Peninsula Advanced Energy Community (PAEC)

Accelerating the planning, approval, and deployment of an Advanced Energy Community in southern San Mateo County

About PAEC

PAEC provided an opportunity for the Clean Coalition to develop innovative, replicable approaches for accelerating the deployment of Advanced Energy Communities (AECs). Based on 25 megawatts (MW) of peak demand reduction, the initiative is anticipated to save energy consumers over $25 million, generate over $100 million in regional economic output, create $35 million in local wages, and reduce greenhouse gas emissions by nearly 800 million pounds over 20 years.

Key AEC components in the PAEC Initiative:

  • Abundant solar electricity, energy storage, and other distributed energy resources (DER)
  • Low or zero net energy buildings
  • Solar Emergency Microgrids for power management and support of critical facilities during outages
  • Charging infrastructure to support the rapid growth of electric vehicles (EVs)

PAEC is supported by a broad range of collaborators, including Pacific Gas & Electric and numerous local governments, and was made possible by a grant through the CEC’s Electric Program Investment Charge (EPIC) program.

Read or download the PAEC Final Project report.

Solar panels in the foreground overlooking a brightly lit cityscape at night.

Overcoming barriers to Advanced Energy Communities

PAEC showcased the benefits of an AEC, a replicable approach to modernizing the electric grid. AEC projects can provide significant energy, environmental, economic, resilience, and security benefits, but major barriers too often impede their planning and deployment. Finding viable sites, securing project financing, and connecting AEC projects to the grid all represent serious challenges.

The PAEC initiative was designed to overcome these barriers and establish a replicable model that can be used by other communities across California and beyond. PAEC results will inform future action by policymakers, municipalities, governmental agencies, utility executives, and other key stakeholders.

Aerial view of san francisco bay area with color-coded zoning map overlays focusing on redwood city and surrounding regions.

The PAEC region and beyond

San Mateo County, CA as a model for the US

The core region for the PAEC initiative is the southern portion of San Mateo County, including the cities of Redwood City, Atherton, Menlo Park, and East Palo Alto, and their unincorporated areas.

Many areas in California are experiencing commercial and residential growth pressure similar to that in the PAEC region. This means that elements of PAEC can be replicated in other areas.

Electricity pylon silhouetted against a night cityscape with twinkling lights and a hazy atmosphere.

Specific PAEC goals and objectives

This initiative aimed to:

  • Incentivize and accelerate the planning, approval, financing, and deployment of AECs.
  • Reduce the time, cost, and uncertainty associated with permitting and interconnecting commercial-scale solar and other DER.
  • Leverage zero net energy, efficiency, local renewables, energy storage, and other DER to reduce 25 MW of peak energy across southern San Mateo County.
  • Reduce the use of natural gas and minimize the need for expensive utility upgrades.
  • Create a model project and project elements focused on increasing economic, environmental, and resilience benefits that can be replicated throughout California and beyond.

Project findings and reports

The PAEC initiative produced a number of ground-breaking studies and reports. Subjects covered include the economic benefits of energy efficiency and fuel switching for commercial-scale buildings; electric vehicle charging infrastructure; energy storage; streamlining the interconnection of advanced energy solutions to the grid; and much more. Details are below; for more on report findings, see our PAEC webinar series.

Map showing locations of various facilities with designated emergency microgrid resources like solar power, batteries, and critical load areas in a city.

Master Case Study and Master Community Design

The PAEC Initiative studied projects that incorporate one or more components of an AEC and found dozens of projects worthy of emulation because they overcome economic or policy barriers. The team uncovered key findings about where to focus attention when developing AECs, in three main areas: economic, policy, and technical. The team also created a Master Community Design for an AEC in a disadvantaged community.

Modern gray office building with a large cherry picker extended towards one side, set against a cloudy sky.

