Category: Solar PV

Storage of solar power using a battery Energy Storage System – updated

A case study of a domestic installation updated after five months’ use.This report describes my experience of a renewable energy storage system developed by a Cornish start-up company operating from the Falmouth University campus – Wattstor Ltd.  The WATTSTOR™ was commissioned at my Penryn home on 14 March 2015. The data here for this period …
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Also posted in Blog, Case studies, Energy, Resources, Technologies, Truro | Tagged , | Comments closed

Estimating solar PV power generation

Summary Estimates of generated output from solar pv systems need to be handled cautiously: the actual output will vary substantially year by year.  This note below shows that a software tool can give a better long-term estimate than a forecast based on any given year’s actual output. Richard Hopper writes: I have heard on several …
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Also posted in Energy, Issues, Truro | Comments closed

Camborne Parish Church

Revd Mike Firbank writes… At Camborne Parish Church we are trying to change behaviour/attitudes and change the way we heat/light etc our church buildings. Immediate Solutions… Old thermostats in our halls and church were replaced & turned down. Oil sheets were put behind radiators so that instead of heating external walls we reflected the heat …
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Also posted in Church, Energy, Energy efficiency, Lighting, Truro | Comments closed

Bishop Cornish Education Centre, Saltash

The new education centre in the grounds of Bishop Cornish School, Saltash will provide music facilities, before and after school care, nursery provision and also provide facilities for community use, especially for music, education and charity work. A major objective in building the new unit was to reduce our carbon footprint and transport costs and …
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Also posted in Case studies, Energy, Energy efficiency, GSHP, School, Solar water, Sustainable building, Truro, Water | Comments closed

Zero carbon St Michael & All Angels, Withington

St Michaels and All Angels, Withington in Gloucestershire, aims to be the First Zero Carbon Church in the country Headline Proposals from the Zero Carbon Consultation presentation (pdf) Reduce energy demand (floodlight timing, switching off) – 13% elec saving Efficient use of energy (low energy internal lighting) – 24% elec saving Replace old oil boiler …
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Also posted in Biomass, Case studies, Church, Gloucester | Comments closed

PVs at St John’s, Wimborne

The panels were installed in July 2012. Feed In Tariffs earned by March 2014 were £1055.14 against expenditure of just under £8,000, so after 19 months (including 2 winters) have recovered over 13%. Hence payback is probably 8-10 years at current prices and excluding the benefit of the ‘free’ electricity. But in reality full payback …
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Also posted in Case studies, Church, Salisbury | Comments closed


Much of the following is taken from a guidance note prepared by the Exeter DAC (Diocesan Advisory Committee for the Care of Churches). Many of the issues raised therefore relate primarily to church buildings, but the general information about the technologies is relevant to vicarages, schools and other church buildings. Energy efficiency As a general …
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Instant solar PV

A number of the Dioceses are currently trialling a ground mounted solar panel. These are suitable for roofs without much sunlight, listed or thatched buildings, or for clergy and others who are likely to move frequently. The electricity produced will not attract the government’s Feed-in Tariff and will not be exported; the financial savings come …
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