gender disparities.
Energy Audit – concept #
Systematic assessment of energy consumption in a building or industrial process to identify savings opportunities. Related terms: Baseline assessment, retrofitting, benchmarking. Explanation: Provides data for targeted efficiency measures. Example: A commercial audit reveals that upgrading HVAC controls can cut electricity use by 15 %. Challenges: Data quality, upfront audit costs, and implementation gaps.
Energy Balance – concept #
A quantitative accounting of energy production, transformation, consumption, and losses within a defined system. Related terms: Input‑output analysis, energy flow diagram, sectoral breakdown. Explanation: Helps policymakers understand supply‑demand mismatches. Example: A national energy balance shows that 30 % of primary energy is lost in conversion to electricity. Challenges: Data collection inconsistencies, hidden informal sector use, and updating frequency.
Energy Efficiency – concept #
Delivering the same service using less energy. Related terms: Demand reduction, performance standards, retrofit. Explanation: The “first‑fuel” in climate mitigation because it reduces the need for new generation. Example: LED lighting replaces incandescent bulbs, delivering equal illumination with 80 % less power. Challenges: Split incentives, rebound effects, and upfront investment barriers.
Energy Mix – concept #
The composition of energy sources (fossil, renewable, nuclear) used to meet demand. Related terms: Fuel basket, generation portfolio, diversification. Explanation: Determines emissions intensity and system resilience. Example: A country’s electricity mix of 40 % coal, 30 % natural gas, 20 % wind, and 10 % hydro. Challenges: Integrating variable renewables, managing legacy plants, and policy coherence.
Energy Modeling – concept #
Using mathematical or simulation tools to forecast energy demand, supply, and policy impacts. Related terms: Scenario analysis, optimization, input‑output model. Explanation: Informs strategic planning and investment decisions. Example: A MARKAL model evaluates the cost implications of different decarbonization pathways. Challenges: Data uncertainty, model complexity, and aligning results with stakeholder expectations.
Energy Policy – concept #
The set of laws, regulations, incentives, and institutions that shape the production, distribution, and consumption of energy. Related terms: Regulatory framework, policy instruments, governance. Explanation: Guides market behavior and directs public resources toward desired outcomes. Example: A Renewable Portfolio Standard mandates that 30 % of electricity come from renewables by 2030. Challenges: Policy coherence across sectors, political opposition, and implementation capacity.
Energy Security – concept #
The uninterrupted availability of energy at affordable prices. Related terms: Supply diversification, strategic reserves, geopolitical risk. Explanation: Essential for economic stability and national sovereignty. Example: Maintaining strategic petroleum reserves to cushion short‑term supply shocks. Challenges: Over‑reliance on imports, infrastructure vulnerability, and market volatility.
Energy Subsidy – concept #
Financial support that lowers the cost of energy for producers or consumers. Related terms: Price support, fiscal incentive, market distortion. Explanation: Can promote specific technologies but may create inefficiencies. Example: A feed‑in tariff guarantees a fixed price for solar electricity, encouraging installations. Challenges: Fiscal burden, phase‑out design, and unintended market effects.
Energy Transition – concept #
The long‑term shift from fossil‑dominant systems to low‑carbon, renewable‑based energy structures. Related terms: Just transition, pathway, systemic change. Explanation: Involves technology, policy, finance, and social dimensions. Example: A region phases out coal mines while retraining workers for wind‑farm construction. Challenges: Managing job losses, ensuring grid stability, and financing large‑scale upgrades.
Energy‑to‑Water Nexus – concept #
Interdependencies between energy production and water supply, use, and treatment. Related terms: Water footprint, cooling water, hydropower. Explanation: Energy generation often requires large water volumes, while water treatment consumes electricity. Example: A thermal power plant draws river water for cooling, affecting downstream ecosystems. Challenges: Climate‑induced water scarcity, competing demands, and integrated planning.
Feed‑in Tariff (FIT) – concept #
A policy mechanism that guarantees a fixed price for renewable electricity over a set period. Related terms: Contract‑for‑difference, incentive, price guarantee. Explanation: Reduces investment risk, accelerating renewable deployment. Example: A 10‑year FIT of $0.12/KWh for on‑shore wind projects. Challenges: Setting tariffs at cost‑reflective levels, avoiding over‑compensation, and managing budgetary impacts.
