1. How much energy is produced in germany? -→ You need to segment between families (# families * average daily consumption * days) and business needs (this one is quite hard actually… I would suggest taking industrial GDP, considering a % of the industrial value add going to energy to estimate the energy cost, and then dividing the energy cost per price of kW).

Please note this gives you consumption, not production. For consumption you need to know whether germany imports or exports energy. 

2. How much (%) of the produced energy is from renewable sources?

This is just the first layer of the answer. You should be able to take it from here .

Hey there,

The short and honest answer would be: Not enough given the current situation.

All jokes aside, the rule of thumb here for market sizing/estimation questions is to first post your own approach and have others comment on it and improve it.

The benefit is twofold:

1. You work on the problem yourself and have at least considered a couple of ideas before asking for help
2. You will not only get an approach but also an evaluation of your answer that helps you understand what your answer was lacking (= bigger learning effect)

Cheers,

Florian

Hi there,

This is an interesting question! I have tried and calculated it to be 360 Terra watts per year (assumed it is asked for annually). My approach is as follows and would really appreciate it if any coaches could provide honest feedback: 

Total renewable energy produced in Germany = Total Energy required (assume supply = demand) x % of Renewable energy 

1. Total energy required = Energy for privates uses (assume the composition is 70% of total) +  Energy for public uses (assume the composition is 30% of total). Hence, Total energy required = Energy for private uses / 70%

Energy for private uses = Energy required per household x # of households

a. Energy required per household per year = 5,000 KWH (assumption) x 16 hours (assumption: 16 hours of activity) x 30 days x 12 months = ~ 32,000 MW (Simplified 30 days x 12 months to be 400 instead of 360. Hence, 5,000 x 16 x 400)

b. # of households = 100 M (Assumption: Population size)  / 2.5 (Assumption: average people in one household) = 40 M Households

Energy for private uses = 32,000 MW x 40 M = 1,280 Terra watts

Total energy required = 1,280 Terra watts / 70% = ~1,800 Terra watts

2. % of Renewable energy = 20% (Assumption: renewable energy makes up 20 % of total energy required in developed country)

Total renewable energy produced in Germany = 1,800 Terra watts x 20% = 360 Terra watts per year