Archive of category "DR"

by Tony Sirna

Nissan LEAFI’ve been doing a bunch of research lately on electric vehicles to see what might make sense for us at Dancing Rabbit Ecovillage for our vehicle co-op. For 12 years we have been focusing on biodiesel and vegetable oil based fuels but things have not always been smooth. The main issues have been related to winter fuel gelling and fuel filters clogging in general. We’ve also never gotten a steady system for  collection of used oil and production going, so we have been using biodiesel made from new veggie oil which is only marginally better for the environment than petroleum.

We are now embarking on a major re-evaluation of vehicle technologies for our co-op, with a team researching things like electric vehicles, hybrids, ethanol (including home made, potentially from cellulose), bio-gas, wood-gas, human and animal powered, and any new technologies in the veggie oil world.

My interest in electric vehicles (EVs) has come out of my research into a village-wide electric power co-op with a largish wind turbine to power our whole village. With an abundant source of renewable electricity, EVs could be our most ecological option. There are ecological issues related to batteries of course, but my research shows that EVs are a net benefit over petro based vehicles and on par with other bio-fueled options currently or soon to be available (more on that in a post soon).

Of course the main issue with EVs is about range – how far you can drive on a single charge. Most all-electric vehicles (sometimes called Battery Electric Vehicles or BEVs to distinguish them from hybrids) still have ranges in the 80-100 mile range. That range is great for most folks daily commuting needs, but our rural location means many or even most of our trips are 80-150 miles.

A further complication, is that a 100 mile advertised range does not always mean you can drive 100 miles. Accessories like A/C, heat, lights, etc. can reduce your range. Higher speeds and hills also reduce range (and while we don’t have mountains we do have hills). Winter temps can also reduce battery capacity and range.  It also matters how you drive – fast acceleration and breaking are inefficient.

So what are our options?

In the All Electric Category I found the following vehicles available now or in the next 18 months.

Vehicle Range Cost
Nissan LEAF 100 miles $33,000
CODA 90-120 mi $30-40,000
i-MIEV 80-100 mi $30,000
Mini-E (2 passenger) upto 150 Unknown
Ford Focus 80-100 mi Unknown
Ford Transit Connect 80 mi Unknown
Tesla Sedan (claims to seat up to 7) 160-300mi $57-75,000
Think City 100 miles $37,0000
Conversion Kit Vehicle 25-80 miles $20-30,000

The most appealing for us would be the Tesla Sedan because of the extended range it can provide. The price tag is pretty high though. The Nissan LEAF is definitely more affordable, but its unclear if it would really get us where we need to go (and back that is). The CODA is still limited in its availability.

For folks living in suburban or urban areas with shorter commutes I think a lot of these options would work great.

I also looked into Plug-in Hybrids such as the upcoming Chevy Volt and the 2011 Plug-in Prius as well as the various Prius Plug-in conversion kits.

The Volt is expected to have a 40 mile electric range and get 50 mpg once the gasoline (or E85) engine kicks in.  The 2011 Prius will have only a 15 mile electric range and also get around 50 mpg. With a Prius Plug in conversion you can get electric ranges of 25-50 miles before it goes back into hybrid modde and gets 46-50 mpg (depending on model year).

Its too bad the electric range on these hybrids is so short. If you could get something with an 80 mile range and a gasoline/diesel back up that would really work well for us and for a lot of people I would think. Obviously the cost and weight of having a big battery pack and a gas engine is probably the issue.

I’m expecting that once these EVs are available,  someone will come up with an aftermarket add on battery pack to increase the range, just like there are plug-in Prius kits. That could be just the ticket and demonstrate the demand for EVs with a bigger range.

by Tony Sirna

Today there is  a blogathon happening at Dancing Rabbit. Its a fundraiser so please consider donating to Dancing Rabbit.

We’ve been promoting the blog as being Pedal Powered but the company that was supposed to ship us the pedal powered generator never shipped the product! Annoying…

So last night I went into McGyver mode to see if I could come up with some way to power the blog with a bicycle. I had less than 24 hours, so I had to use what was on site or could maybe go to an auto parts store (in the end I didn’t have to). Here’s what I came up with:

First I found an old training stand and mounted my bike on it.

Bike on Training Stand

Bike Mounted on Training Stand

Then I found an old cordless drill that I hadn’t used in years because it wouldn’t go in reverse. I hooked up some wires to where the battery would connect and then connected it to the training stand.

Cordless Drill For Bike Generator

Cordless Drill For Bike Generator

Then I found a pocket inverter that would convert 12 Volt Dc to 120 Volt AC and hooked that up to the wires coming from the drill.

Pocket Inverter

Pocket Inverter

Using a volt meter, I could adjust the speed of my pedaling to keep the voltage around 11 to 14 Volts. We then turned on the inverter and powered a lightbulb as a test.

Pedal Powered Generator Made from a Cordless Drill

Pedal Powered Generator Made from a Cordless Drill

Later today we’ll be hooking this up to a computer. I don’t know if we’ll be able to keep the computer powered the whole 24 hours like we had hoped but its at least something and not too shabby given 24 hours and all the parts were already on site.

Update: When we tried to plug in the computer the higher current draw made the voltage drop below the inverter’s cut off point, and we couldn’t bike fast enough to keep up. I went and found a small 12 Volt solar charge controller and a tiny 12 Volt battery and now the generator charges the battery as it is powering the computer.