Financial Viability – concept #
The ability of an energy project to generate sufficient returns to cover costs and provide profit. Related terms: Levelized cost of electricity (LCOE), cash flow analysis, risk assessment. Explanation: Determines investor interest and financing terms. Example: A solar farm with an LCOE below the prevailing wholesale price is financially viable. Challenges: Price volatility, policy uncertainty, and financing gaps.
Grid Integration – concept #
The process of incorporating new generation resources, storage, and demand‑side measures into the existing power network. Related terms: Interconnection standards, ancillary services, curtailment. Explanation: Ensures reliability while accommodating variable renewables. Example: A wind farm connects to the grid with a power‑electronics interface that provides voltage support. Challenges: Transmission congestion, forecasting errors, and regulatory harmonization.
Heat Rate – concept #
The amount of fuel energy required to produce one unit of electricity, expressed as kWh per BTU or similar. Related terms: Efficiency, thermal performance, plant rating. Explanation: Lower heat rates indicate higher plant efficiency. Example: A gas turbine with a heat rate of 7,000 BTU/kWh is more efficient than one at 9,000 BTU/kWh. Challenges: Aging equipment, fuel quality variations, and measurement accuracy.
Hydrogen Economy – concept #
A system where hydrogen serves as a major energy carrier for transport, industry, and power. Related terms: Green hydrogen, electrolysis, fuel cells. Explanation: Offers a pathway to decarbonize sectors that are hard to electrify. Example: Electrolyzers powered by surplus wind generate hydrogen for steel production. Challenges: High production costs, storage infrastructure, and safe handling standards.
Infrastructure Resilience – concept #
The capacity of energy systems to withstand and recover from disruptions such as natural disasters, cyber‑attacks, or market shocks. Related terms: Hardening, redundancy, adaptive capacity. Explanation: Resilient infrastructure reduces outage duration and economic loss. Example: Undergrounding power lines in hurricane‑prone regions improves resilience. Challenges: High retrofitting costs, regulatory approval, and climate uncertainty.
Investment Climate – concept #
The overall environment that influences the flow of capital into energy projects, including regulatory stability, risk perception, and financial incentives. Related terms: Risk premium, policy certainty, market liberalization. Explanation: A favorable climate attracts domestic and foreign investors. Example: A transparent permitting process and guaranteed purchase agreements improve the investment climate for offshore wind. Challenges: Policy volatility, currency risk, and limited access to long‑term financing.
Least‑Cost Planning (LCP) – concept #
A systematic approach to identify the combination of resources that meets demand at the lowest total system cost over a planning horizon. Related terms: Cost optimization, resource mix, scenario analysis. Explanation: Balances capital, operating, and externality costs. Example: An LCP study recommends a mix of solar, battery storage, and demand response to meet projected load. Challenges: Incorporating future technology cost declines, valuing environmental benefits, and dealing with uncertainty.
Levelized Cost of Electricity (LCOE) – concept #
The average cost per megawatt‑hour of electricity generated over a plant’s lifetime, accounting for capital, fuel, operation, and financing. Related terms: Cost metric, discount rate, comparative analysis. Explanation: Facilitates technology comparison on an equal basis. Example: A utility‑scale solar project has an LCOE of $0.045/KWh, lower than the regional coal LCOE of $0.07/KWh. Challenges: Sensitivity to assumptions, ignoring grid integration costs, and dynamic market conditions.
Load Forecasting – concept #
Predicting future electricity demand on short‑, medium‑, or long‑term horizons. Related terms: Demand modeling, time series analysis, peak load. Explanation: Essential for capacity planning and reliability management. Example: A utility uses weather‑adjusted regression models to forecast daily peak demand. Challenges: Weather variability, behavioral shifts, and data granularity.
