October 4 lecture: A Rising Tide Lifts All Bytes

A rising tide lifts all bytes: marine energy R&D at the Pacific Marine Energy Center

Humanity has been harnessing tidal power for more than 1,000 years, and producing electricity from tides for more than 100 years. Tidal electricity generation is greenhouse gas-free, eminently predictable, sub-sea surface, and often co-located with demand; yet tidal power has seen slower adoption and deployment than other renewables such as wind or solar power. In this talk, Dr. Benjamin Maurer will share what the Pacific Marine Energy Center is doing to address the remaining key challenges in tidal power and how that R&D plays into the changing market landscape for marine energy. From autonomous subsea robotics to underwater data centers, he’ll cover the promise and potential pitfalls of this renewable energy resource.

Benjamin Maurer headshot

Maurer is the Associate Director of the Pacific Marine Energy Center, a multi-university consortium dedicated to the responsible advancement of ocean energy technologies, and a researcher at the University of Washington’s Applied Physics Laboratory. He works closely with undergraduate and graduate students, startups, large corporations, regulators, government clients, and other stakeholders to address key challenges in harvesting power from the waves, tides, currents, and offshore winds. Maurer’s prior work includes positions supporting a $100M/yr US Department of Energy portfolio of ocean technology technology awards; conducting fluid dynamics experiments at the University of Cambridge GK Batchelor Laboratory; and piloting ROVs for the National Marine Fisheries Service. He holds a PhD in Oceanography from Scripps Institution of Oceanography, an MS in Engineering Sciences from UC, San Diego, and undergraduate degrees in Biology and Philosophy also from UCSD. He is an avid surfer, swimmer, and research diver.

Download the event flyer

The Sustainable Futures Speaker Series at Humboldt State creates interdisciplinary discussion, debate, and collaboration around issues related to energy, the environment, and society. Fall 2018 lectures are held on Thursdays from 5:30-7 pm in HSU Siemens Hall 108. For details on upcoming events or to request accessibility accommodations, visit our series events page or call (707) 826-4345.

From the fellows: Anamika Singh

Anamika Singh headshot

I am second year graduate student in the Energy, Technology and Policy program here at HSU. I am also a recipient of Blue Lake Rancheria fellowship for clean energy studies and a graduate research assistant at the Schatz Center. My primary interest lies in providing electricity access to rural communities through renewable energy technologies. I am writing my thesis on identifying the techno-economic feasibility of solar water pumping for public facilities in rural parts of Nigeria. At the Center, I am working on the development of a quality assurance framework for these systems, to provide guidance for gathering necessary data, assessing the hydro-geologic conditions, and designing an off-grid groundwater extraction and delivery system.

Before coming to HSU, I worked as a project engineer with the Bureau of Energy Efficiency, Government of India. My work primarily revolved around promoting energy efficiency in small and large industries and appliances. This summer, I began research at the Lawrence Berkeley National Laboratory focused on identifying the electrification potential for heavy industries, including cement, iron, and steel, in India. The project aims to identify the parity price at which electrification via renewable energy technologies can become feasible – with the end goal of reducing coal demand and mitigating CO2 emissions.

~ Anamika Singh

Electrifying transportation at HSU

Two cars, with the fuel lines crossing over each other, charge beneath redwoods

HSU’s first electric vehicle station has already provided 60 “charge ups” in the month since fall semester began. Vehicles charged for an average of 2 hours, obtaining an average of 8 kWh of energy, up to a maximum of 31 kWh — and there were 16 times where the primary EV and the ADA parking spot were charging simultaneously.

Since the EV station was installed in early May, it has provided 126 charge ups, that powered 3,600 miles of travel, and avoided the combustion of 117 gallons of gasoline and the emission of 800 kg of CO2e.*

On October 11 at 5:30 pm in Siemens Hall 108, the Sustainable Futures Speaker Series will host a panel discussion on “Achieving 5 million zero-emission vehicles in California by 2030.” Experts from local planning, state regulation, mass transit, and advanced fuel infrastructure development will share strategies for achieving a zero-emission vehicle rollout on the north coast.

A plot shows each charging event at the station, with three slopes -- initial at .5 charges per day, summer at .9 charges per day, and current at 2.3 charging events per day.

This plot shows the increasing use of the station since installation – from less than one charge per day in May, to more than two charges per day since fall semester began. Vehicles may charge for up to four hours at a time. – Graph by Charles Chamberlin, derived from live station data

HSU’s EV charging station is located to the south of the Schatz Energy Research Center (across from the BSS building on the south side of campus). This station can provide charging for either of two adjacent parking spaces. One parking space is EV-only; parking here is limited to four hours, and the vehicle must be charging while parked. The second space is ADA parking (EV not required). HSU parking permits are required for both spaces.

*We assume a vehicle efficiency of 0.325 kWh/mi for EVs, and 31 mpg for gasoline vehicles. Carbon emissions are calculated using the gasoline carbon intensity of 8,815 g CO2e/gallon from EPA emission estimates, and HSU’s 2016 electricity carbon intensity of 192 g CO2e/kWh. (The electricity carbon intensity is the emissions rate associated with the power currently being purchased or generated by a particular source.)

Quality Matters: a new report from Lighting Global

The Lighting Global Quality Assurance Program works to ensure that solar products sold around the globe meet established quality standards for product durability, representation of product performance, and warranty. To obtain quality verification, manufacturers may submit products for testing at laboratories in the Lighting Global network.

Pico-solar products include lanterns and simple systems with a peak PV module power up to 10 watts. These small systems encompass 85% of the global cumulative sales of off-grid solar devices. Although more than 30 million quality assured off-grid solar products have been sold globally over the past eight years, the sales numbers for products that do not undergo quality verification (hence are “non-QV”) is even higher. Field observations and customer experiences indicate that non-QV products typically underperform compared to the standards established by Lighting Global.

In order to ascertain the actual performance of these devices, Lighting Global laboratories recently tested 17 pico-solar non-QV products that are top-sellers in Ethiopia, Kenya, Myanmar, Nigeria and Tanzania. Products were purchased direct from market retailers.

Key results:

All 17 evaluated products failed to meet the Lighting Global Quality Standards for pico-PV products.

  • 94% of the tested products fail to meet the Standards due to one or more deficiency that
    affects product durability.
  • 88% of the tested products inaccurately advertise product performance.
  • 88% of the tested products do not include a consumer-facing warranty.
  • 76% of the tested products would require significant changes to product design and
    components to meet the Quality Standards.

The Lighting Global Quality Assurance team issued the report this August as part of the Technical Notes series. Chris Carlsen (a Schatz Center alumnus) led the effort in collaboration with team members from CLASP, the Schatz Center, World Bank Group regional lighting programs, and the Lighting Global network of test labs.

Read the complete report on the Lighting Global website…

Corroded batteries, shown inside and removed from the product

NiMH batteries with leaked electrolyte: When a battery is faulty, of low quality, or stored at a deeply discharged state, the battery cell can rupture and leak electrolyte. The battery pack in this product was not functional, and has leaked corrosive chemicals that damaged adjacent electronic components. – From page 12 of the Quality Matters report