Modern electric vehicles, such as Tesla’s Cybertruck, that glide down today’s streets indicate a better future with less tailpipe emissions. Transitioning from internal combustion engines to battery-powered electric vehicles (EVs), and from gas stations to EV charging stations, is a significant improvement in combating global warming. However, when an electric vehicle plugs into a charging station, it draws from a regional power grid supplied by a real-time blend of energy sources, heavily leveraging fossil fuels such as coal, natural gas, and oil.

During peak charging hours, a demand spike typically forces utilities to activate high-emission fossil fuel backup plants. When public reports claim that renewable energy is surpassing fossil fuels, it is vital to remember that Renewable Energy Certificates (RECs) are the primary market-based accounting method by which corporations assert that they are purchasing renewable energy.

As legislators and regulators try to address fossil fuels that continue to fluctuate in price and cause increased environmental issues, progressive governing regions, particularly EU member states, are implementing aggressive grid overhauls to lead the global energy transition, but global corporate accounting frameworks still contain significant loopholes. The Vegan Digest highlights that these loopholes hinder a transparent accounting of global emissions.

Once energy is added to a shared electric grid, its physical source becomes indistinguishable. The energy is identical whether it is derived from renewable sources like solar and wind power, or from fossil fuels. A popular talking point used to delay the transition away from fossil fuels is that solar and wind power are intermittent, meaning the sun is not always shining and air currents are not always strong. Notably, however, they complement each other, with wind activity tending to pick up at nighttime when solar output drops. This pattern is amplified by the consistent, round-the-clock winds powering offshore wind farms.

Furthermore, other sources of clean energy bypass intermittency altogether. Natural hydro-based energy captures the energy from rain cycles and elevated regions to generate continuous electricity on demand whereas less natural pumped hydro systems draw from grid power to force water uphill. Other options require significant initial capital outlays such as geothermal energy that leverages the naturally occurring consistent heat of the Earth’s core.

Some experts point to nuclear energy, citing its steady capacity factor despite significant initial capital outlays. While nuclear fission is currently typical, nuclear fusion is emerging for its safer potential although both fission and fusion represent zero-carbon energy generation alternatives. Fission reactions are notoriously difficult to curtail once a meltdown or containment breach occurs, posing catastrophic risks. Nevertheless, nuclear plants require monitoring, extensive water cooling systems, along with other operational costs and resource strains.

Failing to capture easy-to-access and naturally occurring intermittent energy, when it is available, means the immediate opportunity to displace the burning of fossil fuels is permanently lost. To prevent intermittent energy from being wasted, it must be stored. Storing increased amounts of renewable energy significantly improves the reliability and availability of clean power for the grid, although the infrastructure footprint must be vast to compensate for storage conversion losses.

Currently, regulators allow companies to purchase unbundled RECs from non-local solar and wind farms that service entirely different regions than where the corporation actually operates. This unbundling allows out-of-state corporations to legally claim green attributes while continuing to pull unmitigated fossil fuel energy from their local grid. Since local markets usually only purchase the actual physical energy without paying extra for its certified green attributes, developers are left with massive sums of unbundled certificates.

With start-up and operating costs for running renewable energy plants already covered via physical energy sales, RECs created to incentivize renewable energy infrastructure development are simply sold for quick profits without offsetting capital expenditures. This often drives down their prices. Companies can then exploit markets with cheap renewable energy certificate prices, purchasing credits and failing to build new renewable energy infrastructure. Many of these renewable energy certificates are currently generated by significantly aged infrastructure.

In certain regional markets, an oversupply of renewable energy occurs where local demand is low, or at times when the renewable energy is at its peak such as daytime solar power. When the energy can’t be funneled onto the local grid because of a lack of demand or due to an oversupply, green energy production is curtailed or even wasted since it is often generated and not stored. However, the plants that generated wasted green energy can still issue and sell RECs.

Within the industry, experts critique the temporal mismatch of these certificates. Today’s carbon accounting relies on annualized aggregation, balancing a year’s worth of total energy use against a year’s worth of purchased RECs. This masks the reality that a company might be using daytime solar RECs, generated during oversupplied hours, to offset fossil fuel energy used up during nighttime operations.

Companies create a false appearance of carbon neutrality through these mechanisms. While Power Purchase Agreements (PPAs) are a preferred tool to help foster new investments in renewable energy capacity by directly funding new infrastructure, true decarbonization requires pairing these financial mechanisms with actual, local reductions in fossil fuel emissions.