Market Liberalization – concept #
The process of opening energy markets to competition by separating generation, transmission, and distribution functions. Related terms: Unbundling, deregulation, competitive bidding. Explanation: Aims to improve efficiency, lower prices, and encourage innovation. Example: A country reforms its electricity sector, allowing independent power producers to sell directly to the grid. Challenges: Ensuring fair access, preventing market manipulation, and maintaining system reliability.
Net Metering – concept #
A billing arrangement that credits small‑scale generators for excess electricity exported to the grid, offsetting consumption charges. Related terms: Feed‑in tariff, prosumer, surplus export. Explanation: Incentivizes rooftop solar and other distributed resources. Example: A homeowner with a 5 kW PV system receives a credit for each kilowatt‑hour fed back to the grid. Challenges: Tariff design, cost allocation for grid maintenance, and potential over‑compensation.
Net‑Zero Emissions – concept #
Achieving a balance between greenhouse gas emissions produced and removed from the atmosphere. Related terms: Carbon neutrality, offsetting, deep decarbonization. Explanation: Often set as a national or corporate target for a specific year. Example: A city pledges to reach net‑zero by 2050 through renewable procurement, building retrofits, and tree planting. Challenges: Accounting for indirect emissions, securing reliable offsets, and financing long‑term measures.
Off‑grid Electrification – concept #
Delivering electricity to areas not connected to a central grid, typically using localized generation or storage. Related terms: Mini‑grid, stand‑alone system, rural power. Explanation: Expands access where grid extension is economically impractical. Example: Solar home systems provide lighting and phone charging in remote villages. Challenges: Maintenance logistics, financing small projects, and ensuring system durability.
Power Purchase Agreement (PPA) – concept #
A long‑term contract between an electricity generator and a buyer (often a utility or corporation) specifying price, volume, and delivery terms. Related terms: Offtake contract, contract‑for‑difference, price floor. Explanation: Provides revenue certainty for project developers. Example: A corporate PPA locks in a fixed price for 100 MW of wind power over 15 years. Challenges: Credit risk, regulatory changes, and renegotiation clauses.
Renewable Energy Certificate (REC) – concept #
A tradable instrument that represents the environmental attributes of one megawatt‑hour of renewable electricity generation. Related terms: Green certificate, tracking system, compliance market. Explanation: Enables entities to claim renewable use without physically delivering the electricity. Example: A utility purchases RECs to meet its statutory renewable portfolio requirement. Challenges: Double counting, market liquidity, and verification integrity.
Resilience Planning – concept #
Integrating strategies to anticipate, absorb, and recover from shocks and stresses into energy system design. Related terms: Climate adaptation, risk assessment, continuity of service. Explanation: Enhances the ability of the energy sector to maintain operations during extreme events. Example: A utility develops a storm‑response protocol that includes pre‑emptive line de‑energization and rapid crew deployment. Challenges: Limited data on future hazards, funding for hardening, and coordination across agencies.
Sector Coupling – concept #
Linking electricity with other energy sectors (heat, transport, industry) to improve overall system efficiency and flexibility. Related terms: Integrated energy system, power‑to‑heat, electrification. Explanation: Enables cross‑sectoral optimization, such as using excess renewable electricity for heating. Example: A district heating network powered by electric heat pumps driven by surplus solar generation. Challenges: Regulatory silos, market barriers, and technical integration complexities.
Smart Grid – concept #
An electricity network that uses digital communication, sensors, and automation to monitor and manage flows of electricity in real time. Related terms: Advanced metering infrastructure, demand response, grid modernization. Explanation: Improves reliability, enables integration of variable renewables, and supports consumer participation. Example: Smart meters send real‑time usage data, allowing dynamic pricing and load shifting. Challenges: Cybersecurity, data privacy, and high deployment costs.
Social Acceptance – concept #
Public perception and support for energy projects and policies. Related terms: Stakeholder engagement, NIMBY, community benefit. Explanation: Determines the feasibility of new infrastructure and influences policy success. Example: A wind farm gains local approval after offering community investment shares and job training. Challenges: Misinformation, perceived visual impacts, and equitable benefit distribution.