I’ll be posting more during the Blogathon and don’t forget to Donate to Dancing Rabbit.

by Tony Sirna

At Dancing Rabbit we have been using consensus to make decisions since our inception. In consensus, decisions must be agreed to by all members of the group, with any member being able to block a decision. In practice, we now delegate a lot of decisions to committees and managers, such that the group is only called upon to make larger policy decisions.

We are at a stage where we are considering moving away from consensus to some other form of decision making. Discussions are in the preliminary stages, but one of the desires for a new system is to allow for better delegation and more streamlined management (at least some people express this desire).

It’s gotten me thinking about delegation and management and what it means to make good decisions on behalf of the group. I’ve started to realize that their are deep questions embedded here that touch on what it means to have good governance in almost any system.

How then do we define a good decision, or good management?

In a consensus organization, I would propose that a manager makes a good decision when she or he makes a decision that is essentially in line with what the group would have made if it had used its full consensus process. Another way to say this is that, if given a review by the membership, no-one would block that decision from moving forward.

Making such decisions is not always easy. It involves not just having good judgment on the topic at hand but also a strong sense of the group’s values and how to weigh them when making a decision. In a group that is functioning well, and with a manager who engenders trust from the group, the group will generally give them the benefit of the doubt as it takes a lot of effort and spending of social capital to object to a manager’s decision. So the manager does not need to be perfect, just make sure their decisions are within the threshold of the groups tolerance and/or passivity.

In a hierarchical system, I suppose that a manager is trying to make the decisions their boss would make if they were making them, or at least getting close enough to that target to avoid a decision being overturned by a boss or some other form of reprimand. Managers with people under them also have to “manage down” meaning that they must consider how their decisions will affect their staff. Hopefully, these two interested parties are not in dissent or you can be in trouble. But in such a case the manager would usually side with their boss as the bottom line and the staff can take it or leave it. (At least that’s how I remember hierarchies working – its been awhile :-) )

For those at the top of the hierarchy, its gets a little more confusing. For a CEO, a good decision is probably defined as one that will maximize the (long-term?) profitability of their company (though might, in fact, be tailored to maximize their bonus). For a non-profit, you might say the goal is to maximize the achievement of the organization’s goals.

But what of the mayor of a town or the president of a country or any representative in a democratic system. How do we measure their success or the quality of their decisions?

One could say that, it is again more like consensus, in that the goal is to make the decisions that the people would have made themselves, if it were practical to make decisions that way. Some might argue that this isn’t true – that a leader is sometimes expected to make better decisions than the people would make themselves. My gut says this is true, but what then defines “better”?

I suppose one could say that if there were an accepted measure of the prosperity of a city, nation, etc. then decision-makers could work to optimize for that metric. This could take the form of something like the Genuine Progress Indicator but its hard for any such metric to take all factors into account.

One could argue that in a functioning democracy a leader will know if they are making good decisions (or at least good enough) if they can get re-elected. Unfortunately, I’m not sure that most democratic systems of any large scale are functioning so well as to make sure that leaders are evaluated by the quality of their governance and not by their ability to raise funds, campaign, etc.

Going back to Dancing Rabbit, what guidance should we give to committees and managers whom we delegate power to? How should their decisions be evaluated? When should they be overturned? How much leeway do you give someone to diverge from what the group would decide?

In some ways, it puts the membership in the position of trying to be good at “managing down”. If the group wants to best achieve its goals there is a balance between finding the optimal decision and making a decision efficiently. When managing down, it is often best to give people a fair bit of leeway to use their own judgment even if its not exactly what the “boss” would decide, because otherwise you will likely have some very unhappy staff muttering a lot about micro-managing. It is not that different when “the boss” is the whole group. They must give people enough guidance and autonomy to do their jobs in a way that they will help them feel satisfied, while still expecting decisions to be reasonably in line with group values.

But how do you tell when a manager should be given the leeway and when they are going rogue, or just doing a bad job? How do you know when to ask that decisions be run by “the boss” and when do you just let them decide? When do you overturn a decision? When do you fire someone? When is the boss (group) micro-managing or being a (collective) control-freak?

I will say that finding that proper balance seems like a tricky task for a large group to execute well using consensus. I look forward to the day when DR delegates that task to a small group (call it a Town Council if you will). I think if you then choose the Town Council to have decent management skills they can more easily make those tough calls. They will still have to answer to the whole group in some way, but then you have simplified the groups management task to whether the Town Council is doing its job well, not whether each manager or committee is doing their job well. Not trivial, but hopefully something that is actually doable (I was going to say manageable but I couldn’t stand the pun!).

by Tony Sirna

When we started Dancing Rabbit Ecovillage back in the day we spent a lot of time talking about theory. Why start an ecovillage? What impact can we hope to have? Why not some other project – something urban or working within politics?

In my youthful zeal and naivete I would throw around phrases like “saving the world” or “fomenting radical change” with the full expectation that our efforts would do just that. Soon I realized the egotism in such statements, thinking that I (or we) would have such a huge influence seemed a bit self-indulgent.

And yet, I wouldn’t be doing Dancing Rabbit if I didn’t think it would change the world. I love my day to day life and am truly happy with the life I have chosen, but I also seem to have an unflappable urge to feel like I am contributing — doing my part to make the world a better place.

So how is Dancing Rabbit changing the world?