Las islas, de dependencia energética…

…a independencia o interdependencia?

El 5 de Noviembre en Lanzarote, tuvo lugar el Foro 2nd Clean Energy for EU Islands, sobre incrementar las energías limpias en las islas.

Uno de los objetivos de muchas islas, especialment en las estrategias compartidas por las regiones ultraperiféricas es la «independencia energética».

Es verdad que el objetivo 100% renovable puede ser más “fácil” en islas. Pero es la independencia energética el mejor escenario?

Arrecife desde el Charco de San Ginés, iluminado sobre todo por combustibles fósiles… pronto más por renovables con la interconexión con Fuerteventura

Veamos algún ejemplo:

 

…sería más efectivo para la isla de Mallorca ser independiente energéticamente, que tener la interconexión eléctrica con la península?

O tendrían un futuro más próspero las islas Cíclades intentando ser energéticamente independientes que interconectadas con el Peloponeso?

No. Es obvio que las interconexiones eléctricas (cuando son técnicamente viables), combinadas con generación renovable local, elecrificación del transporte y electrificación de la economía en general, puede ser el acelerador más eficiente hacia la descarbonización.

La interdependencia energética mediante interconexiones es en muchos casos más sostenible, económica, social y medioambientalmente.

Por qué? La penetración renovable se maximiza, la fiabilidad puede aumentar y los precios energéticos pueden ser menores.

La interdependencia tiene que ver con las sinergias, con la colaboración. En el caso de las islas, ser capaz de sobrevivir solos, pero prosperar conjuntamente.

Si quieres ir rápido, ve sólo. Si quieres llegar lejos, ve acompañado. (Proverbio africano)

En conclusión, las islas deberian apuntar a la interdendencia energética sostenible.

Si no es posible con interconexiones eléctricas, mediante el comercio de otros vectores energéticos neutrales en carbono, o mediante sea energy harvesting por ejemplo

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Resiliencia, embalses y regreso a la media

Este año se ha producido en España un sorprendente “regreso a la media” acelerada en el agua embalsada en los primeros meses.

Basta observar la gráfica de agua embalsada en 2018, comparada con el año pasado, el anterior y la media de los últimos 10. La pendiente de subida del año es casi perpendicular a la de 2017 y se ha alineado con la media de los últimos 10 años.

Fuente: Embalses.net

Lo curioso de este asunto es la siguiente cuestión; Sigue leyendo

Alquilando eléctrico en Palma

Este verano he dado el salto a alquilar coche eléctrico (un BMW i3) para las vacaciones, y aquí cuento el resultado;

Cuánto más me ha costado?

100 € más de precio de alquiler para una semana. De entrada cuesta pagarlo, pero bueno… (especialmente cuando tienes una tarifa buena como la que tiene negociada mi empresa y puedo disfrutar para viajes personales…)

Ha valido la pena?

Sí, por la experiencia de conducción, la sensación de sostenibilidad, pero también económicamente;

Estos 100€ me habrían permitido rodar aprox 1000 km con la alternativa de combustible (Renault Captur).

No he rodado tanto, pero casi, porque el trayecto Aeropuerto de Palma-Costa de los Pinos lo he hecho 3 veces, además de unos 30 km diarios. La electricidad de carga me ha salido gratis porque estaba incluida en la casa de alquiler y en la carga rápida que hice 2 veces.

WP_20170819_20_38_07_Pro

Cargando en Cas Tresorer donde sólo funcionaba el molino multipala reconvertido, por lo que cargaba eólica 😉 –> (como proponen desde Amics dels Molins)

Ansiedad por quedarme sin batería? Sigue leyendo

The flight “dilemma”

As an international sales manager I have to travel within Europe and Africa regularly… This means a lot of air travel.

So, the dilemma I face is;

While I work to make SDG7 a reality by making grids smarter and greener, at the same time I have a huge carbon footprint by flights.

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I know many other people have this “flight dilemma”, do you?

This issue is also related to SDG13 (Urgent action to combat climate change).* How? Sigue leyendo

NZEB + EV: The decarb combo

Are you aware of these stats?

  1. Buildings account for 40 % of energy consumption and 36 % of energy emissions (EU data)
  2. Road transport accounts for 25 % of energy consumption and 20 % of energy emissions (EU data and EU stats)

Then, what happens when we combine NZEB buildings (net Zero Energy Buildings) with local renewable generation and EVs (Electric Vehicles) charging in these NZEB?

NZEB & EV.png

It’s obvious… -> We can decarbonize 65 % of the energy system!* Sigue leyendo

Publication: PV on water channels. Avoiding evaporation through power generation

We recently got published the following article on Elsevier’s Solar Energy:

Solar Energy  Water canal use for the implementation and efficiency optimization of photovoltaic facilities: Tajo-Segura transfer scenario

Solar Energy, Volume 126 , March 2016, Pages 168-194 A. Colmenar-Santos, Ángel Buendía, Carlos de Palacio, David Borge-Diez

http://authors.elsevier.com/a/1SPkc,tRczt1q

(Note: The article can be accessed for free for a short time!)

