Questions & Answers Energy Project, Scots International Church Rotterdam
Members Energy Team:
Pam Russell, Daniel de Jong, Jim Taylor, Andre v.d. Velden, Fred Booman
What is a LED:
LED stands for Light Emitting Diode which uses far far less energy to produce the same amount of light.
Why replace the traditional light bulbs:
We will immediately save on the amount of energy used by the church and the saving will pay for the LED bulb in about 500 hours.
They also last longer increasing the overall saving for the church
Solar panels do not produce electricity on a cloudy day:
Solar energy will still be converted on a cloudy day. Light is more important than sunshine
How many panels will SICR need to cover consumption:
A reduced consumption of KWh has to be implemented first via LED before the number of panels can be calculated. Probable number between 45 and 55 (tbd later)
Why reduce the consumption first before installing panels:
One should never produce more KWh than the actual consumption because SICR will only get a minimal amount back per KWh from the Energy Supplier: at present ca. 0.05 E back per KWh
How can one reduce the consumption of SICR?
Reduction is possible via installation of LED bulbs. Making congregation ECO aware.
Order of reduction and optimization?
Phase 1: replace traditional bulbs by LED
Phase 2: install Solar Panels
How many KWh did SICR use in 2014 / 2015?
Manse in 2014: 3300 KWh
Manse in 2015: 1150 KWh
Church in 2014: 14500 KWh
Church in 2015: 15700 KWh
Muller house in 2014: 1800KWh
Muller house in 2015: 2000 KWh
Target values (to be confirmed) after LED and Minister living in the Manse?
Manse: 3000 KWh
Church: 12000 KWh
Muller house: 1600 KWh
Are size and orientation of roof important?
Yes, the size and orientation of the Church Roof is optimal for installing max.
60 PV panels and the roof has no shade at all.
Size: 20,30m x 10m
Orientation: South West
What is a Solar Panel (PV) ?
A PV panel produces a DC current because of the solar energy.
Typical production: 225 KWh/year (average)
Lifetime: up to 30 years. Colors blue / black
Return on Investment: 7 years (average)
What does the technical installation look like?
The total installation consists of PV Panels, an Inverter and some internal cabling .
What is an Inverter?
The inverter takes care of DC conversion into AC which facilitates a direct connection with the public electricity grid/network.
SICR will only need one Inverter
Lifetime: 10-15 years
No, maintenance, but cleaning now and then makes sense.
It will be possible to monitor each separate panel for fault finding or a need for cleaning.
Today SICR has 3 meters (Manse, Muller and Church).
i.e. 3 times fixed cost. First action will be to reduce
number of meters from 3 to 1. It will still be possible
to gather separate data from the Manse and Muller House.
Saldering is the process of supplying KWhs produced by the solar panels of SICR to the national energy supplier.
SICR will get the same price for each KWh when delivered to the national grid.
Saldering only makes sense as long as you do not produce more KWh than you consume (on a yearly basis).
The equipment must comply with systems that can accumulate energy via batteries (after 2020)
Donation / Payment
You will receive a receipt at the end of the year for tax purposes.
If you already pay SICR via the envelope scheme the donation will be added to the yearly statement you get from the Treasurer of SICR.
Sponsorship: what happens if the planned configuration is not met by donations from the Congregation?
If donations do not meet the amount needed, the remainder will be supplemented by Church Funds