Category Archives: networks

Gas leaks along the pathway of the newly built West Roxbury Lateral transmission line

(This blog post was updated 19th January 2017 with a correction to the interpretation of the leak data. The correction was offered by Professor Phillips. The blog author is responsible for the original misunderstanding. Apologies for any inconvenience.) The West … Continue reading

Posted in anomaly detection, Anthropocene, bridge to nowhere, corporate litigation on damage from fossil fuel emissions, energy utilities, environment, ethics, evidence, explosive methane, fossil fuel infrastructure, fossil fuels, gas pipeline leaks, greenhouse gases, Hyper Anthropocene, methane, Nathan Phillips, natural gas, networks, pipelines, public utility commissions, the right to be and act stupid, the tragedy of our present civilization, the value of financial assets, ``The tide is risin'/And so are we'' | Leave a comment

An example of technology the future will bring … Solpad.

In a recent interview, Professor Tony Seba of Stanford University predicted that solar+storage was going to achieve parity with average grid transmission costs by 2022. This is what he called “god parity”, because even if utilities generated at zero cents … Continue reading

Posted in Anthropocene, Bloomberg New Energy Finance, BNEF, Buckminster Fuller, business, clean disruption, CleanTechnica, climate business, conservation, consumption, decentralized electric power generation, decentralized energy, demand-side solutions, destructive economic development, disruption, distributed generation, economics, efficiency, electricity, electricity markets, energy reduction, energy storage, energy utilities, engineering, exponential growth, fossil fuel divestment, green tech, grid defection, Hermann Scheer, Hyper Anthropocene, investing, investment in wind and solar energy, Joseph Schumpeter, leaving fossil fuels in the ground, marginal energy sources, microgrids, networks, public utility commissions, PUCs, rate of return regulation, regulatory capture, Sankey diagram, solar domination, solar energy, solar power, Solpad, Spaceship Earth, sustainability, the energy of the people, the green century, the value of financial assets, Tony Seba, utility company death spiral, zero carbon | Leave a comment

A model of an electrical grid: A vision

Many people seem to view the electrical grid of the future being much like the present one. I think a lot about networks, because of my job. And I especially think a lot about network topologies, although primarily concerning the … Continue reading

Posted in abstraction, American Meteorological Association, anomaly detection, Anthropocene, Bloomberg New Energy Finance, BNEF, Boston, bridge to somewhere, Buckminster Fuller, Canettes Blues Band, clean disruption, climate business, climate economics, complex systems, corporate supply chains, decentralized electric power generation, decentralized energy, demand-side solutions, differential equations, distributed generation, efficiency, EIA, electricity, electricity markets, energy, energy reduction, energy storage, energy utilities, engineering, extended supply chains, green tech, grid defection, Hermann Scheer, Hyper Anthropocene, investment in wind and solar energy, ISO-NE, Kalman filter, kriging, Lawrence Berkeley National Laboratory, leaving fossil fuels in the ground, Lenny Smith, local generation, marginal energy sources, Massachusetts Clean Energy Center, Mathematics and Climate Research Network, mesh models, meteorology, microgrids, networks, New England, New York State, open data, organizational failures, pipelines, planning, prediction markets, public utility commissions, PUCs, rate of return regulation, rationality, reason, reasonableness, regime shifts, regulatory capture, resiliency, risk, Sankey diagram, smart data, solar domination, solar energy, solar power, Spaceship Earth, spatial statistics, state-space models, statistical dependence, statistics, stochastic algorithms, stochastics, stranded assets, supply chains, sustainability, the energy of the people, the green century, the value of financial assets, thermodynamics, time series, Tony Seba, utility company death spiral, wave equations, wind energy, wind power, zero carbon | Leave a comment

Natural gas: The Zaphod Beeblebrox of energy

Amber Lin at The Bulletin of the Atomic Scientists describes the two-headed character of natural gas plants needed to implement “natural gas as a bridge fuel”, and sketches the stark reality proponents of that argument are embracing if they are … Continue reading