Solar Photovoltaic (PV) – concept #
Technology that converts sunlight directly into electricity using semiconductor materials. Related terms: Grid‑connected PV, utility‑scale solar, module efficiency. Explanation: One of the fastest‑growing renewable sources due to falling costs. Example: A 10 MW solar farm supplies power to the regional grid under a PPA. Challenges: Intermittency, land use, and recycling of end‑of‑life modules.
Strategic Petroleum Reserve (SPR) – concept #
A government‑controlled stockpile of crude oil intended to mitigate supply disruptions. Related terms: Emergency release, energy security, stockpile management. Explanation: Provides a buffer against geopolitical shocks. Example: The SPR is drawn down after a major supply interruption in a key oil‑exporting region. Challenges: Maintaining adequate volume, storage degradation, and political decision‑making.
Supply‑Side Management (SSM) – concept #
Actions aimed at influencing the production side of the energy market, such as encouraging new generation or retiring old plants. Related terms: Capacity incentives, generation subsidies, decommissioning. Explanation: Complements demand‑side measures to balance the system. Example: A capacity auction rewards developers of flexible gas turbines to ensure reliability. Challenges: Forecasting future demand, avoiding over‑capacity, and aligning with environmental goals.
Sustainable Development Goal (SDG) 7 – concept #
The United Nations target to “ensure access to affordable, reliable, sustainable and modern energy for all.” Related terms: Universal electrification, energy poverty, global agenda. Explanation: Guides national energy policies and international financing. Example: A development bank funds off‑grid solar projects to meet SDG‑7 indicators. Challenges: Coordinating multiple stakeholders, tracking progress, and integrating climate targets.
Technology Readiness Level (TRL) – concept #
A scale from 1 to 9 that assesses the maturity of a technology, from basic research (TRL 1) to proven commercial deployment (TRL 9). Related terms: Innovation pipeline, demonstration, commercialization. Explanation: Helps investors and policymakers gauge risk. Example: A new solid‑state battery is at TRL 5, indicating successful laboratory validation. Challenges: Bridging the “valley of death” between prototype and market, and securing scale‑up funding.
Transmission Congestion – concept #
A condition where the capacity of transmission lines is insufficient to accommodate scheduled power flows, leading to curtailment or higher costs. Related terms: Bottleneck, congestion pricing, loop flow. Explanation: Limits the efficient dispatch of generation, especially renewables located far from load centers. Example: Wind farms in the north are curtailed because the existing high‑voltage corridor is fully utilized. Challenges: Costly upgrades, regulatory coordination, and accurate congestion forecasting.
Utility‑Scale Renewable – concept #
Large‑capacity renewable energy projects (typically ≥10 MW) that feed directly into the transmission grid. Related terms: Utility‑grade, bulk power, large‑scale solar or wind. Explanation: Provides substantial generation capacity and can influence market dynamics. Example: A 200 MW offshore wind farm connected via submarine cable to the mainland grid. Challenges: Permitting, environmental impact assessments, and integration of variable output.
Variable Renewable Energy (VRE) – concept #
Renewable generation sources whose output fluctuates with weather conditions, such as wind and solar PV. Related terms: Intermittency, capacity factor, forecasting. Explanation: Requires flexible resources and advanced planning to maintain system balance. Example: A solar farm’s output varies hourly with cloud cover, necessitating storage or demand response. Challenges: Accurate forecasting, grid stability, and market design that values flexibility.
Water‑Energy Nexus – concept #
The interrelationship between water and energy systems, where water is needed for energy production and energy is required for water extraction, treatment, and distribution. Related terms: Cooling water demand, hydropower, desalination. Explanation: Policy decisions in one sector affect the other. Example: Increasing electricity generation with thermal plants raises cooling water demand, stressing local rivers. Challenges: Climate‑induced water scarcity, competing allocation priorities, and integrated governance.
Zero‑Emission Vehicle (ZEV) – concept #
A vehicle that emits no tailpipe pollutants, typically powered by electricity or hydrogen fuel cells. Related terms: Electric vehicle (EV), fuel‑cell vehicle, emissions standards. Explanation: Supports transport sector decarbonization. Example: A city fleet of electric buses reduces local air pollution and operating costs. Challenges: Charging infrastructure, battery range, and upfront vehicle cost.