FI 2014:  3.469

You might want to have a look at the results… Sigue leyendo

On the road to Energythaca: Crossing the Chasm.

There are many optimistic signs that we are correcting the route and heading to Energythaca*:

a-silhouette-of-the-pope-1-1095168-m

image by Krzysztof Szkurlatowski; 12frames.eu

The road is not easy, there will still be more denialism to climate change, inertia of the carbon era, and fierce opponents to the energy transition because of personal economic interest. Now it’s no longer the visionaries, and the early adopters shifting to sustainability, but already the early majority and part of the vast majority that is stepping forward. We are crossing the chasm, so I’m sure everything is going to speed up dramatically. However, to get the consevative and pragmatist majority to change the behavior it must be made easy, through robust and economic solutions, art, creativity, education, etc. Apart from using change management knowledge to adapt to climate change, we also have to apply the marketing knowledge to get sustainability (and sustainable technology adoption) to be mainstream. For example, the use of Electric Vehicles must be made simple, affordable, and charging in highways easy for the majority, in order to make it mainstream. Other examples lay in how we market recycling, use of home automation, smart meters, selfconsumption renewables, etc. All these need a marketing approach, as does the whole climate change and sustainability concepts.

Image from wikimedia commons, by Cragi Chelius

Image from wikimedia commons, by Cragi Chelius

*What is Energythaca? It is the treasure island we are looking for, where we can do more and better with the energy resources and within the boundaries of the planet. In Energythaca there will be abundance of renewable energy, no CO2 emissions above the capacity of the earth to absorb, and pollution will be eradicated. We will be resilient to the inevitable climate change we have already produced, we will have universal access to sustainable energy, the right to generate our own energy will also be universal, and the world resources will be used in a circular economy. In fact, energy is one of the parts of the age of sustainable development, but a critical one. Energythaca is thus, the best energy world this generation can build and leave for future generations.

Focusing on the “middlemen”

Why forget the “denialists” and skeptics on climate change and focus in the inactive and passive? They have the key, because they are the many. They, in fact, are going to be the ones who save us from the effects of severe climate change. Just like the political centre and the undecided are key to winning an election.

Why forget about criticizing inactivity from the culprit of superior morals and responsibility? This doesn’t work. To make those people realize they need to act responsibly we have to be positive, “hearty in our approbation and lavish in our praise”. Or “If You Want to Gather Honey, Don’t Kick Over the Beehive” as Dale Carnegie put it.

Focus on their higher motives and values. They are good people and they care about the environment. They are doing their best. They don’t need to be told what to do by environmentalists who are too “exalted” and “intense”. They need an easygoing way of doing the right thing, even unconsciously.

That is why i agree with the statement “we need more storytelling and art in climate education and less charts and power points“…

Inspiration for the subconscious instead of enforcing and trying to teach to the conscious.

An example is why I think the culture and art of “cool” bikes (An example of this art is Manu Campa’s paintings) is stronger to get people biking than the list of “100+ benefits from commuting with bike”… Another example is why the BMW i3 and the Tesla sell so good, not because of rational economics or because of environmental concerns, but maybe because they are more expensive and subjectively worth the extra money.

At the same time that we inspire the “middlemen”, as I already posted before, other lessons from “change management” theory should be put in practice in order to adapt to climate change.

Bike immortality, efficiency that never dies

This post shows my new taste for classic bikes… and is also a mix of energy efficiency advocacy and touristic scenery I hope you will like!

Living in Sweden for the last month and a half, I was amazed by the rich quantity…

Bikes in Vasteras Centre

Bikes parked in Vasteras Centre

…and the colourful variety of bicycles around.

Bike decorating shop

Flowered bike decorating shop

I’m not saying nothing new if I highlight the multiple benefits of bicycles for the cities, and for the individuals… so i’ll skip that.

 

What I want to highlight is the immortality of bikes. The older the bike, the more efficient is the “asset utilization”, and higher the return, let’s call it MROEI (mobility return on energy invested). And as long as the frame is fine, by changing tires and brake-pads, a bike can basically live forever. An example, the following picture from a bike almost 70 years old:

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Sea Energy Harvesting – off-shore

Of course, onshore resources are first.

Of course, it will take a long time before it’s real business, but we can start with the vision…

Where is the most “energy intense” location on earth in terms of wind, solar and other renewable sources? Is it onshore or off-shore?

Let’s see what sea energy harvesting is about…

Derived from Image by http://www.freeimages.com/profile/leonardobc

Concept derived from Image by http://www.freeimages.com/profile/leonardobc

There was in 2011 an interesting research I recommend here, that overlapped the irradiation and the temperature, in order to determine where solar can yield more, given the PV panels are less efficient the higher the temperature. The resulting optimal areas for generation where the Himalayas (not too accessible), the Antarctica (similar to off-shore) and regions in the southern Andes.

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