Posted in adaptation, Anthropocene, atmosphere, Bloomberg, Bloomberg New Energy Finance, BNEF, bridge to nowhere, bridge to somewhere, carbon dioxide, Carbon Tax, Carbon Worshipers, citizenship, civilization, climate, climate change, climate disruption, climate economics, consumption, decentralized electric power generation, decentralized energy, distributed generation, electricity, electricity markets, energy, energy utilities, explosive methane, fossil fuel divestment, fossil fuels, fracking, gas pipeline leaks, global warming, greenhouse gases, greenwashing, Hyper Anthropocene, investment in wind and solar energy, leaving fossil fuels in the ground, Massachusetts, Massachusetts Clean Energy Center, methane, natural gas, networks, petroleum, pipelines, planning, politics, public utility commissions, PUCs, rate of return regulation, rationality, reason, reasonableness, regulatory capture, Sankey diagram, solar domination, stranded assets, supply chains, the energy of the people, the green century, the right to be and act stupid, the right to know, the tragedy of our present civilization, the value of financial assets, zero carbon | 1 Comment

France, and Mathematics

Cédric Villani, does Mathematics. “Problems worthy of attack, prove their worth by hitting back.” — Piet Hein

Posted in abstraction, Google, mathematics, mathematics education, maths, networks, Pagerank, percolation theory, point pattern analysis, probability, rationality, reasonableness, stochastic algorithms | Leave a comment

“Catching long tail distribution” (Ted Dunning)

One of the best presentations on what can happen if someone takes a naive approach to network data. It also highlights what is, to my mind, the greatly underappreciated t-distribution, which is typically only used in connection with frequentist Student … Continue reading

Posted in Cauchy distribution, complex systems, data science, Lévy flights, leptokurtic, mathematics, maths, networks, physics, population biology, population dynamics, regime shifts, sampling, statistics, Student t distribution, time series | Leave a comment

REV-NY

So, Massachusetts, why can’t you do this instead of proposing to build new explosive pipelines?

Posted in adaptation, Anthropocene, Arnold Schwarzennegger, Bloomberg New Energy Finance, BNEF, bridge to somewhere, civilization, clean disruption, climate, climate change, climate disruption, coastal communities, conservation, corporate litigation on damage from fossil fuel emissions, decentralized electric power generation, decentralized energy, demand-side solutions, destructive economic development, disruption, distributed generation, economics, efficiency, electricity, electricity markets, energy reduction, energy storage, energy utilities, engineering, environment, feed-in tariff, fossil fuel divestment, global warming, greenhouse gases, grid defection, Hyper Anthropocene, investing, investment in wind and solar energy, ISO-NE, Life Cycle Assessment, local generation, Mark Jacobson, mesh models, meteorology, methane, natural gas, networks, Our Children's Trust, pipelines, public utility commissions, PUCs, rate of return regulation, rationality, reasonableness, regulatory capture, resiliency, Sankey diagram, solar domination, solar energy, Solar Freakin' Roadways, solar power, SolarPV.tv, Spaceship Earth, sustainability, the energy of the people, the green century, the tragedy of our present civilization, the value of financial assets, utility company death spiral, wind energy, wind power, zero carbon | 1 Comment

On differential localization of tumors using relative concentrations of ctDNA. Part 1.

Like most mammalian tissue, tumors often produce shards of DNA as a byproduct of cell death and fracture. This circulating tumor DNA is being studied as a means of detecting tumors or their resurgence after treatment. (See also a Q&A … Continue reading

Posted in approximate Bayesian computation, Bayesian, Bayesian inversion, cardiovascular system, diffusion, dynamic linear models, eigenanalysis, engineering, forecasting, mathematics, maths, medicine, networks, prediction, spatial statistics, statistics, stochastic algorithms, stochastic search, wave equations | 3 Comments