Economic benefits of energy efficiency and fuel switching for commercial-scale buildings

The PAEC team studied the economics of eight energy efficiency measures for five commercial-scale building types. Using a consistent approach to calculate payback, each report analyzes measures such as LED lighting conversion, building management systems (BMS) and advanced controls, reduction in phantom loads, and more. The reports show which measures provide the most savings and quickest payback times, and how savings can be realized by bundling various measures.

Map view showing dense clustering of various location markers over the san francisco bay area.

Electric vehicle charging infrastructure (EVCI)

The PAEC initiative will foster the expansion of electric vehicles (EVs) by implementing smart designs, plans, and strategies for Electric Vehicle Charging Infrastructure (EVCI). Along with potential location evaluations, the PAEC team evaluated the cost-effectiveness to EV drivers of the EVCIs that offer the best value in terms of economic, environmental, and technical performance.

Line graph displaying daily load in kw from aug 1 to aug 5, showing battery, pv, and grid contributions, with an outage noted between aug 2 and aug 4.

Energy storage

Distributed energy storage is in its infancy. But as project costs decrease, the market is expected to grow rapidly. Resilient solar+storage systems can also add value to the grid and to communities. The PAEC initiative reviewed financial factors in moving the market forward, as well as the role of standardized and streamlined permitting for distributed energy storage.

Architectural rendering of a planned development featuring mediterranean-style buildings surrounded by trees with

Net zero energy: Atherton Civic Center

The new civic center plan for the Town of Atherton, in the PAEC region, studied key sustainable strategies that assist in lowering resource demand, including energy, water, material, and carbon. The study identified feasible, scalable, and regional strategies that can be easily replicated, while serving as an educational tool for the broader community.

Illustration of a fire department at night with two fire trucks parked outside, street lights on, and nearby buildings, some with solar panels on roofs.

Solar Emergency Microgrid

PAEC will include at least one Solar Emergency Microgrid that the Clean Coalition is designing to provide renewables-driven power backup to critical facilities. With a combination of solar, energy storage, and monitoring, communications, and control, Solar Emergency Microgrids can provide indefinite backup power for critical loads like police and fire stations, emergency operations centers and shelters, and communications and water infrastructure.

Satellite map showing various wind power generation readings across the san francisco peninsula, pinpointed by icons and power output statistics.

Solar Siting Survey to identify the potential for local solar generation

The Clean Coalition’s Solar Siting Survey methodology evaluates all prospective solar sites and the interconnection hosting capacity for each site. The methodology assesses the technical siting potential for built-environment sites, including rooftops, parking lots, and parking garages, which are essential for procuring wholesale distributed generation. A Solar Siting Survey conducted in the PAEC region in March 2017 identified more than 400 prospective commercial-scale solar sites with over 65 MW of commercial-scale solar photovoltaic (PV) potential.

Map of the united states showing various states colored based on construction timelines rules with legend, and stars marking significant locations.

Streamlining the interconnection of advanced energy solutions to the grid

Interconnection is a significant barrier in developing distributed energy resources (DER) and achieving statewide energy and emission goals. The PAEC initiative seeks to educate policymakers and stakeholders on beneficial reforms that will keep interconnection processes efficient and cost-effective while maintaining a safe and reliable electric grid. The initiative also establishes a pilot to facilitate interconnection for wholesale distributed generation projects.

Infographic showing barriers to becoming a smart green city, with funding and technical expertise as top challenges, depicted alongside a cityscape with renewable energy sources.

Streamlining local government planning and permitting

The PAEC team developed a methodology for prioritizing a set of model ordinances for further development, with associated recommendations for local government interventions in both existing buildings and new construction. Working with key stakeholders, the team identified AEC planning and permitting ordinances that can be scalable to other cities in the county and statewide.

Two people analyzing data charts and graphs on a paper alongside a laptop and notebooks on a cluttered desk.

An important goal of the PAEC Initiative was to provide a model and tools to help other communities around the US deploy Advanced Energy Communities. The PAEC team disseminated the valuable lessons learned from the Initiative through media coverage, blog posts on the Clean Coalition site, and a series of events.

A few highlights:

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