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Bild Energiestadt

Pius Hüsser

Director, Nova Energie GmbH, Aarau

Board member of themunicipality owned utility of Suhr (ca. 90GWh/y)

Suhrsolar, tenant power provided by the DSO

Suhrssolar, 230kW, 2014

Electricity in Switzerland, 58TWh consumption

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PV 2018: approx. 3.3%

Growth: 0.4% per year

2016: 270MW2017: 240MW2018: 300 MW expected

Source:

Utility structure

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• Mostly public owned (Municipality or Canton, no involvement of federal government)

• For some of them, end user installation services are part of their business

• Since a couple of years, some of the bigger players start to buy formerly independent PV installers (ALPIQ, BKW and others - soon 50% market share)

• FiT scheme was first introduced in Burgdorf, Switzerland in ~1990

Citizen PV in Switzerland 1990 - 2010

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1992: “Large” scale PV was built by cooperatives and utilities.

- No return on invest- Funded with subsidies,

donations and equity

- Costs per W: 13.5 €

Citizen PV in Switzerland >2014

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2015: 230kW on a commercial building in Suhr

- Owned and operated by the local utility

- Financed by interest free loans

- Pay back in solar electricity:approx. 11 €cents/kWh

- Duration 20 years- Costs per W: approx. 2€

DSO Technische Betriebe Suhr

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Citizen PV Suhr

4 plants, 400 kW

Copy paste

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Public grid for micro grids?

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….Moreover, ComEd will work with EDF and CUB to

develop an innovative tariff that will allow third

parties to create and manage localized power

grids that can disconnect from the centralized grid,

known as microgrids.

Why Is This Innovative?

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Source Renewable Energy World, April 11, 2018

….This innovative process will find a way for groups of people to:

Opt in to a microgrid project without having to build their own wires between buildings

Incorporate their own solar, batteries, energy efficiency, and/or building controls into a microgrid that could be managed by a non-utility third-party,

Use the existing utility wires to send and share those resources,

Coordinate with the utility to have islanding switches installed, and

Create a way to work with the utility to coordinate operation of the microgrid.

……..

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Thank you