Market Creation and Price SignalsUTILITY GREEN TARIFFS WITH REMOVAL SHARES
Lever last updated: 8 September 2026
Utility tariffs that channel a share of revenue into removal projects.
Cost
Low to Medium
Gross expenditure includes removal purchases and administration, even when premiums recover it. For example, 10,000–100,000 tonnes at Frontier’s current $270–500 enhanced-weathering prices would cost $2.7–50 million annually.
Complexity
Low to Medium
Existing billing and enrolment systems keep administration modest. The removal version adds eligibility rules, supplier due diligence, unit retirement, delivery reconciliation and consumer-claims controls, but no new institution.
Timeline
Short
Existing tariff and billing systems can be adapted quickly. For example, Xcel Energy proposed a tariff allowing customers to subscribe to dedicated wind and solar generation in November 2015, and Minneapolis contracted to purchase renewable electricity through it in June 2017, demonstrating material use within 19 months.
Integrity, Transparency & MRV
Innovation & Cost Reduction
Social & Environmental Safeguards
Energy, Transport & Storage Infrastructure
Inputs & Capacity
Demand Formation
Bankability and Cost of Capital
Policy Architecture & Coordination
Overview
A green tariff is a regulator-approved retail electricity product through which subscribing customers pay a premium that the utility uses to procure specified renewable electricity and its associated environmental attributes on their behalf. This lever would adapt that established model by adding certified durable removals to the procurement basket, as a fixed quantity per megawatt-hour or per subscription. The removal share is a proposed extension, not a product demonstrated by the existing green-tariff precedents, and would remain separate from the electricity attribute rather than making fossil-generated power renewable or carbon neutral. If adopted, the utility would aggregate demand from households and firms too small to sign individual removal offtakes.
Key Considerations
The product must specify whether subscribers buy a fixed quantity each month or an amount linked to energy use, which methods and durability tiers qualify, how units are verified and retired, and who bears replacement risk. Subscription periods must also match procurement commitments, since customer cancellations can leave utilities holding longer-term supply contracts. Regulated utilities should prevent costs shifting to non-participants, and claims must present the removal share as a separate climate contribution rather than proof that the supplied energy is emissions-free or carbon neutral.
Opportunities
This lever can turn many small willingness-to-pay decisions into procurement volumes large enough to support supplier contracts. Utilities bring billing relationships, customer reach, procurement capacity and credit quality, while a standing subscription creates a repeat buyer for removal suppliers. Fixed-price blocks can make participation accessible to households and smaller firms. Portfolios can also increase their durable-removal share over time, building familiarity with CDR without immediately exposing subscribers to the full cost of an exclusively high-durability portfolio.
Risks
Opt-in uptake and customer churn can leave procurement volumes small or unstable. Poor-quality units, double retirement, supplier non-delivery or vague marketing can damage the utility’s brand and create consumer-protection exposure. Premiums may exclude lower-income customers, while default enrolment risks undermining voluntariness. Subscribers may also treat the product as a substitute for reducing energy use or purchasing cleaner electricity unless its claims and design preserve a clear mitigation hierarchy.
Monitoring and Evaluation
Evaluation should compare enrolment, cancellations, premiums, tonnes contracted, delivered and retired, supplier non-delivery and customer complaints. Annual public reconciliation can show whether purchases match subscription promises, while consumer research can assess whether customers understand the removal share as separate from the electricity or gas supplied.
Stakeholder Engagement
Utility regulators or municipal boards, utilities and energy retailers, consumer advocates, certification bodies, registry operators and removal suppliers should shape the design. Early consultation can test affordability, acceptable claims and remedies for non-delivery, while supplier engagement can align subscription terms with credible procurement contracts.
Governance Levels
Utilities or energy retailers deliver the product by enrolling customers, collecting premiums, procuring units and retiring them. National regulators can authorise the product and standardise claims where retail tariffs are regulated nationally; in federal systems such as the US, approval instead sits with state utility commissions. Meanwhile, it would be feasible for customer-owned municipal utilities can adopt subscriptions through their own governing boards. The relevant governmental level is therefore the authority controlling or approving billing terms and customer claims, alongside the utility that performs the procurement.
Implementation Strategies
The removal share can be added as a separately identified line within an existing voluntary utility product, accompanied by plain-language statements about what the subscription does and does not support.
Eligibility, durability, verification, registry-retirement and replacement requirements should be established before procurement, with annual reconciliation of subscriber payments and retired tonnes.
Procurement duration can be matched to enrolment risk through a combination of shorter purchases and multi-year offtake, increasing the durable-removal share as participation and supply mature.
Ring-fenced cost recovery, affordable subscription blocks, independent claims review and simple enrolment and cancellation can protect subscribers and non-participating customers.
Case Studies

Eugene Water & Electric Board Carbon Offsets
The customer-owned municipal utility allows residential customers to add verified carbon offsets directly to their monthly utility bill. A $1.25 monthly charge purchases one tonne annually, while $6 purchases five tonnes. The programme demonstrates that a municipal utility can combine enrolment, billing, third-party verification and quantified carbon purchases in one retail product. It is not yet a durable-removal model: its current portfolio relies on forest offsets, including reduced timber harvesting, rather than certified long-duration carbon removal.

Xcel Energy Renewable Connect
Xcel proposed the programme to Minnesota regulators in November 2015, and customers were contracting through it by June 2017. Subscribers purchase electricity from dedicated wind and solar resources, while Xcel retires the associated renewable energy certificates on their behalf. The programme demonstrates the regulated machinery this lever would reuse: a utility aggregates demand, contracts supply, bills subscribers and retires attributes under an approved tariff. It purchases renewable electricity rather than removals, so a removal share would require separate eligibility, registry and claims rules.

EnergyAustralia Go Neutral
EnergyAustralia launched Go Neutral in 2016 as an opt-in product using carbon offsets against emissions from customers’ electricity or gas consumption. Litigation alleging misleading marketing began in 2023, the retailer withdrew the product in July 2024, and a May 2025 settlement statement acknowledged that offsets do not prevent or undo the harm caused by fossil energy use. The case shows why a removal subscription must distinguish financing removals from reducing supplied-energy emissions. It concerned conventional offsets rather than durable CDR and is therefore a claims-risk analogue, not a successful removal-share model.

PPC GreenPass and EU Guarantees of Origin
Greek electricity supplier PPC offers GreenPass, a €0.95 monthly add-on that matches household consumption with an equivalent quantity of renewable electricity using Guarantees of Origin. Article 19 of the EU Renewable Energy Directive requires Member States to maintain these certificates so suppliers can substantiate renewable-energy contracts to final customers. Together, the framework and product demonstrate the European machinery this lever could reuse: common attribute tracking combined with utility billing and retail aggregation. It concerns renewable electricity rather than CDR. A removal share would require separately certified and retired removal units, for which the EU Carbon Removals and Carbon Farming framework could provide the quality-assurance basis.
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2–3©2026 Alexander Mäkelä and Carbon Gap.
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Headline and barrier scores based on Carbon Gap analysis.