15

You have to get several numbers: payments how much will you pay to obtain the PV system how much will you pay on taxes, recycling fees from the PV system etc. returns how much will you get back from produced power how much will you save on your electricity bill (price of electricity is rising) how much will you be payed from incentives (if any) ...


15

If you are in the U.S. in particular, I would recommend the National Renewable Energy Laboratory's PVWatts calculator, which will provide both likely solar gain (the defaults are reasonable, but you can tweak them to your situation) and potential savings on electricity. For installation costs, again for a US case, LBNL has a great report on installed costs (...


14

If your want to calculate your own Insolation figures then I would highly recommend having a look at the gaisma website, which provides sunrise, sunset, dusk and dawn times for thousands of locations all over the world. For our purposes though, it also provides details of average Insolation (kWh/m²/day), along with Clearness, Temperature, Wind speed, ...


14

Generally speaking, any water consumption will lower the water table. But if the aquifer is being steadily replenished and less water is drained from the area, then the only concern is the current depth of existing wells. Some might need to be drilled deeper, if the water level drops. Then the total water table lowering might be bigger than expected. There ...


10

Build 3 houses. It takes that long to learn enough to get it right. Live in each one for a while, so you can learn the consequences of your decisions. Really, there's a lot to learn in designing and building a house. Anyone can learn it, but it takes time. Start by learning conventional house construction. There's a lot of hard-learned wisdom encoded in ...


8

If the govt offers reduced tax for particular types of ownership (eg non-profit organisation), then you could look at how you could use that as an option to make it easier. The reality is that in most developed countries we need a certain minimum amount of money to do various basic things, such as own land. Many would consider that you are still getting the ...


6

I think the best tool freely available at the moment is the System Advisor Model (SAM) by the National Renewable Energy Laboratory (NREL) of the US. For Europe/Afrika a good starting point is PVGIS.


5

(This didn't fit in a comment.) 3 years to learn about earth houses, Japanese architecture and aquaculture? Well, you better get busy. If you are planning to help build it, you should do an apprenticeship with someone designing sustainable housing, permaculture or anything related. You can learn a lot in 3 years, but you can never learn enough. There are ...


3

I can't comment on Panama/Guatemala, but in the UK, at least in theory: EIAs are normally conducted by third-party consultants. These consultants are usually hired by the prospective developer, and some might argue that this makes them non-independent (although bear in mind that they also have reputations for rigor to preserve). What protects the ...


1

Google's Project Sunroof is fairly basic, but very easy to use. https://www.google.com/get/sunroof


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