Category Archives: Greenhouse Gas

AB 79: Quantifying Hourly GHG Emissions from Unspecified Electric Generation Sources

Accurately quantifying and allocating greenhouse gas (GHG) emissions to the causal load is a fundamental practice in climate planning.  Emissions from unspecified sources remains a blind spot in accurately quantifying and accurately allocating GHG emissions in GHG emission calculations. We … Continue reading

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Preparing for A Generation of Electric Vehicles: Incentives and Infrastructure Development

Growing popularity of zero and near-zero emission vehicles among consumers and car manufacturers has not gone unnoticed by the legislature.  The 2017 legislative session revealed a push in favor of increasing the amount of such vehicles in the State through … Continue reading

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2017 Legislative Session Take-Away: Major Focus on Low-Income and Disadvantaged Communities

In the 2017 legislative session, there is a clear trend that shows the intent to focus and prioritize energy and climate policy for low-income and disadvantaged communities.  This post will provide a short analysis on the priorities broken down by … Continue reading

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GHG Emissions Reporting in the California Independent System Operator (CAISO) Energy Imbalance Market (EIM)

On Monday, the CAISO hosted a call to review the Draft GHG Emission Tracking Report and methodology paper that explains the draft’s preliminary results.  The report shows estimated GHG emissions for dispatch of internal CAISO resources, net imports (including dynamic … Continue reading

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AB 1110: GHG Emission Intensity Reporting for Electricity, Causation, and the Problem of Electricity from Unspecified Power

The issue of accurately attributing greenhouse gases (GHG) to the load that caused the emission remains a difficult issue for GHG accounting.  We previously posted about causation as the basis for attributing GHG emissions from electricity. In this post, we … Continue reading

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SB 32 and AB 197: Future GHG Reduction Targets and Oversight

The Legislature enrolled SB 32 and AB 197 on August 25, 2016.  These bills create both the future target that will govern GHG emission reduction programs and a higher level of legislative oversight over the California Air Resources Board (CARB).  … Continue reading

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Tracking GHG Emissions in a Regional ISO: California Stands Alone in the West

When the California Independent System Operator (CAISO) released its original Proposed Principles of Governance for a regional independent system operator (ISO), it included a proposal for the development of a methodology to track and account for emissions that are attributable … Continue reading

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Does Your Rooftop Solar System Reduce Your Carbon Footprint? It Depends…

At first glance this is a pretty straight forward issue. If you put solar modules on your home or business, you are generating clean, emissions-free electricity. Right? Well, it depends…in part on how you paid for your system. If you … Continue reading

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Causation as the Basis for Attributing Greenhouse Emissions from Electricity

I have written about the importance of electric emissions factors to estimating greenhouse gas emissions in inventories and the impacts of policies to reduce emissions (see here, here, and here). This post discusses the issue of attributing emissions from electricity … Continue reading

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GHG Emission Targets v. Limits: The Constitutionality of Executive Orders S-3-05 and B-30-15

Recently, Legislative Counsel Dian F. Boyer wrote an opinion answering questions from State Senator Jean Fuller of California’s 16th Senate District regarding California Global Warming Solutions Act of 2006 (commonly known as AB 32) and Executive Branch Authority. The nonbinding … Continue reading

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